SUPPLEMENTAL AGREEMENT NO. 12
to
Purchase Agreement No. 03729
between
THE BOEING COMPANY
and
SOUTHWEST AIRLINES CO.
Relating to Boeing Model 737-8 and 737-7 Aircraft

THIS SUPPLEMENTAL AGREEMENT No. 12 (SA-12), entered into as of March 24, 2021, is made between THE BOEING COMPANY, a Delaware corporation (Boeing), and SOUTHWEST AIRLINES CO., a Texas corporation (Customer).

RECITALS:

WHEREAS, Customer and Boeing entered into Purchase Agreement Number PA-03729 dated December 13, 2011, as amended and supplemented, (Purchase Agreement) relating to the purchase and sale of Boeing Model 737-8 (737-8 Aircraft) and Model 737-7 aircraft (737-7 Aircraft); collectively the “Aircraft”. This SA-12 is an amendment to and is incorporated into the Purchase Agreement. Capitalized terms used herein but not otherwise defined will have the meaning set forth in the Purchase Agreement;

WHEREAS, Boeing and Customer agree to the sale and purchase of an additional one hundred (100) Firm 737-7 MAX Aircraft, to provide one hundred fifty (150) 2020 Option Aircraft, and five (5) additional Original Option Aircraft (Original Option Aircraft is defined as the options contained on Attachment 1-A to Letter Agreement No. 1106474R3 entitled “Option Aircraft”);

WHEREAS, Boeing has offered and Customer has accepted sixty (60) 737-8 Remarket Aircraft for substitution as Original Option Aircraft or Firm Aircraft;

WHEREAS, Boeing and Customer agree to amend the Purchase Agreement to include [***];

    WHEREAS, Boeing and Customer agree to amend the Purchase Agreement to document Customer’s substitution of seventy (70) firm Model 737-8 Aircraft to firm Model 737-7 Aircraft;

WHEREAS, Boeing and Customer agree to amend the Purchase Agreement to revise the scheduled delivery stream and identify nominal delivery months for the Aircraft;

[***] = Certain identified information has been excluded from the exhibit because it is both not material and is of the type that the registrant treats as private or confidential.

			1
SWA-PA-03729			BOEING PROPRIETARY			SA-12

---

    WHEREAS, Boeing and Customer agree to amend the Purchase Agreement terms on [***];

    WHEREAS, Customer has requested and Boeing has agreed to [***];

WHEREAS, Boeing and Customer agree to amend the Purchase Agreement to include [***]; and

WHEREAS, Boeing and Customer agree to amend the Purchase Agreement to make certain changes to the Letter Agreements as a result of the respective changes in this Supplemental Agreement.

NOW, THEREFORE, the parties agree that the Purchase Agreement is amended as set forth below and otherwise agree as follows:

1.TABLE OF CONTENTS.

The Table of Contents of the Purchase Agreement is deleted in its entirety and replaced with a new Table of Contents (attached), which lists the Tables, Exhibits, and Letter Agreements revised by this SA-12 and is identified by “SA-12”. Such revised Table of Contents is incorporated into the Purchase Agreement by this reference.

2.Tables.

Table 1A, Aircraft Delivery, Description, Price and Advance Payments – 737-8 Aircraft, is deleted in its entirety and replaced by a new Table 1A (identified by "SA-12") attached hereto and incorporated into the Purchase Agreement by this reference.

Table 1B, Aircraft Delivery, Description, Price and Advance Payments – 737-7 Aircraft, is deleted in its entirety and replaced by a new Table 1B (identified by "SA-12") attached hereto and incorporated into the Purchase Agreement by this reference.

3.EXHIBITS.

3.1      Exhibit A3, 737-8 Remarket Aircraft Configuration, is added to and incorporated into the Purchase Agreement by this reference.

3.2     Exhibit B-1, Remarket Aircraft Technical Acceptance and Delivery Requirements and Responsibilities, is added to and incorporated into the Purchase Agreement by this reference.

			2
SWA-PA-03729			BOEING PROPRIETARY			SA-12

---

4.     LETTER AGREEMENTS.

4.1.    Letter Agreement SWA-PA-03729-LA-1106471R1, Substitute Aircraft, is deleted in its entirety and is replaced with the attached revised Letter Agreement SWA-PA-03729-LA-1106471R2.

4.2. Letter Agreement SWA-PA-03729-LA-1106473R1, [***], deleted in its entirety and is replaced with the attached revised Letter Agreement SWA-PA-03729-LA-1106473R2.

4.3. Letter Agreement SWA-PA-03729-LA-1106474R2, Option Aircraft, and its Attachment 1 are deleted in their entirety and are replaced with the attached revised Letter Agreement SWA-PA-03729-LA-1106474R3 and its Attachment 1.

4.4. Letter Agreement SWA-PA-03729-LA-1106475R3, [***], is deleted in its entirety and is replaced with the attached revised Letter Agreement SWA-PA-03729-LA-1106475R4.

4.5. Letter Agreement SWA-PA-03729-LA-1106484R1, [***], is deleted in its entirety and is replaced with the attached revised Letter Agreement SWA-PA-03729-LA-1106484R2.

4.6. Letter Agreement SWA-PA-03729-LA-1301170R2, [***], is deleted in its entirety and is replaced with the attached revised Letter Agreement SWA-PA-03729-LA-1301170R3.

4.7. Letter Agreement SWA-PA-03729-LA-1602486, [***], is deleted in its entirety and is replaced with the attached revised Letter Agreement SWA-PA-03729-LA-1602486R1.

4.8. Letter Agreement SWA-PA-03729-LA-2100594, 737-8 Remarket Aircraft, is added to and incorporated into the Purchase Agreement by this reference.

4.9. Letter Agreement SWA-PA-03729-LA-2100700, Remarket Aircraft Open Configuration Matters, is added to and incorporated into the Purchase Agreement by this reference.

4.10. Letter Agreement SWA-PA-03729-LA-2100811, [***], is added to and incorporated into the Purchase Agreement by this reference.

4.11. Letter Agreement SWA-PA-03729-LA-2100812, [***], is added to and incorporated into the Purchase Agreement by this reference

SWA-PA-03729			3			SA-12
			BOEING PROPRIETARY

---

4.12.    Letter Agreement SWA-PA-03729-LA-2100813, [***], is added to and incorporated into the Purchase Agreement by this reference.

4.13.    Letter Agreement SWA-PA-03729-LA-2100814, [***], is added to and incorporated into the Purchase Agreement by this reference.

4.14.    Letter Agreement SWA-PA-03729-LA-2100819, [***] is added to and incorporated into the Purchase Agreement by this reference.

4.15.    Letter Agreement SWA-PA-03729-LA-2100825, [***], is added to and incorporated into the Purchase Agreement by this reference.

4.16.    Letter Agreement SWA-PA-03729-LA-2100841, [***], is added to and incorporated into the Purchase Agreement by this reference.

4.17.    Letter Agreement SWA-PA-03729-LA-2100984, [***], is added to and incorporated into the Purchase Agreement by this reference.

5.     ADVANCE PAYMENT IMPACTS.

Due to the substitution of seventy (70) 737-8 to 737-7 Aircraft, Customer has[***]

6.    IMPACTS TO PREVIOUSLY DELIVERED AIRCRAFT.

In accordance with Letter Agreement SWA-PA-03729-LA-2100819, [***]

7.    [***]

SWA-PA-03729			4			SA-12
			BOEING PROPRIETARY

---

The Purchase Agreement is deemed to be supplemented to the extent herein provided and as so supplemented will continue in full force and effect.

EXECUTED IN DUPLICATE as of the day and year first above written.

THE BOEING COMPANY						SOUTHWEST AIRLINES CO.
By: /s/ Carson J May						By: /s/ Michael Van de Ven
Name: Carson J May						Name: Michael Van de Ven
Its: Attorney-in-Fact						Its: Chief Operating Officer

SWA-PA-03729			5			SA-12
			BOEING PROPRIETARY

---

TABLE OF CONTENTS

ARTICLES

TITLES

Article 1

Quantity, Model and Description

SA-2

Article 2

Delivery Schedule

Article 3

Price

Article 4

Payment

SA-2

Article 5

Additional Terms

TABLE

TITLE

1A

737-8 Aircraft Information Table

SA-12

1B

737-7 Aircraft Information Table

SA-12

EXHIBIT

A1

737-8 Aircraft Configuration

SA-11

A2

737-7 Aircraft Configuration

SA-8

A3

737-8 Remarket Aircraft Configuration

SA-12

B*

Aircraft Delivery Requirements and Responsibilities

B-1

Remarket Aircraft Technical

SA-12

Acceptance and Delivery Requirements and Responsibilities

SUPPLEMENTAL EXHIBITS

TITLES

AE1*

Escalation Adjustment/Airframe and Optional Features

BFE1

BFE Variables for 737-8

SA-7

BFE2

BFE Variables for 737-7

SA-8

CS1

Customer Support Variables

CS1-7MAX

Customer Support Variables    SA-2

EE1*

Engine Escalation/Engine Warranty and Patent Indemnity

SWA-PA-03729						SA-12
						Page 1
			BOEING PROPRIETARY

---

SLP1*

Service Life Policy Components

LETTER AGREEMENTS

TITLES

SWA-PA-03729-LA-1106463R3

Open Matters

SA-8

SWA-PA-03729-LA-1106464*

[***]

SWA-PA-03729-LA-1106465*

[***]

SWA-PA-03729-LA-1106466

[***]

SWA-PA-03729-LA-1106467R2

[***]

SA-8

SWA-PA-03729-LA-1106468*

[***]

SWA-PA-03729-LA-1106469R1

[***]

SA-2

SWA-PA-03729-LA-1106470R1

[***]

SA-2

SWA-PA-03729-LA-1106471R2

Substitute Aircraft

SA-12

SWA-PA-03729-LA-1106473R2

[***]

SWA-PA-03729-LA-1106474R3

Option Aircraft

SA-12

SWA-PA-03729-LA-1106475R4

[***]

SA-12

SWA-PA-03729-LA-1106476R2

[***]

SA-8

SWA-PA-03729-LA-1106477*

[***]

SWA-PA-03729-LA-1106478

[***]

SWA-PA-03729-LA-1106479R1

[***]

SA-2

SWA-PA-03729-LA-1106480R1

[***]

SA-2

SWA-PA-03729-LA-1106481R2

[***]

SA-2

SWA-PA-03729-LA-1106482*

[***]

SWA-PA-03729-LA-1106483*

[***]

SWA-PA-03729-LA-1106484R2

[***]

SA-12

SWA-PA-03729-LA-1106485*

[***]

SWA-PA-03729						SA-12
						Page 2
			BOEING PROPRIETARY

---

LETTER AGREEMENTS

TITLES

SWA-PA-03729-LA-1209080

[***]

SA-1

SWA-PA-03729-LA-1210419

[***]

SA-1

SWA-PA-03729-LA-1300943

[***]

SA-2

SWA-PA-03729-LA-1301168R3

[***]

SA-6

SWA-PA-03729-LA-1301170R3

[***]

SA-12

SWA-PA-03729-LA-1400371

[***]

SA-7

SWA-PA-03729-LA-1503792

Service Ready Operational Validation

SA-6

SWA-PA-03729-LA-1500831

[***]

SA-7

SWA-PA-03729-LA-1602486R1

[***]

SA-12

SWA-PA-03729-LA-2100594

737-8 Remarket Production Aircraft

SA-12

SWA-PA-03729-LA-2100700

737-8 Open Configuration Matters – Remarket Production Aircraft

SA-12

SWA-PA-03729-LA-2100811

[***]

SA-12

SWA-PA-03729-LA-2100812

[***]

SA-12

SWA-PA-03729-LA-2100813

[***]

SA-12

SWA-PA-03729-LA-2100814

[***]

SA-12

SWA-PA-03729-LA-2100819

[***]

SA-12

SWA-PA-03729-LA-2100825

[***]

SA-12

SWA-PA-03729-LA-2100841

[***]

SA-12

SWA-PA-03729						SA-12
						Page 3
			BOEING PROPRIETARY

---

LETTER AGREEMENTS

TITLES

SWA-PA-03729-LA-2100984

[***]

SA-12

* Denotes revision to Page 1 or Page 2 only to reference 737-7 (SA-2)

SWA-PA-03729						SA-12
						Page 4
			BOEING PROPRIETARY

---

INACTIVE / DELETED TABLES, EXHIBITS, AND LETTER AGREEMENTS

RESTRICTED LETTER AGREEMENTS

Letter Agreement			Title			Last Updated under SA			Current Status
SWA-PA-03729-LA-1106472R1			[***]			SA-2			Deleted under SA-4
SWA-PA- 01810/03729-LA- 1301169			[***]			SA-2			Deleted under SA-4

SWA-PA-03729						SA-12
						Page 5
			BOEING PROPRIETARY

---

Table 1A To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-8 Aircraft

Airframe Model/MTOW:     737-8 Engine Model/Thrust: CFMLEAP-1B28(2)

181,200 pounds 28,800 pounds

Detail Specification: Airframe Price Base Year/Escalation Formula:

D019A008-P (5/1/2017) Jul-11

Non-Standard

Airframe Price:

[***]

Engine Price Base Year/Escalation Formula:

N/A

N/A

Optional Features:

[***]

Sub-Total of Airframe and Features:

[***]

Airframe Escalation Data:

Engine Price (Per Aircraft):

[***]

Base Year Index (ECI):

[***]

Aircraft Basic Price (Excluding BFE/SPE):

[***]

Base Year Index (CPI):

[***]

Buyer Furnished Equipment (BFE) Estimate:

[***]

Seller Purchased Equipment (SPE) Estimate:

[***]

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer Serial Number**

Escalation Factor

Aircraft Block

Notes

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Jul-2017

Jul-2017

1

[***]

36929†

[***]

A

Note 1

[***]

[***]

[***]

[***]

[***]

Jul-2017

Jul-2017

2

[***]

42558†, 42559†

[***]

C

Note 1

[***]

[***]

[***]

[***]

[***]

Aug-2017

Aug-2017

3

[***]

36979, 36930, 36984

[***]

A

Note 1

[***]

[***]

[***]

[***]

[***]

Aug-2017

Aug-2017

1

[***]

42567

[***]

C

Note 1

[***]

[***]

[***]

[***]

[***]

Aug-2017

Aug-2017

2

[***]

42563, 42566†

[***]

C

Note 1

[***]

[***]

[***]

[***]

[***]

Sep-2017

Sep-2017

1

[***]

36934

[***]

A

Note 1

[***]

[***]

[***]

[***]

[***]

Oct-2017

Oct-2017

1

[***]

42544

[***]

A

[***]

[***]

[***]

[***]

[***]

Oct-2017

Oct-2017

1

[***]

42570

[***]

C

[***]

[***]

[***]

[***]

[***]

Nov-2017

Nov-2017

1

[***]

36988†

[***]

A

[***]

[***]

[***]

[***]

[***]

Dec-2017

Dec-2017

1

[***]

42554†

[***]

C

[***]

[***]

[***]

[***]

[***]

Mar-2018

Mar-2018

1

[***]

36989†

[***]

A

[***]

[***]

[***]

[***]

[***]

Mar-2018

Mar-2018

1

[***]

42571

[***]

C

[***]

[***]

[***]

[***]

[***]

Apr-2018

Apr-2018

1

[***]

42546

[***]

A

[***]

[***]

[***]

[***]

[***]

Jun-2018

Jun-2018

1

[***]

42572

[***]

C

[***]

[***]

[***]

[***]

[***]

Jun-2018

Jun-2018

1

[***]

42547

[***]

A

[***]

[***]

[***]

[***]

[***]

Aug-2018

Aug-2018

3

[***]

42548, 37019, 42549

[***]

A

[***]

[***]

[***]

[***]

[***]

Aug-2018

Aug-2018

1

[***]

42574

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2018

Aug-2018

1

[***]

42575

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2018

Sep-2018

2

[***]

42573, 42576

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2018

Dec-2018

1

[***]

42577

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2018

Dec-2018

4

[***]

37042, 42550, 42551, 37043

[***]

A

[***]

[***]

[***]

[***]

[***]

Feb-2021

Jul-2019

1

[***]

42633

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2021

Jul-2019

2

[***]

65437, 65436

[***]

E OPEX

[***]

[***]

[***]

[***]

[***]

Feb-2021

Aug-2019

1

[***]

42634

[***]

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107813 / 108198 / 108732			Boeing Proprietary			Page 1

---

Table 1A To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-8 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer Serial Number**

Escalation Factor

Aircraft Block

Notes

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Feb-2021

Dec-2019

1

[***]

36722

[***]

B

[***]

[***]

[***]

[***]

[***]

Feb-2021

Dec-2019

1

[***]

42537

[***]

A

[***]

[***]

[***]

[***]

[***]

Mar-2021

Aug-2019

1

[***]

42641

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2021

Sep-2019

1

[***]

65471

[***]

E OPEX

[***]

[***]

[***]

[***]

[***]

Apr-2021

Nov-2019

1

[***]

42536

[***]

A

[***]

[***]

[***]

[***]

[***]

Mar-2021

Aug-2019

1

[***]

42637

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2021

Sep-2019

1

[***]

65438

[***]

E OPEX

[***]

[***]

[***]

[***]

[***]

Apr-2021

Oct-2019

2

[***]

42646, 42662

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2021

Oct-2019

2

[***]

42647, 42661

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2021

Oct-2019

1

[***]

65439

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Mar-2021

Oct-2019

1

[***]

65440

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Apr-2021

Nov-2019

1

[***]

42664

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2021

Nov-2019

1

[***]

65473

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Jan-2026

Dec-2019

1

[***]

42666

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2026

Feb-2020

1

[***]

36727

[***]

B

[***]

[***]

[***]

[***]

[***]

Feb-2026

Mar-2020

1

[***]

42580

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2026

Mar-2020

1

[***]

42579

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2026

Apr-2020

1

[***]

42539

[***]

A

[***]

[***]

[***]

[***]

[***]

Apr-2026

Apr-2020

1

[***]

65441

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Jun-2026

May-2020

1

[***]

42669

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2026

May-2020

1

[***]

42553

[***]

A

[***]

[***]

[***]

[***]

[***]

May-2026

May-2020

1

[***]

35970

[***]

B

[***]

[***]

[***]

[***]

[***]

Aug-2026

Jun-2020

1

[***]

42607

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2026

Jun-2020

1

[***]

65442

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Nov-2026

Jul-2020

1

[***]

42665

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2026

Jul-2020

1

[***]

42540

[***]

A

[***]

[***]

[***]

[***]

[***]

Nov-2026

Jul-2020

1

[***]

65443

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Dec-2026

Jul-2020

1

[***]

65444

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Feb-2027

Aug-2020

2

[***]

42672, 42673

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2027

Aug-2020

1

[***]

42541

[***]

A

[***]

[***]

[***]

[***]

[***]

Mar-2027

Aug-2020

1

[***]

65445

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Apr-2027

Aug-2020

1

[***]

65446

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

May-2027

Sep-2020

1

[***]

42674

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2027

Sep-2020

1

[***]

42691

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2027

Sep-2020

1

[***]

42694

[***]

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107813 / 108198 / 108732			Boeing Proprietary			Page 2

---

Table 1A To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-8 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer Serial Number**

Escalation Factor

Aircraft Block

Notes

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Apr-2027

Sep-2020

1

[***]

33941

[***]

B

[***]

[***]

[***]

[***]

[***]

Aug-2027

Sep-2020

1

[***]

65472

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Sep-2027

Sep-2020

1

[***]

65447

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Oct-2027

Sep-2020

1

[***]

65448

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Nov-2027

Oct-2020

1

[***]

42615

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2027

Oct-2020

1

[***]

42543

[***]

A

[***]

[***]

[***]

[***]

[***]

Dec-2027

Oct-2020

1

[***]

65474

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Feb-2028

Nov-2020

2

[***]

42697, 42699

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2028

Nov-2020

1

[***]

36733

[***]

B

[***]

[***]

[***]

[***]

[***]

Mar-2028

Nov-2020

1

[***]

65475

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Apr-2028

Dec-2020

1

[***]

42703

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2028

Dec-2020

1

[***]

33940

[***]

B

[***]

[***]

[***]

[***]

[***]

May-2028

Jan-2021

1

[***]

35974

[***]

B

[***]

[***]

[***]

[***]

[***]

Jun-2028

Jan-2021

1

[***]

65450

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Jul-2028

Jan-2021

1

[***]

65449

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Sep-2028

Feb-2021

1

[***]

65451

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Aug-2028

Feb-2021

1

[***]

65835

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Oct-2028

Mar-2021

1

[***]

42648

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2028

Mar-2021

1

[***]

65452

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Nov-2028

Apr-2021

1

[***]

42650

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2028

Apr-2021

1

[***]

42651

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2029

Apr-2021

1

[***]

42649

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2029

Apr-2021

1

[***]

65454

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Feb-2029

Apr-2021

1

[***]

65453

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Feb-2029

May-2021

1

[***]

42652

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2029

May-2021

1

[***]

42653

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2029

May-2021

1

[***]

42654

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2029

May-2021

1

[***]

65455

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Mar-2029

May-2021

1

[***]

65456

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Apr-2029

Jun-2021

3

[***]

42655, 42656, 42670

[***]

[***]

[***]

[***]

[***]

[***]

May-2029

Jun-2021

1

[***]

65457

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

May-2029

Jul-2021

1

[***]

42658

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2029

Jul-2021

1

[***]

65460

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Jul-2029

Jul-2021

1

[***]

65459

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Jun-2029

Jul-2021

1

[***]

65458

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107813 / 108198 / 108732			Boeing Proprietary			Page 3

---

Table 1A To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-8 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer Serial Number**

Escalation Factor

Aircraft Block

Notes

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

May-2029

Jul-2021

1

[***]

65834

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Sep-2029

Aug-2021

1

[***]

65461

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Jul-2029

Aug-2021

1

[***]

65836

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Aug-2029

Aug-2021

1

[***]

65837

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Aug-2029

Aug-2021

1

[***]

65838

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Aug-2029

Aug-2021

1

[***]

65839

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Sep-2029

Aug-2021

1

[***]

66974

[***]

Note 4

[***]

[***]

[***]

[***]

[***]

Nov-2029

Sep-2021

1

[***]

65462

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Oct-2029

Sep-2021

1

[***]

65463

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Oct-2029

Sep-2021

1

[***]

65840

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Oct-2029

Sep-2021

1

[***]

65841

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Nov-2029

Oct-2021

1

[***]

65466

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Dec-2029

Oct-2021

2

[***]

65465, 65464

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Jan-2030

Nov-2021

1

[***]

65467

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Jan-2030

Dec-2021

1

[***]

65468

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Jan-2030

Dec-2021

2

[***]

65842, 65843

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Feb-2030

Jan-2022

1

[***]

65469

[***]

D OPEX

[***]

[***]

[***]

[***]

[***]

Feb-2030

Jan-2022

1

[***]

65470

[***]

OPEX

[***]

[***]

[***]

[***]

[***]

Feb-2030

Apr-2022

1

[***]

65844

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Mar-2030

Jul-2022

3

[***]

65855, 65853, 65851

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Mar-2030

Aug-2022

1

[***]

65845

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Apr-2030

Aug-2022

2

[***]

65847, 65849

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Apr-2030

Oct-2022

2

[***]

65857, 65859

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

May-2030

Dec-2022

1

[***]

65861

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

May-2030

Mar-2023

1

[***]

36732

[***]

B

[***]

[***]

[***]

[***]

[***]

May-2030

Apr-2023

1

[***]

38806

[***]

B

[***]

[***]

[***]

[***]

[***]

May-2030

Jun-2023

1

[***]

37034

[***]

A

[***]

[***]

[***]

[***]

[***]

Jun-2030

Aug-2023

1

[***]

42552

[***]

A

[***]

[***]

[***]

[***]

[***]

Jun-2030

Oct-2023

1

[***]

42538

[***]

A

[***]

[***]

[***]

[***]

[***]

Jun-2030

Nov-2023

1

[***]

38815

[***]

B

[***]

[***]

[***]

[***]

[***]

Jul-2030

Mar-2024

3

[***]

38817, 35968, 35972

[***]

B

[***]

[***]

[***]

[***]

[***]

Jul-2030

Apr-2024

1

[***]

36736

[***]

B

[***]

[***]

[***]

[***]

[***]

Aug-2030

Jun-2024

1

[***]

42542

[***]

A

[***]

[***]

[***]

[***]

[***]

Aug-2030

Jul-2024

2

[***]

35963, 35967

[***]

B

[***]

[***]

[***]

[***]

[***]

Aug-2030

Sep-2024

1

[***]

36730

[***]

B

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107813 / 108198 / 108732			Boeing Proprietary			Page 4

---

Table 1A To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-8 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer Serial Number**

Escalation Factor

Aircraft Block

Notes

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Sep-2030

Nov-2024

1

[***]

35971

[***]

B

[***]

[***]

[***]

[***]

[***]

Sep-2030

Dec-2024

1

[***]

35975

[***]

B

[***]

[***]

[***]

[***]

[***]

Sep-2030

Jan-2025

2

[***]

38804, 38805

[***]

B

[***]

[***]

[***]

[***]

[***]

Oct-2030

Jan-2025

2

[***]

65863, 65865

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Oct-2030

Feb-2025

1

[***]

36729

[***]

B

[***]

[***]

[***]

[***]

[***]

Nov-2030

Feb-2025

2

[***]

65868, 65869

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Nov-2030

Mar-2025

2

[***]

65870, 65871

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Dec-2030

Apr-2025

2

[***]

65872, 65873

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Dec-2030

May-2025

2

[***]

65846, 65848

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Jan-2031

Jun-2025

1

[***]

65852

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Feb-2031

Jun-2025

1

[***]

65850

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Mar-2031

Jul-2025

1

[***]

65854

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Apr-2031

Jul-2025

1

[***]

65856

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

May-2031

Aug-2025

1

[***]

65860

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Jun-2031

Aug-2025

1

[***]

65858

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Jul-2031

Sep-2025

1

[***]

65862

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Aug-2031

Oct-2025

1

[***]

65864

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Sep-2031

Nov-2025

1

[***]

65866

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Oct-2031

Dec-2025

1

[***]

65867

[***]

OPEX

Note 3

[***]

[***]

[***]

[***]

[***]

Total:			180

* [***]

** Manufacturer Serial Numbers (MSN) are for reference only and are subject to change.

† [***]

Notes:

(1) [***]

(2) [***]

(3) [***]

(4) [***]

						SA-12
SWA-PA-03729 107813 / 108198 / 108732			Boeing Proprietary			Page 5

---

Table 1B To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-7 Aircraft

Airframe Model/MTOW:

737-7

177,000 pounds

Detail Specification:

D019A008SWA17P-1

Engine Model/Thrust:

CFMLEAP-1B27C

26,400 pounds

Airframe Price Base Year/Escalation Formula:

Jul-11

ECI-MFG/CPI

Airframe Price:

[***]

Engine Price Base Year/Escalation Formula:

N/A

N/A

Optional Features:

[***]

Sub-Total of Airframe and Features:

[***]

Airframe Escalation Data:

Engine Price (Per Aircraft):

[***]

Base Year Index (ECI):

[***]

Aircraft Basic Price (Excluding BFE/SPE):

[***]

Base Year Index (CPI):

[***]

Buyer Furnished Equipment (BFE) Estimate:

[***]

Seller Purchased Equipment (SPE) Estimate:

[***]

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

Serial Number**

Escalation Factor

Note

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Jan-22

Apr-2019

3

[***]

42586, 42587, 42588

[***]

[***]

[***]

[***]

[***]

[***]

Jan-22

May-2019

1

[***]

42589

[***]

[***]

[***]

[***]

[***]

[***]

Feb-22

May-2019

1

[***]

42590

[***]

[***]

[***]

[***]

[***]

[***]

Feb-22

Aug-2019

2

[***]

42561, 42569

[***]

[***]

[***]

[***]

[***]

[***]

Jun-22

Jan-2023

1

[***]

42591

[***]

[***]

[***]

[***]

[***]

[***]

Jun-22

Feb-2023

1

[***]

42592

[***]

[***]

[***]

[***]

[***]

[***]

Jun-22

Mar-2023

1

[***]

42595

[***]

[***]

[***]

[***]

[***]

[***]

Jun-22

Apr-2023

1

[***]

42598

[***]

[***]

[***]

[***]

[***]

[***]

Jun-22

May-2023

1

[***]

42600

[***]

[***]

[***]

[***]

[***]

[***]

Jul-22

Jun-2023

1

[***]

42602

[***]

[***]

[***]

[***]

[***]

[***]

Jul-22

Jul-2023

1

[***]

42603

[***]

[***]

[***]

[***]

[***]

[***]

Jul-22

Aug-2023

1

[***]

42604

[***]

[***]

[***]

[***]

[***]

[***]

Jul-22

Sep-2023

1

[***]

42609

[***]

[***]

[***]

[***]

[***]

[***]

Aug-22

Oct-2023

1

[***]

42614

[***]

[***]

[***]

[***]

[***]

[***]

Aug-22

Nov-2023

1

[***]

42613

[***]

[***]

[***]

[***]

[***]

[***]

Aug-22

Dec-2023

1

[***]

42616

[***]

[***]

[***]

[***]

[***]

[***]

Aug-22

Jan-2024

1

[***]

42618

[***]

[***]

[***]

[***]

[***]

[***]

Sep-22

Feb-2024

1

[***]

42620

[***]

[***]

[***]

[***]

[***]

[***]

Sep-22

Mar-2024

1

[***]

42621

[***]

[***]

[***]

[***]

[***]

[***]

Sep-22

Apr-2024

1

[***]

42623

[***]

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107953- 1F 116795- 1F			Boeing Proprietary			Page 1

---

Table 1B To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-7 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

Serial Number**

Escalation Factor

Note

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Oct-22

May-2024

1

[***]

42627

[***]

[***]

[***]

[***]

[***]

[***]

Oct-22

Jun-2024

1

[***]

42629

[***]

[***]

[***]

[***]

[***]

[***]

Oct-22

Jul-2024

1

[***]

42631

[***]

[***]

[***]

[***]

[***]

[***]

Nov-22

Aug-2024

1

[***]

42632

[***]

[***]

[***]

[***]

[***]

[***]

Nov-22

Sep-2024

1

[***]

42635

[***]

[***]

[***]

[***]

[***]

[***]

Dec-22

Oct-2024

1

[***]

42638

[***]

[***]

[***]

[***]

[***]

[***]

Dec-22

Nov-2024

1

[***]

42642

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2023

Jul-21

2

[***]

42657, 42671

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Feb-2023

Mar-22

2

[***]

42679, 42678

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Feb-2023

Apr-22

1

[***]

42688

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Mar-2023

Apr-22

2

[***]

42681, 42680

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Mar-2023

May-22

1

[***]

42684

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Apr-2023

May-22

2

[***]

42683, 42682

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Apr-2023

Jun-22

1

[***]

42687

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

May-2023

Jun-22

2

[***]

42686, 42685

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

May-2023

Jul-22

1

[***]

42690

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jun-2023

Jul-22

1

[***]

42689

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jun-2023

Aug-22

1

[***]

42693

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jul-2023

Aug-22

1

[***]

42695

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jul-2023

Jan-23

1

[***]

42565

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Aug-2023

Jan-23

1

[***]

42560

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Aug-2023

Feb-23

2

[***]

42562, 42564

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Sep-2023

Mar-23

1

[***]

42557

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Sep-2023

Apr-23

1

[***]

42555

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Oct-2023

May-23

2

[***]

42594, 42568

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Oct-2023

Jun-23

1

[***]

42581

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Nov-2023

Jul-23

2

[***]

42582, 42597

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Dec-2023

Aug-23

1

[***]

42593

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Dec-2023

Sep-23

1

[***]

42578

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jan-2024

Sep-23

1

[***]

42601

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107953- 1F 116795- 1F			Boeing Proprietary			Page 2

---

Table 1B To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-7 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

Serial Number**

Escalation Factor

Note

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Jan-2024

Oct-23

1

[***]

42605

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Feb-2024

Dec-23

1

[***]

42583

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Feb-2024

Jan-24

2

[***]

42584, 42585

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Mar-2024

Jan-24

1

[***]

42611

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Mar-2024

Feb-24

2

[***]

42596, 42599

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Apr-2024

Feb-24

1

[***]

42612

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Apr-2024

Apr-24

2

[***]

42606, 42617

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

May-2024

May-24

3

[***]

42608, 42619, 42622

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jun-2024

Jun-24

1

[***]

42610

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jun-2024

Aug-24

1

[***]

42626

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jul-2024

Aug-24

1

[***]

42624

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jul-2024

Sep-24

1

[***]

42630

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Aug-2024

Oct-24

2

[***]

42625, 42636

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Aug-2024

Nov-24

1

[***]

42639

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Sep-2024

Dec-24

2

[***]

42640, 42628

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Oct-2024

Feb-25

1

[***]

42643

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Oct-2024

Mar-25

2

[***]

42645, 42644

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Nov-2024

Apr-25

2

[***]

42659, 42660

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Dec-2024

May-25

1

[***]

42663

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Dec-2024

Jun-25

1

[***]

42667

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jan-2025

Jul-25

1

[***]

42668

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Jan-2025

Aug-25

1

[***]

42675

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Feb-2025

Sep-25

2

[***]

42677, 42676

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Feb-2025

Oct-25

1

[***]

42692

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Mar-2025

Oct-25

1

[***]

42696

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Mar-2025

Nov-25

2

[***]

42698, 42700

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Apr-2025

Dec-25

2

[***]

42702, 42701

[***]

***737-8 Sub

[***]

[***]

[***]

[***]

[***]

Apr-2025

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2025

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107953- 1F 116795- 1F			Boeing Proprietary			Page 3

---

Table 1B To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-7 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

Serial Number**

Escalation Factor

Note

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Jul-2025

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2025

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2025

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2025

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2026

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2026

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2026

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2026

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2027

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107953- 1F 116795- 1F			Boeing Proprietary			Page 4

---

Table 1B To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-7 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe

Manufacturer

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

Serial Number**

Escalation Factor

Note

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Jan-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2028

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2029

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2030

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2030

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

						SA-12
SWA-PA-03729 107953- 1F 116795- 1F			Boeing Proprietary			Page 5

---

Table 1B To
Purchase Agreement No. PA-03729
Aircraft Delivery, Description, Price and Advance Payments
737-7 Aircraft

Delivery Date*

Original Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Manufacturer

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

Serial Number**

Escalation Factor

Note

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Jul-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2030

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2030

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

			Total:			200

* [***]

.

** Manufacturer Serial Numbers (MSN) are for reference only and are subject to change.

*** [***]

Notes:

(1) [***].

						SA-12
SWA-PA-03729 107953- 1F 116795- 1F			Boeing Proprietary			Page 6

---

AIRCRAFT CONFIGURATION FOR
REMARKET AIRCRAFT
BETWEEN
THE BOEING COMPANY
AND
SOUTHWEST AIRLINES CO.
EXHIBIT A-3 to PURCHASE AGREEMENT NUMBER PA-03729

Page 1
BOEING PROPRIETARY

---

Exhibit A-3
AIRCRAFT CONFIGURATION for Remarket aircraft
Dated March < >, 2021
relating to
BOEING MODEL 737-8 REMARKET AIRCRAFT

This Exhibit A-3 contains the As-Built Configuration for Initial Technical Acceptance of the Remarket Aircraft identified below, and will be amended by way of supplemental agreement, pursuant to the provisions of Letter Agreement SWA-PA-03729-LA-2100700, entitled “Remarket Aircraft Open Matters,” to describe the Delivery Configuration of the Remarket Aircraft, subsequent to Boeing and Customer finalizing the Delivery Configuration for the Remarket Aircraft.

EXHIBIT A-3

THE AS-BUILT CONFIGURATION FOR THE REMARKET AIRCRAFT IS UNDETERMINED AT THIS POINT IN TIME. ONCE THE AS-BUILT CONFIGURATION IS DETERMINED, A REVISION TO THIS EXHIBIT A-3 WILL BE INCORPORATED INTO THE PURCHASE AGREEMENT.

SWA-PA-03729			SA-12
Page 2
BOEING PROPRIETARY

---

REMARKET AIRCRAFT TECHNICAL ACCEPTANCE AND DELIVERY REQUIREMENTS AND RESPONSIBILITIES
between
THE BOEING COMPANY
and
SOUTHWEST aIRLINES co.
Exhibit B-1 to Purchase Agreement
Number PA-03729

SWA-PA-03729 Exhibit B-1						SA-12
						Page 1
			BOEING PROPRIETARY

---

EXHIBIT B-1
REMARKET AIRCRAFT TECHNICAL ACCEPTANCE AND DELIVERY REQUIREMENTS AND RESPONSIBILITIES
relating to
Boeing Model 737-8 Remarket Aircraft

Both Boeing and Customer have certain documentation and approval responsibilities at various times during the construction and delivery cycle of the Remarket Aircraft that are critical to accomplishing final delivery of the Reconfigured Remarket Aircraft, and ensuring a positive experience for both parties. This Exhibit B-1 documents those responsibilities and indicates recommended completion deadlines for the actions to be accomplished.

EXHIBIT B-1
THE REMARKET AIRCRAFT TECHNICAL ACCEPTANCE AND
DELIVERY REQUIREMENTS AND RESPONSIBILITIES ARE UNDETERMINED AT THIS POINT IN TIME. ONCE THE REMARKET AIRCRAFT TECHNICAL ACCEPTANCE AND
DELIVERY REQUIREMENTS AND RESPONSIBILITIES ARE DETERMINED, A REVISION TO THIS EXHIBIT B-1 WILL BE INCORPORATED INTO THE PURCHASE AGREEMENT.

SWA-PA-03729 Exhibit B-1						SA-12
						Page 2
			BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle WA 98124-2207

SWA-PA-03729-LA-1106471R2

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    Substitute Aircraft

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft (Aircraft)

2)    Letter Agreement No. SWA-PA-03729-LA-1106469, [***]

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.[***]

2.[***]

SWA-PA-03729 LA-1106471R2						SA-12
Aircraft Model Substitution						Page 1
			BOEING PROPRIETARY

---

3.     [***]

4.      [***]

SWA-PA-03729 LA-1106471R2						SA-12
Aircraft Model Substitution						Page 2
			BOEING PROPRIETARY

---

5. Assignment.

Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Aircraft and cannot be assigned in whole or, in part.

6. Confidential Treatment.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a

SWA-PA-03729 LA-1106471R2						SA-12
Aircraft Model Substitution						Page 3
			BOEING PROPRIETARY

---

need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J. May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24, 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729 LA-1106471R2						SA-12
Aircraft Model Substitution						Page 4
			BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle WA 98124-2207

SWA-PA-03729-LA-1106473R2

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and Model 737-7 aircraft

2)    Letter Agreement SWA-PA-03729-LA-1106471R2 entitled “Substitute Aircraft” (Substitution Letter)

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.    [***]

SWA-PA-03729 LA-1106473R2						SA-12
[***]						Page 1
BOEING PROPRIETARY

---

SWA-PA-03729 LA-1106473R2						SA-12
[***]						Page 2
BOEING PROPRIETARY

---

2.     [***]

SWA-PA-03729 LA-1106473R2						SA-12
[***]						Page 3
BOEING PROPRIETARY

---

SWA-PA-03729 LA-1106473R2						SA-12
[***]						Page 4
BOEING PROPRIETARY

---

SWA-PA-03729 LA-1106473R2						SA-12
[***]						Page 5
BOEING PROPRIETARY

---

3.    [***]

4.     Assignment.

Unless otherwise noted herein, [***] described in this Letter Agreement are provided [***] to Customer and in consideration of Customer’s taking title to the Substitute Aircraft at time of delivery and becoming the operator of the Substitute Aircraft. This Letter Agreement cannot be assigned, in whole or in part, without the prior written consent of Boeing.

5. Confidentiality

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties. Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of

SWA-PA-03729 LA-1106473R2						SA-12
[***]						Page 6
BOEING PROPRIETARY

---

Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

Very truly yours,

THE BOEING COMPANY
By			/s/ Carson J May
Name			Carson J May
Its			Attorney-In-Fact

ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729 LA-1106473R2						SA-12
[***]						Page 7
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle WA 98124-2207

SWA-PA-03729-LA-1106474R3

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:         Option Aircraft

Reference:    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 aircraft and Model 737-7 aircraft

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.Right to Purchase Option Aircraft.

Subject to the terms and conditions contained in this Letter Agreement, in addition to the Aircraft described in Table 1 to the Purchase Agreement as of the date of execution of this Letter Agreement, Customer will have the option to purchase additional Boeing Model 737-8 aircraft as option aircraft (Option Aircraft).

2.Delivery.

The number of Option Aircraft and delivery dates are listed in the Attachment 1-A and 1-B (collectively Attachment 1) to this Letter Agreement. The Attachment 1-A Aircraft are the Original Option Aircraft (Original Option Aircraft) and the Attachment 1-B are the 2020 Option Aircraft (2020 Option Aircraft).

3.Configuration.

3.1 Subject to the provisions of Article 3.2, below, the configuration for the Option Aircraft will be the Detail Specification for Boeing Model 737-8 aircraft at the revision level in effect at the time of Definitive Agreement (as defined in Article 8). Such Detail Specification will be revised to include (i) changes applicable to the Detail Specification that are developed by Boeing between the Option Exercise Date (as defined below) and the signing of the Definitive Agreement, (ii) changes required to obtain required regulatory certificates, and (iii) other changes as mutually agreed.

SWA-PA-03729 LA-1106474R3						SA-12
Option Aircraft						Page 1
BOEING PROPRIETARY

---

3.2 Boeing reserves the right to configure the Option Aircraft starting from a different configuration specification, provided that it can achieve the same configuration which would result pursuant to the provisions of Article 3.1.

4.     [***]

5.     [***]

SWA-PA-03729 LA-1106474R3						SA-12
Option Aircraft						Page 2
BOEING PROPRIETARY

---

6.     [***]

7.     [***]

8.     [***]

9.     Assignment.

Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Option Aircraft and cannot be assigned in whole or in part.

10.     Confidentiality.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees

SWA-PA-03729 LA-1106474R3						SA-12
Option Aircraft						Page 3
BOEING PROPRIETARY

---

to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729 LA-1106474R3						SA-12
Option Aircraft						Page 4
BOEING PROPRIETARY

---

Attachment 1-A To
Letter Agreement No. 1106474
Aircraft Delivery, Description, Price and Advance Payments

Airframe Model/MTOW:     737-8 Engine Model/Thrust:     CFMLEAP-1B28(1)

181,200 pounds 28,800 pounds

Detail Specification: Airframe Price Base Year/Escalation Formula:

D019A008-S (5/1/2017) Jul-11

ECI-MFG/CPI

Airframe Price:

[***]

Engine Price Base Year/Escalation Formula:

N/A

N/A

Optional Features:

[***]

Sub-Total of Airframe and Features:

[***]

Airframe Escalation Data:

Engine Price (Per Aircraft):

[***]

Base Year Index (ECI):

[***]

Aircraft Basic Price (Excluding BFE/SPE):

[***]

Base Year Index (CPI):

[***]

Buyer Furnished Equipment (BFE) Estimate:

[***]

Seller Purchased Equipment (SPE) Estimate:

[***]

Non-Refundable Deposit/Aircraft at Def Agreement:     [***]

Delivery Date

Number of Aircraft

Escalation Factor (Airframe)

Option Exercise Date Deadline

Note

MSN

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Mar-2022

5

[***]

[***]

Remarket Aircraft**

67206, 67205, 67207, 67208, 67209

[***]

[***]

[***]

[***]

[***]

Apr-2022

5

[***]

[***]

Remarket Aircraft**

67210, 67211, 67212, 67213, 67214

[***]

[***]

[***]

[***]

[***]

May-2022

1

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

May-2022

4

[***]

[***]

Remarket Aircraft**

67216, 67215, 67218, 67217

[***]

[***]

[***]

[***]

[***]

Jun-2022

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Jul-2022

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Aug-2022

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Sep-2022

1

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Sep-2022

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2022

1

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Oct-2022

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2022

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Nov-2022

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2022

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Dec-2022

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Jan-2023

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2023

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Mar-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

SWA-PA-03729-LA-1106474 107813 116801- 1F.txt			Boeing Proprietary			Page 1

---

Attachment 1-A To
Letter Agreement No. 1106474
Aircraft Delivery, Description, Price and Advance Payments

Delivery Date

Number of Aircraft

Escalation Factor (Airframe)

Option Exercise Date Deadline

Note

MSN

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Mar-2023

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

May-2023

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Jun-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Jul-2023

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Jul-2023

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Sep-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Sep-2023

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2023

3

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Nov-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Nov-2023

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2023

2

[***]

[***]

Remarket Aircraft**

[***]

[***]

[***]

[***]

[***]

Dec-2023

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2024

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2024

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2024

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2024

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2024

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2024

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2024

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2025

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2025

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2025

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2025

3

[***]

[***]

Previously Earned

***

[***]

[***]

[***]

[***]

[***]

Jun-2025

2

[***]

[***]

Previously Earned

***

[***]

[***]

[***]

[***]

[***]

Total:			120

*[***]

SWA-PA-03729-LA-1106474 107813 116801- 1F.txt			Boeing Proprietary			Page 2

---

Attachment 1-A To
Letter Agreement No. 1106474
Aircraft Delivery, Description, Price and Advance Payments

Delivery Date

Number of Aircraft

Escalation Factor (Airframe)

Option Exercise Date Deadline

Note

MSN

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

** [***]

***[***]

Note:

(1) [***]

SWA-PA-03729-LA-1106474 107813 116801- 1F.txt			Boeing Proprietary			Page 3

---

Attachment 1-B To
Letter Agreement No. 1106474
Aircraft Delivery, Description, Price and Advance Payments

Airframe Model/MTOW:

737-8

181,200 pounds

Detail Specification:

D019A008-S (5/1/2017)

Engine Mode/Thrust:

CFMLEAP-1B28(1)

28,800 pounds

Airframe Price Base Year/Escalation Formula:

Jul-11

Non-Standard

Airframe Price:

[***]

Engine Price Base Year/Escalation Formula:

Jul-11

Non-Standard

Optional Features:

[***]

Sub-Total of Airframe and Features:

[***]

Airframe Escalation Data:

Engine Price (Per Aircraft):

[***]

Base Year Index (ECI):

Aircraft Basic Price (Excluding BFE/SPE):

[***]

Base Year Index (CPI):

Buyer Furnished Equipment (BFE) Estimate:

[***]

Seller Purchased Equipment (SPE) Estimate:

[***]

Deposit per Aircraft:

[***]

Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Option Exercise Date

Escalation

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Deadline

Factor

Jul-2024

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2024

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2024

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2024

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2024

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2024

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2025

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2025

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2025

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

SWA-PA-03729-LA-116800- 1F.txt			Boeing Proprietary			Page 1

---

Attachment 1-B To
Letter Agreement No. 1106474
Aircraft Delivery, Description, Price and Advance Payments

Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Option Exercise Date

Escalation

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Deadline

Factor

Jan-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2026

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2026

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2026

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2026

4

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2026

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2027

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2027

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2027

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2027

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2027

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2027

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2027

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

SWA-PA-03729-LA-116800- 1F.txt			Boeing Proprietary			Page 2

---

Attachment 1-B To
Letter Agreement No. 1106474
Aircraft Delivery, Description, Price and Advance Payments

Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Option Exercise Date

Escalation

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Deadline

Factor

Feb-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2028

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2028

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2028

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2028

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2028

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Nov-2028

3

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Dec-2028

2

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jan-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Feb-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Mar-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Apr-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

May-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jun-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Jul-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Aug-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Sep-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Oct-2029

1

[***]

[***]

[***]

[***]

[***]

[***]

[***]

[***]

Total:			150

* [***]

SWA-PA-03729-LA-116800- 1F.txt			Boeing Proprietary			Page 3

---

Attachment 1-B To
Letter Agreement No. 1106474
Aircraft Delivery, Description, Price and Advance Payments

Delivery Date*

Number of Aircraft

Escalation Factor (Airframe)

Option Exercise Date

Escalation

Escalation Estimate Adv Payment Base Price Per A/P

Advance Payment Per Aircraft (Amts. Due/Mos. Prior to Delivery):

At Signing [***]

24 Mos. [***]

21/18/12/9/6 Mos. [***]

Total [***]

Deadline

Factor

Note:

(1) [***]

SWA-PA-03729-LA-116800- 1F.txt			Boeing Proprietary			Page 4

---

			The Boeing Company P.O. Box 3707 Seattle WA 98124-2207

SWA-PA-03729-LA-1106475R4

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:            [***]

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and Model 737-7 aircraft

2)     Letter Agreement SWA-PA-03729-LA-1106474R2 entitled “Option Aircraft” (Option Aircraft Letter Agreement)

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.[***]

---

SWA-PA-03729-LA-1106475R4			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

SWA-PA-03729-LA-1106475R4			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

2.[***]

3.Assignment.

Unless otherwise noted herein, [***] described in this Letter Agreement are provided [***] to Customer and in consideration of Customer’s taking title to the Option Aircraft at time of delivery and becoming the operator of the Option Aircraft. This Letter Agreement cannot be assigned, in whole or in part, without the prior written consent of Boeing.

SWA-PA-03729-LA-1106475R4			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

4.Confidentiality

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-1106475R4			SA-12
[***]			Page 5
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-1106475R4			SA-12
[***]			Page 6
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle WA 98124-2207

SWA-PA-03729-LA-1106484R2

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

Reference:    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft (Aircraft)

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.Defined Terms: The following capitalized terms have the following meaning:

1.1         [***]

1.2        [***]

1.3        Program Aircraft means each firm and exercised Option Aircraft specified in Table 1 of the Purchase Agreement as of the date of this Letter that are scheduled for delivery prior to 2024.

2.[***]

3.[***]

SWA-PA-03729-LA-1106484R3			SA-12
[***]			Page 1
BOEING PROPRIETARY

---

4.[***]

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

5.[***]

6.[***]

7.Assignment. Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Aircraft and cannot be assigned in whole or, in part.

8.Confidentiality. Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

Very truly yours,

THE BOEING COMPANY
By			/s/ Carson J May
Its			Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:						March 25 , 2021
SOUTHWEST AIRLINES CO.
By			/s/ Michael Van de Ven
Its			Chief Operating Officer

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

ATTACHMENT A

[***]

[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]

    

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 5

    

BOEING PROPRIETARY

---

			ATTACHMENT B [***]

[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 6
BOEING PROPRIETARY

---

			ATTACHMENT B [***]

[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 7
BOEING PROPRIETARY

---

			ATTACHMENT B [***]

[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 8
BOEING PROPRIETARY

---

			ATTACHMENT B [***]

[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 9
BOEING PROPRIETARY

---

			ATTACHMENT B [***]

[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]
[***]			[***]			[***]			[***]

SWA-PA-03729-LA-1106484R2			SA-12
[***]			Page 10
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle WA 98124-2207

SWA-PA-03729-LA-1301170R3

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

Reference:    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.[***]

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 1

BOEING PROPRIETARY

---

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

2.[***]

3.Assignment.

Unless otherwise noted herein, [***] described in this Letter Agreement are provided [***] to Customer and in consideration of Customer’s taking title to the 737-7 Aircraft at time of delivery and becoming the operator of the 737-7 Aircraft. This Letter

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

Agreement cannot be assigned, in whole or in part, without the prior written consent of Boeing.

4.Confidentiality

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 5
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle WA 98124-2207

SWA-PA-03729-LA-1602486R1

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

Reference:    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

[***]

1.Definitions.

In this Letter Agreement, the following terms have meanings as follows:

Aircraft refers to any of the Boeing Model 737-8 and 737-7 aircraft described in Table 1A and Table 1B, respectively, of the Purchase Agreement.

[***]

[***]

Effective Date means the date on which SA-12 is mutually executed by the parties.

[***]

2.     [***]

SWA-PA-03729-LA-1602486R1			SA-12
[***]			Page 1

BOEING PROPRIETARY

---

3.     [***]

4.     [***]

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

5.     [***]

6.     [***]

7.     [***]

8.     [***]

9.     [***]

10.     Assignment.

Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Aircraft and cannot be assigned in whole or in part.

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

11.     Confidentiality.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By			/s/ Carson J May
Name			Carson J May
Its			Attorney-In-Fact

ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-1301170R3			SA-12
[***]			Page 5
BOEING PROPRIETARY

---

    

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100594

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    737-8 Remarket Aircraft

Reference:    a) Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to models 737-8 and 737-7 aircraft (Aircraft); and

    b) Letter Agreement No. SWA-PA-03729-LA-2100700 entitled “Remarket Aircraft – Open Configuration Matters” (Remarket Aircraft Open Configuration Matters) to the Purchase Agreement

    This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement and governs Customer’s purchase of sixty (60) remarket Boeing model 737-8 Aircraft with CFMI engines (Remarket Aircraft), under the terms and conditions described in this Letter Agreement and the Purchase Agreement. All capitalized terms which are not otherwise defined herein shall have the definitions specified in the Purchase Agreement and other letter agreements specifically addressing the Remarket Aircraft.

    This Letter Agreement incorporates in the Purchase Agreement those terms applicable only to the Remarket Aircraft. Except as expressly amended by the terms of this Letter Agreement, Remarket Aircraft are in all other respects “Aircraft” under the terms of the Purchase Agreement.

    [***]

    [***]

SA-12
Page 1
BOEING PROPRIETARY

---

    [***]

1.    [***]

2.    [***]

SWA-PA-03729-LA-2100594			SA-12
			Page 2
BOEING PROPRIETARY

---

`    

3.    Miscellaneous.

    3.1    [***]

    3.2     [***]

    3.3    [***]

    3.4    [***]

4.    [***]

SWA-PA-03729-LA-2100594			SA-12
			Page 3
BOEING PROPRIETARY

---

5.    Assignment.

Notwithstanding any other provisions of the Purchase Agreement to the contrary, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Remarket Aircraft and the Replacement Aircraft and cannot be assigned in whole or in part.

SWA-PA-03729-LA-2100594			SA-12
			Page 4
BOEING PROPRIETARY

---

6.    Confidential Treatment.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally or to other parties. Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Remarket Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

    

SWA-PA-03729-LA-2100594			SA-12
			Page 5
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24, 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

            

SWA-PA-03729-LA-2100594			SA-12
			Page 6
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100700

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    Remarket Aircraft – Open Matters

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft (Aircraft)

2)    Letter Agreement No. SWA-PA-03729-LA-1106474R3 entitled “Option Aircraft” (Option Aircraft Letter Agreement) to the Purchase Agreement

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement will have the same meaning as in the Purchase Agreement.

1.    Commitment of the Parties. Customer and Boeing agree that there are various details associated with the Remarket Aircraft in Attachment 1-A to the Option Aircraft Letter Agreement that have yet to be discussed and finalized between the Parties.

1.1     [***]

1.2     [***]

2.    [***]

			SA-12
			Page 1
BOEING PROPRIETARY

---

3.    [***]

4.    [***]

5.    Confidential Treatment.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally or to other parties. Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Remarket Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of

SWA-PA-03729-LA-2100700			SA-12
Remarket Aircraft – Open Matters			Page 2
BOEING PROPRIETARY

---

Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24, 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

            

SWA-PA-03729-LA-2100700			SA-12
Remarket Aircraft – Open Matters			Page 3
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100811

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:        [***]

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and Model 737-7 aircraft

2)     Letter Agreement SWA-PA-03729-LA-1106474R3 entitled “Option Aircraft” (Option Aircraft Letter Agreement)

3)     Letter Agreement SWA-PA-03729-LA-1106475R4 entitled [***]

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

    [***]

    [***]

[***]    

			SA-12
			Page 1
BOEING PROPRIETARY

---

1.[***]

SWA-PA-03729-LA-2100811			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

2.[***]

    

SWA-PA-03729-LA-2100811			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

3.Confidentiality.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article)

SWA-PA-03729-LA-2100811			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

Very truly yours,

THE BOEING COMPANY
By			/s/ Carson J May
Its			Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:						March 24 , 2021
SOUTHWEST AIRLINES CO.
By			/s/ Michael Van de Ven
Its			Chief Operating Officer

SWA-PA-03729-LA-2100811			SA-12
[***]			Page 5
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100812

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:        [***]

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and Model 737-7 aircraft

2)    Letter Agreement SWA-PA-03729-LA-1106474R3 entitled “Option Aircraft” (Option Aircraft Letter Agreement)

3)    Letter Agreement SWA-PA-03729-LA-1106475R4 entitled [***]

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

[***]

1.[***]

						SA-12
						Page 1
			BOEING PROPRIETARY

---

SWA-PA-03729-LA-2100812			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

2.[***]

SWA-PA-03729-LA-2100812			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

3.[***]

SWA-PA-03729-LA-2100812			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

4.Confidentiality.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-2100812			SA-12
[***]			Page 5
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-2100812			SA-12
[***]			Page 6
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100813

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

Reference:    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 aircraft and Model 737-7 aircraft

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

    [***]

1.[***]

2.Assignment.

Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Aircraft and leased aircraft and cannot be assigned in whole or in part.

3.Confidentiality

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and

						SA-12
						Page 1
			BOEING PROPRIETARY

---

officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-2100813			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-2100813			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100814

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

Reference:    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft (Aircraft)

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement will have the same meaning as in the Purchase Agreement.

1.Definitions.

[***]

[***]

[***]

[***]

Option Aircraft will have the meaning specified in Letter Agreement Number LA-1106474R3 relating to Option Aircraft.

Original Option Aircraft will have the meaning specified in Letter Agreement Number LA-1106474R3 relating to Option Aircraft.

2020 Option Aircraft will have the meaning specified in Letter Agreement Number LA-1106474R3 relating to Option Aircraft.

Program Aircraft means (i) each firm and exercised Option Aircraft in Table 1 of the Purchase Agreement as of the date of this Letter Agreement that are scheduled

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 1
BOEING PROPRIETARY

---

for delivery after January 1, 2024, (ii) each of the (100) 737-7 firm Aircraft, (iii) each exercised Original Option Aircraft, and (iv) each exercised 2020 Option Aircraft.

[***]

2.Applicability.

2.1    [***]

2.2    [***]

3.[***]

4.[***]

5.[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

6.[***]

7.Assignment.

Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer becoming the operator of the Aircraft and cannot be assigned, in whole or in part, without the prior written consent of Boeing.

8.Confidentiality.

The information contained herein represents confidential business information and has value precisely because it is not available generally or to other parties. Customer will limit the disclosure of its contents to employees of Customer with a need to know the contents for purposes of helping Customer perform its obligations under the Purchase Agreement and who understand they are not to disclose its contents to any other person or entity without the prior written consent of Boeing.

ACCEPTED AND AGREED TO this

Date:

March 24, 2021

southwest airlines co.

THE BOEING COMPANY

By:

/s/ Michael Van de Ven

By:

/s/ Carson J May

Name:

Michael Van de Ven

Name:

Carson J May

Title:

Chief Operating Officer

Title:

Attorney-In-Fact

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

ATTACHMENT A
[***]

[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]
[***]			[***]			[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

ATTACHMENT B-1 : [***]
[***]
[***]

[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]

SWA-PA-03729-LA-2100814						SA-12
[***]						Page 5
			BOEING PROPRIETARY

---

[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 6
BOEING PROPRIETARY

---

[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 7
BOEING PROPRIETARY

---

ATTACHMENT B-2: [***]
[***]
[***]

[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 8
BOEING PROPRIETARY

---

[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 9
BOEING PROPRIETARY

---

[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 10
BOEING PROPRIETARY

---

[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]
[***]			[***]

SWA-PA-03729-LA-2100814			SA-12
[***]			Page 11
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100819

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft (Aircraft)

2)    Letter Agreement No. SWA-PA-03729-LA-1301170R3, [***]

3)    Letter Agreement No. SWA-PA-03729-LA-2100812, [***]

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.[***]

SWA-PA-03729-LA-2100819			SA-12
[***]			Page 1
BOEING PROPRIETARY

---

2.Assignment.

Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Aircraft and cannot be assigned in whole or, in part.

3.Confidential Treatment.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-2100819			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-2100819			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

SWA-PA-03729-LA-2100825

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and 737-7 aircraft (Aircraft)

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.[***]

SWA-PA-03729-LA-2100825			SA-12
[***]			Page 1
BOEING PROPRIETARY

---

2.Assignment.

Notwithstanding any other provisions of the Purchase Agreement, the rights and obligations described in this Letter Agreement are provided to Customer in consideration of Customer’s becoming the operator of the Aircraft and cannot be assigned in whole or, in part.

3.Confidential Treatment.

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-2100825			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chiefs Operating Officer

SWA-PA-03729-LA-2100825			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100841

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

Reference:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and Model 737-7 aircraft

2)    Letter Agreement SWA-PA-03729-LA-2100594 entitled “737-8 Remarket Aircraft”    (Remarket Aircraft Letter Agreement)

3)     Letter Agreement SWA-PA-03729-LA-1106474R3 entitled “Option Aircraft”

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.[***]

SWA-PA-03729-LA-2100841			SA-12
[***]			Page 1
BOEING PROPRIETARY

---

SWA-PA-03729-LA-2100841			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

2.[***]

SWA-PA-03729-LA-2100841			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

3.[***]

4.Assignment.

Unless otherwise noted herein, [***] described in this Letter Agreement are provided [***] to Customer and in consideration of Customer’s taking title to the 737-8 Aircraft at time of delivery and becoming the operator of such 737-8 Aircraft. This Letter Agreement cannot be assigned, in whole or in part, without the prior written consent of Boeing.

5.Confidentiality

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties.  Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental

SWA-PA-03729-LA-2100841			SA-12
[***]			Page 4
BOEING PROPRIETARY

---

regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

Very truly yours,

THE BOEING COMPANY
By						/s/ Carson J May
Name						Carson J May
Its						Attorney-In-Fact
ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-2100841			SA-12
[***]			Page 5
BOEING PROPRIETARY

---

			The Boeing Company P.O. Box 3707 Seattle, WA 98124 2207

SWA-PA-03729-LA-2100984

Southwest Airlines Co.

2702 Love Field Drive

P.O. Box 36611

Dallas, Texas 75235-1611

Subject:    [***]

References:    1)    Purchase Agreement No. PA-03729 (Purchase Agreement) between The Boeing Company (Boeing) and Southwest Airlines Co. (Customer) relating to Model 737-8 and Model 737-7 aircraft

2)    Letter Agreement SWA-PA-03729-LA-1106471 entitled “Substitute Aircraft” (Substitution Letter)

This letter agreement (Letter Agreement) amends and supplements the Purchase Agreement. All terms used but not defined in this Letter Agreement shall have the same meaning as in the Purchase Agreement.

1.[***]

SWA-PA-03729-LA-2100984			SA-12
			Page 1
BOEING PROPRIETARY

---

SWA-PA-03729-LA-2100984			SA-12
[***]			Page 2
BOEING PROPRIETARY

---

2.[***].

3.Assignment.

Unless otherwise noted herein, [***] described in this Letter Agreement are provided [***] to Customer and in consideration of [***]. This Letter Agreement cannot be assigned, in whole or in part, without the prior written consent of Boeing.

4.Confidentiality

Customer understands that certain commercial and financial information contained in this Letter Agreement is considered by Boeing as confidential and has value precisely because it is not available generally to other parties. Customer agrees to limit the disclosure of the contents of this Letter Agreement to (a) its directors and officers, (b) employees of Customer with a need to know the contents for performing its obligations (including, without limitation, those employees performing accounting, finance, administration and other functions necessary to finance and purchase, deliver or lease the Aircraft) and who understand they are not to disclose its contents to any other person or entity (other than those to whom disclosure is permitted by this Article) without the prior written consent of Boeing and (c) any auditors and attorneys of Customer who have a need to know such information and have signed a confidentiality agreement in the same form and substance similar to this Article, or are otherwise bound by a confidentiality obligation. Disclosure to other parties is not permitted without Boeing’s consent except as may be required by applicable law or governmental regulations. Customer shall be fully responsible to Boeing for compliance with such obligations.

SWA-PA-03729-LA-2100984			SA-12
[***]			Page 3
BOEING PROPRIETARY

---

Very truly yours,

THE BOEING COMPANY
By			/s/ Carson J May
Name			Carson J May
Its			Attorney-In-Fact

ACCEPTED AND AGREED TO this
Date:			March 24 , 2021
SOUTHWEST AIRLINES CO.
By						/s/ Michael Van de Ven
Name						Michael Van de Ven
Its						Chief Operating Officer

SWA-PA-03729-LA-2100984			SA-12
[***]			Page 4
BOEING PROPRIETARY