Southwest Airlines flight WN 437: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sun 06:30 Milwaukee (MKE) 08:20 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 3:50 Operates only on 2026-05-24
Mon,Thu,Fri 06:50 Buffalo (BUF) 08:15 Denver (DEN) WN 437 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2026-08-06 through 2026-09-28
Mon,Thu,Fri 08:45 Orlando (MCO) 10:45 Austin (AUS) WN 437 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-03-05 through 2026-04-06
Tue,Wed 09:15 Orlando (MCO) 11:20 Austin (AUS) WN 437 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2026-03-10 through 2026-04-01
Sun 09:25 Orlando (MCO) 11:30 Austin (AUS) WN 437 Non-stop Boeing 737-800 (73H) 3:05 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 10:00 Birmingham (BHM) 12:25 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 10:00 Birmingham (BHM) 12:25 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 10:10 Birmingham (BHM) 12:35 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-01-11 through 2026-01-16
Mon,Sun 10:10 Birmingham (BHM) 12:35 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 10:10 Birmingham (BHM) 12:35 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-02-01 through 2026-02-06
Mon,Sun 10:10 Birmingham (BHM) 12:35 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 10:10 Birmingham (BHM) 12:35 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Effective 2026-02-17 through 2026-02-23
Mon 10:10 Birmingham (BHM) 12:35 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-800 (73H) 4:25 Operates only on 2026-03-02
Mon,Thu,Fri 11:15 Los Angeles (LAX) 1 16:05 Austin (AUS) WN 437 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-04-09 through 2026-06-01
Sun 12:10 Los Angeles (LAX) 1 17:00 Austin (AUS) WN 437 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-04-12 through 2026-05-17
Sun 12:10 Los Angeles (LAX) 1 17:00 Austin (AUS) WN 437 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Operates only on 2026-05-31
Tue,Wed 12:55 Los Angeles (LAX) 1 17:45 Austin (AUS) WN 437 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-04-07 through 2026-06-03
Tue,Wed 14:00 Houston Hobby (HOU) 15:45 Birmingham (BHM) WN 437 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 14:45 Houston Hobby (HOU) 16:30 Birmingham (BHM) WN 437 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-06-04 through 2026-08-03
Tue,Wed 15:05 Hartford (BDL) 16:30 Baltimore (BWI) WN 437 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-08-04 through 2026-09-30
Sat 15:20 Hartford (BDL) 16:45 Baltimore (BWI) WN 437 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-08-08 through 2026-09-26
Sat 15:55 Birmingham (BHM) 18:20 Las Vegas Harry Reid (LAS) 1 WN 437 Non-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2026-02-14 through 2026-02-28
Tue,Wed 16:25 Birmingham (BHM) 18:55 Tampa (TPA) WN 437 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-06-09 through 2026-07-29
Thu 16:30 Ronald Reagan Washington (DCA) 1 19:15 Austin (AUS) WN 437 Non-stop Boeing 737-800 (73H) 3:45 Valid until 2026-01-01
Sun 16:50 Hartford (BDL) 18:15 Baltimore (BWI) WN 437 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 17:10 Birmingham (BHM) 19:00 Denver (DEN) WN 437 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-06-04 through 2026-08-03
Mon,Tue,Fri,Sun 17:45 Austin (AUS) 18:55 San Diego (SAN) 1 WN 437 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Valid until 2026-01-04
Mon 18:35 Austin (AUS) 19:45 San Diego (SAN) 1 WN 437 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Operates only on 2026-01-05
Sat 19:05 Las Vegas Harry Reid (LAS) 1 20:05 Ontario, Los Angeles (ONT) 4 WN 437 Non-stop Boeing 737-700 (Scimitar Winglets) 1:00 Effective 2026-02-14 through 2026-02-28
Sun 19:15 Boise (BOI) 20:25 San Diego (SAN) 1 WN 437 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-06-07 through 2026-08-02
Wed,Thu 19:55 Austin (AUS) 21:05 San Diego (SAN) 1 WN 437 Non-stop Boeing 737-800 (73H) 3:10 Valid until 2026-01-01
Sat 21:10 Austin (AUS) 22:20 San Diego (SAN) 1 WN 437 Non-stop Boeing 737-800 (73H) 3:10 Valid until 2026-01-03
Non-Direct Flights:
Tue,Wed 14:00 Houston Hobby (HOU) 18:55 Tampa (TPA) WN 437 1-stop Boeing 737 MAX 8 (7M8) 3:55 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 14:45 Houston Hobby (HOU) 19:00 Denver (DEN) WN 437 1-stop Boeing 737-800 (73H) 5:15 Effective 2026-06-04 through 2026-08-03
Sat 15:55 Birmingham (BHM) 20:05 Ontario, Los Angeles (ONT) 4 WN 437 1-stop Boeing 737-700 (Scimitar Winglets) 6:10 Effective 2026-02-14 through 2026-02-28
Thu 16:30 Ronald Reagan Washington (DCA) 1 21:05 San Diego (SAN) 1 WN 437 1-stop Boeing 737-800 (73H) 7:35 Valid until 2026-01-01

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This flight number is listed as serving the following routes:

Austin (AUS) - San Diego (SAN)
Birmingham (BHM) - Denver (DEN)
Birmingham (BHM) - Las Vegas Harry Reid (LAS)
Birmingham (BHM) - Ontario, Los Angeles (ONT)
Birmingham (BHM) - Tampa (TPA)
Boise (BOI) - San Diego (SAN)
Buffalo (BUF) - Denver (DEN)
Hartford (BDL) - Baltimore (BWI)
Houston Hobby (HOU) - Birmingham (BHM)
Houston Hobby (HOU) - Denver (DEN)
Houston Hobby (HOU) - Tampa (TPA)
Las Vegas Harry Reid (LAS) - Ontario, Los Angeles (ONT)
Los Angeles (LAX) - Austin (AUS)
Milwaukee (MKE) - Las Vegas Harry Reid (LAS)
Orlando (MCO) - Austin (AUS)
Ronald Reagan Washington (DCA) - Austin (AUS)
Ronald Reagan Washington (DCA) - San Diego (SAN)

All Southwest Airlines flights

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Southwest Airlines flight WN 437: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN437

06:30

Milwaukee (MKE)

08:20

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

06:50

Buffalo (BUF)

08:15

Denver (DEN)

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

08:45

Orlando (MCO)

10:45

Austin (AUS)

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

09:15

Orlando (MCO)

11:20

Austin (AUS)

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

09:25

Orlando (MCO)

11:30

Austin (AUS)

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:00

Birmingham (BHM)

12:25

Las Vegas Harry Reid (LAS) 1

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:00

Birmingham (BHM)

12:25

Las Vegas Harry Reid (LAS) 1

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:10

Birmingham (BHM)

12:35

Las Vegas Harry Reid (LAS) 1

Effective 2026-01-11 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:10

Birmingham (BHM)

12:35

Las Vegas Harry Reid (LAS) 1

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:10

Birmingham (BHM)

12:35

Las Vegas Harry Reid (LAS) 1

Effective 2026-02-01 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:10

Birmingham (BHM)

12:35

Las Vegas Harry Reid (LAS) 1

Effective 2026-02-09 through 2026-02-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:10

Birmingham (BHM)

12:35

Las Vegas Harry Reid (LAS) 1

Effective 2026-02-17 through 2026-02-23

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

10:10

Birmingham (BHM)

12:35

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

11:15

Los Angeles (LAX) 1

16:05

Austin (AUS)

Effective 2026-04-09 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

12:10

Los Angeles (LAX) 1

17:00

Austin (AUS)

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN437

12:10

Los Angeles (LAX) 1

17:00

Austin (AUS)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN437

12:55

Los Angeles (LAX) 1

17:45

Austin (AUS)

Effective 2026-04-07 through 2026-06-03

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN437

14:00

Houston Hobby (HOU)

15:45

Birmingham (BHM)

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

14:45

Houston Hobby (HOU)

16:30

Birmingham (BHM)

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

15:05

Hartford (BDL)

16:30

Baltimore (BWI)

Effective 2026-08-04 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN437

15:20

Hartford (BDL)

16:45

Baltimore (BWI)

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

15:55

Birmingham (BHM)

18:20

Las Vegas Harry Reid (LAS) 1

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN437

16:25

Birmingham (BHM)

18:55

Tampa (TPA)

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

16:30

Ronald Reagan Washington (DCA) 1

19:15

Austin (AUS)

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

16:50

Hartford (BDL)

18:15

Baltimore (BWI)

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN437

17:10

Birmingham (BHM)

19:00

Denver (DEN)

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

17:45

Austin (AUS)

18:55

San Diego (SAN) 1

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

18:35

Austin (AUS)

19:45

San Diego (SAN) 1

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

19:05

Las Vegas Harry Reid (LAS) 1

20:05

Ontario, Los Angeles (ONT) 4

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN437

19:15

Boise (BOI)

20:25

San Diego (SAN) 1

Effective 2026-06-07 through 2026-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN437

19:55

Austin (AUS)

21:05

San Diego (SAN) 1

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN437

21:10

Austin (AUS)

22:20

San Diego (SAN) 1

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:10, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN437

14:00

Houston Hobby (HOU)

18:55

Tampa (TPA)

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:55, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN437

14:45

Houston Hobby (HOU)

19:00

Denver (DEN)

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 5:15, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN437

15:55

Birmingham (BHM)

20:05

Ontario, Los Angeles (ONT) 4

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 6:10, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN437

16:30

Ronald Reagan Washington (DCA) 1

21:05

San Diego (SAN) 1

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 7:35, 1-stop
Boeing 737-800 (73H)

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This flight number is listed as serving the following routes:

Austin (AUS) - San Diego (SAN)
Birmingham (BHM) - Denver (DEN)
Birmingham (BHM) - Las Vegas Harry Reid (LAS)
Birmingham (BHM) - Ontario, Los Angeles (ONT)
Birmingham (BHM) - Tampa (TPA)
Boise (BOI) - San Diego (SAN)
Buffalo (BUF) - Denver (DEN)
Hartford (BDL) - Baltimore (BWI)
Houston Hobby (HOU) - Birmingham (BHM)
Houston Hobby (HOU) - Denver (DEN)
Houston Hobby (HOU) - Tampa (TPA)
Las Vegas Harry Reid (LAS) - Ontario, Los Angeles (ONT)
Los Angeles (LAX) - Austin (AUS)
Milwaukee (MKE) - Las Vegas Harry Reid (LAS)
Orlando (MCO) - Austin (AUS)
Ronald Reagan Washington (DCA) - Austin (AUS)
Ronald Reagan Washington (DCA) - San Diego (SAN)

All Southwest Airlines flights

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