Southwest Airlines flight WN 3831: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Sat 07:05 Fort Myers (RSW) 08:50 Saint Louis (STL) 2 WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2026-01-03
Mon,Thu,Fri 07:05 Orlando (MCO) 08:15 Nashville (BNA) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-03-05 through 2026-04-06
Mon,Tue,Fri,Sun 07:30 Fort Myers (RSW) 09:10 Saint Louis (STL) 2 WN 3831 Non-stop Boeing 737-800 (73H) 2:40 Valid until 2026-01-04
Thu,Fri,Sun 07:50 Saint Louis (STL) 2 11:10 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-01-11 through 2026-01-16
Mon,Sun 07:50 Saint Louis (STL) 2 11:10 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 07:50 Saint Louis (STL) 2 11:10 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-02-01 through 2026-02-06
Mon,Sun 07:50 Saint Louis (STL) 2 11:10 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-02-09 through 2026-02-15
Sat 07:50 Saint Louis (STL) 2 11:10 Tampa (TPA) WN 3831 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-02-14 through 2026-02-28
Tue,Thu 07:50 Saint Louis (STL) 2 11:10 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-02-17 through 2026-02-19
Mon 07:50 Saint Louis (STL) 2 11:10 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-03-02
Sun 07:50 Phoenix Sky Harbor (PHX) 4 12:50 New Orleans (MSY) WN 3831 Non-stop Boeing 737-800 (73H) 3:00 Effective 2026-04-12 through 2026-05-17
Sun 07:50 Phoenix Sky Harbor (PHX) 4 12:50 New Orleans (MSY) WN 3831 Non-stop Boeing 737-800 (73H) 3:00 Operates only on 2026-05-31
Mon 07:55 Saint Louis (STL) 2 11:15 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-02-23
Mon,Thu,Fri 08:00 Saint Louis (STL) 2 11:20 Tampa (TPA) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 08:00 Saint Louis (STL) 2 11:20 Tampa (TPA) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-02-20 through 2026-03-01
Sat 08:10 Phoenix Sky Harbor (PHX) 4 13:15 New Orleans (MSY) WN 3831 Non-stop Boeing 737-800 (73H) 3:05 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 08:30 Phoenix Sky Harbor (PHX) 4 13:25 New Orleans (MSY) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-04-09 through 2026-06-01
Sat 08:50 Saint Louis (STL) 2 12:10 Tampa (TPA) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-01-10 through 2026-02-07
Sat 10:40 Orlando (MCO) 11:50 Nashville (BNA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-03-07 through 2026-04-04
Sun 11:20 Orlando (MCO) 12:30 Nashville (BNA) WN 3831 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-03-08 through 2026-04-05
Sat 11:30 Sacramento (SMF) B 13:00 Santa Ana (SNA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-06-06 through 2026-08-01
Tue,Wed 11:40 Phoenix Sky Harbor (PHX) 4 16:30 New Orleans (MSY) WN 3831 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-04-07 through 2026-06-03
Tue,Wed 11:45 Austin (AUS) 13:40 San Francisco (SFO) 2 WN 3831 Non-stop Boeing 737-800 (73H) 3:55 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 11:50 Sacramento (SMF) B 13:20 Santa Ana (SNA) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-06-04 through 2026-08-03
Sun 12:30 Sacramento (SMF) B 13:55 Santa Ana (SNA) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-06-07 through 2026-08-02
Mon-Fri 13:30 Saint Louis (STL) 2 16:45 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 13:30 Saint Louis (STL) 2 16:45 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-18 through 2026-01-23
Mon-Fri 13:30 Saint Louis (STL) 2 16:45 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-01-26 through 2026-02-04
Sun 13:30 Saint Louis (STL) 2 16:45 Tampa (TPA) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Operates only on 2026-02-08
Tue,Wed 13:30 Saint Louis (STL) 2 16:45 Tampa (TPA) WN 3831 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-02-10 through 2026-02-11
Tue,Wed 13:30 Saint Louis (STL) 2 16:45 Tampa (TPA) WN 3831 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-02-18 through 2026-03-04
Mon,Thu,Fri 16:35 Saint Louis (STL) 2 17:50 Denver (DEN) WN 3831 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-08-06 through 2026-09-28
Sun 17:55 Saint Louis (STL) 2 19:10 Denver (DEN) WN 3831 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-08-09 through 2026-09-27
Tue,Wed 18:20 Saint Louis (STL) 2 19:35 Denver (DEN) WN 3831 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-08-04 through 2026-09-30

This flight number is listed as serving the following routes:

Austin (AUS) - San Francisco (SFO)
Fort Myers (RSW) - Saint Louis (STL)
Orlando (MCO) - Nashville (BNA)
Phoenix Sky Harbor (PHX) - New Orleans (MSY)
Sacramento (SMF) - Santa Ana (SNA)
Saint Louis (STL) - Denver (DEN)
Saint Louis (STL) - Tampa (TPA)

All Southwest Airlines flights

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Southwest Airlines flight WN 3831: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3831

07:05

Fort Myers (RSW)

08:50

Saint Louis (STL) 2

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3831

07:05

Orlando (MCO)

08:15

Nashville (BNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3831

07:30

Fort Myers (RSW)

09:10

Saint Louis (STL) 2

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

07:50

Saint Louis (STL) 2

11:10

Tampa (TPA)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

07:50

Saint Louis (STL) 2

11:10

Tampa (TPA)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

07:50

Saint Louis (STL) 2

11:10

Tampa (TPA)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

07:50

Saint Louis (STL) 2

11:10

Tampa (TPA)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

07:50

Saint Louis (STL) 2

11:10

Tampa (TPA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

07:50

Saint Louis (STL) 2

11:10

Tampa (TPA)

Effective 2026-02-17 through 2026-02-19

Mon
-

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

07:50

Saint Louis (STL) 2

11:10

Tampa (TPA)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

07:50

Phoenix Sky Harbor (PHX) 4

12:50

New Orleans (MSY)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

07:50

Phoenix Sky Harbor (PHX) 4

12:50

New Orleans (MSY)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

07:55

Saint Louis (STL) 2

11:15

Tampa (TPA)

Operates only on 2026-02-23

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

08:00

Saint Louis (STL) 2

11:20

Tampa (TPA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3831

08:00

Saint Louis (STL) 2

11:20

Tampa (TPA)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3831

08:10

Phoenix Sky Harbor (PHX) 4

13:15

New Orleans (MSY)

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3831

08:30

Phoenix Sky Harbor (PHX) 4

13:25

New Orleans (MSY)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3831

08:50

Saint Louis (STL) 2

12:10

Tampa (TPA)

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3831

10:40

Orlando (MCO)

11:50

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

11:20

Orlando (MCO)

12:30

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

11:30

Sacramento (SMF) B

13:00

Santa Ana (SNA)

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

11:40

Phoenix Sky Harbor (PHX) 4

16:30

New Orleans (MSY)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3831

11:45

Austin (AUS)

13:40

San Francisco (SFO) 2

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

11:50

Sacramento (SMF) B

13:20

Santa Ana (SNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3831

12:30

Sacramento (SMF) B

13:55

Santa Ana (SNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3831

13:30

Saint Louis (STL) 2

16:45

Tampa (TPA)

Effective 2026-01-06 through 2026-01-14

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

13:30

Saint Louis (STL) 2

16:45

Tampa (TPA)

Effective 2026-01-18 through 2026-01-23

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

13:30

Saint Louis (STL) 2

16:45

Tampa (TPA)

Effective 2026-01-26 through 2026-02-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

13:30

Saint Louis (STL) 2

16:45

Tampa (TPA)

Operates only on 2026-02-08

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

13:30

Saint Louis (STL) 2

16:45

Tampa (TPA)

Effective 2026-02-10 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

13:30

Saint Louis (STL) 2

16:45

Tampa (TPA)

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

16:35

Saint Louis (STL) 2

17:50

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3831

17:55

Saint Louis (STL) 2

19:10

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3831

18:20

Saint Louis (STL) 2

19:35

Denver (DEN)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

This flight number is listed as serving the following routes:

Austin (AUS) - San Francisco (SFO)
Fort Myers (RSW) - Saint Louis (STL)
Orlando (MCO) - Nashville (BNA)
Phoenix Sky Harbor (PHX) - New Orleans (MSY)
Sacramento (SMF) - Santa Ana (SNA)
Saint Louis (STL) - Denver (DEN)
Saint Louis (STL) - Tampa (TPA)

All Southwest Airlines flights

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