Southwest Airlines flight WN 3813: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 13:40 Saint Louis (STL) 2 16:40 Baltimore (BWI) WN 3813 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-08-04 through 2026-09-30
Sat 14:55 Saint Louis (STL) 2 17:55 Baltimore (BWI) WN 3813 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 16:00 Milwaukee (MKE) 17:25 Kansas City (MCI) WN 3813 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-08-06 through 2026-09-28
Sun 16:25 Saint Louis (STL) 2 19:25 Baltimore (BWI) WN 3813 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-08-09 through 2026-09-27
Sat 17:00 Salt Lake City (SLC) 17:45 Phoenix Sky Harbor (PHX) 4 WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-04-11 through 2026-05-30
Tue,Wed 17:40 Sacramento (SMF) B 19:10 Portland (PDX) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 17:45 Sacramento (SMF) B 19:15 Portland (PDX) WN 3813 Non-stop Boeing 737-800 (73H) 1:30 Effective 2026-06-04 through 2026-08-03
Sat 18:25 Phoenix Sky Harbor (PHX) 4 19:45 Long Beach (LGB) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 18:45 Phoenix Sky Harbor (PHX) 4 20:00 Long Beach (LGB) WN 3813 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-09 through 2026-06-01
Sun 19:00 Sacramento (SMF) B 20:30 Portland (PDX) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-06-07 through 2026-08-02
Tue,Wed 19:35 Phoenix Sky Harbor (PHX) 4 20:55 Long Beach (LGB) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-04-07 through 2026-06-03
Sun 19:50 Phoenix Sky Harbor (PHX) 4 21:10 Long Beach (LGB) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-04-12 through 2026-05-17
Sun 19:50 Phoenix Sky Harbor (PHX) 4 21:10 Long Beach (LGB) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Operates only on 2026-05-31
Mon-Fri 19:55 Saint Louis (STL) 2 21:35 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 19:55 Saint Louis (STL) 2 21:35 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-01-18 through 2026-01-23
Mon-Fri 19:55 Saint Louis (STL) 2 21:35 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 19:55 Saint Louis (STL) 2 21:35 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-08 through 2026-02-11
Tue,Wed 19:55 Saint Louis (STL) 2 21:35 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-18 through 2026-03-04
Sun 20:00 Kansas City (MCI) 23:40 Orlando (MCO) WN 3813 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 20:05 Kansas City (MCI) 23:45 Orlando (MCO) WN 3813 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-03-05 through 2026-04-06
Thu,Fri,Sun 20:45 Saint Louis (STL) 2 22:25 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-01-11 through 2026-01-16
Mon,Sun 20:45 Saint Louis (STL) 2 22:25 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 20:45 Saint Louis (STL) 2 22:25 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-02-01 through 2026-02-06
Mon,Sat,Sun 20:45 Saint Louis (STL) 2 22:25 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu,Sat 20:45 Saint Louis (STL) 2 22:25 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-02-17 through 2026-02-23
Mon,Sat 20:45 Saint Louis (STL) 2 22:25 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-02-28 through 2026-03-02
Mon,Thu,Fri 22:50 Saint Louis (STL) 2 00:35 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-02-12 through 2026-02-16 The flight arrives 1 day after departure.
Thu,Fri,Sun 22:50 Saint Louis (STL) 2 00:35 Oklahoma City (OKC) WN 3813 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-02-20 through 2026-03-01 The flight arrives 1 day after departure.
Non-Direct Flights:
Sat 17:00 Salt Lake City (SLC) 19:45 Long Beach (LGB) WN 3813 1-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-04-11 through 2026-05-30

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This flight number is listed as serving the following routes:

Kansas City (MCI) - Orlando (MCO)
Milwaukee (MKE) - Kansas City (MCI)
Phoenix Sky Harbor (PHX) - Long Beach (LGB)
Sacramento (SMF) - Portland (PDX)
Saint Louis (STL) - Baltimore (BWI)
Saint Louis (STL) - Oklahoma City (OKC)
Salt Lake City (SLC) - Long Beach (LGB)
Salt Lake City (SLC) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

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Southwest Airlines flight WN 3813: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3813

13:40

Saint Louis (STL) 2

16:40

Baltimore (BWI)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

14:55

Saint Louis (STL) 2

17:55

Baltimore (BWI)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

16:00

Milwaukee (MKE)

17:25

Kansas City (MCI)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3813

16:25

Saint Louis (STL) 2

19:25

Baltimore (BWI)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3813

17:00

Salt Lake City (SLC)

17:45

Phoenix Sky Harbor (PHX) 4

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3813

17:40

Sacramento (SMF) B

19:10

Portland (PDX)

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 WN3813

17:45

Sacramento (SMF) B

19:15

Portland (PDX)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

18:25

Phoenix Sky Harbor (PHX) 4

19:45

Long Beach (LGB)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

18:45

Phoenix Sky Harbor (PHX) 4

20:00

Long Beach (LGB)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3813

19:00

Sacramento (SMF) B

20:30

Portland (PDX)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3813

19:35

Phoenix Sky Harbor (PHX) 4

20:55

Long Beach (LGB)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

19:50

Phoenix Sky Harbor (PHX) 4

21:10

Long Beach (LGB)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

19:50

Phoenix Sky Harbor (PHX) 4

21:10

Long Beach (LGB)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

19:55

Saint Louis (STL) 2

21:35

Oklahoma City (OKC)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

19:55

Saint Louis (STL) 2

21:35

Oklahoma City (OKC)

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

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

19:55

Saint Louis (STL) 2

21:35

Oklahoma City (OKC)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

19:55

Saint Louis (STL) 2

21:35

Oklahoma City (OKC)

Effective 2026-02-08 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

19:55

Saint Louis (STL) 2

21:35

Oklahoma City (OKC)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

20:00

Kansas City (MCI)

23:40

Orlando (MCO)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3813

20:05

Kansas City (MCI)

23:45

Orlando (MCO)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3813

20:45

Saint Louis (STL) 2

22:25

Oklahoma City (OKC)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

20:45

Saint Louis (STL) 2

22:25

Oklahoma City (OKC)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

20:45

Saint Louis (STL) 2

22:25

Oklahoma City (OKC)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

20:45

Saint Louis (STL) 2

22:25

Oklahoma City (OKC)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 1:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

20:45

Saint Louis (STL) 2

22:25

Oklahoma City (OKC)

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat

Sun
-

Duration: 1:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

20:45

Saint Louis (STL) 2

22:25

Oklahoma City (OKC)

Effective 2026-02-28 through 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3813

22:50

Saint Louis (STL) 2

00:35(+1)

Oklahoma City (OKC)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3813

22:50

Saint Louis (STL) 2

00:35(+1)

Oklahoma City (OKC)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Non-Direct Flights:

Southwest Airlines WN3813

17:00

Salt Lake City (SLC)

19:45

Long Beach (LGB)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:45, 1-stop
Boeing 737 MAX 8 (7M8)

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Parallax here

This flight number is listed as serving the following routes:

Kansas City (MCI) - Orlando (MCO)
Milwaukee (MKE) - Kansas City (MCI)
Phoenix Sky Harbor (PHX) - Long Beach (LGB)
Sacramento (SMF) - Portland (PDX)
Saint Louis (STL) - Baltimore (BWI)
Saint Louis (STL) - Oklahoma City (OKC)
Salt Lake City (SLC) - Long Beach (LGB)
Salt Lake City (SLC) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

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- CACHE: False - LANG: en - IS_EU: False