Southwest Airlines flight WN 3957: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:30 Palm Springs (PSP) 06:35 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:05 Effective 2026-04-09 through 2026-06-01
Sat 05:40 Palm Springs (PSP) 06:45 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:05 Effective 2026-04-11 through 2026-05-30
Sun 05:40 Palm Springs (PSP) 06:45 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-04-12 through 2026-05-17
Sun 05:40 Palm Springs (PSP) 06:45 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Operates only on 2026-05-31
Tue,Wed 06:10 Palm Springs (PSP) 07:10 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:00 Effective 2026-04-07 through 2026-06-03
Sun 06:30 Palm Springs (PSP) 07:40 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Operates only on 2026-05-24
Sat 07:45 Sacramento (SMF) B 11:25 Kahului (OGG) WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 5:40 Operates only on 2026-03-07
Sat,Sun 07:45 Sacramento (SMF) B 10:25 Kahului (OGG) WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 5:40 Effective 2026-03-08 through 2026-04-05
Sun 10:45 Denver (DEN) 15:10 Grand Rapids (GRR) WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-08-09 through 2026-09-27
Sat 12:00 Denver (DEN) 16:30 Grand Rapids (GRR) WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-08-08 through 2026-09-26
Mon 17:55 Oklahoma City (OKC) 19:25 Saint Louis (STL) 2 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-01-05
Fri,Sun 18:20 Oklahoma City (OKC) 19:45 Saint Louis (STL) 2 WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-01-02 through 2026-01-04
Sat 18:25 Oklahoma City (OKC) 19:50 Saint Louis (STL) 2 WN 3957 Non-stop Boeing 737-800 (73H) 1:25 Valid until 2026-01-03
Sat 18:50 San Diego (SAN) 1 20:15 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 19:05 San Diego (SAN) 1 20:30 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 19:05 San Diego (SAN) 1 20:30 Las Vegas Harry Reid (LAS) 1 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-02-20 through 2026-03-01
Mon,Thu,Fri 20:00 Ontario, Los Angeles (ONT) 4 21:15 Oakland (OAK) 2 WN 3957 Non-stop Boeing 737-800 (73H) 1:15 Effective 2026-08-06 through 2026-09-28
Sat 20:50 Saint Louis (STL) 2 21:55 Chicago Midway (MDW) WN 3957 Non-stop Boeing 737-800 (73H) 1:05 Effective 2026-06-06 through 2026-08-01
Sat 21:05 Las Vegas Harry Reid (LAS) 1 23:55 Seattle-Tacoma (SEA) WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 21:10 Las Vegas Harry Reid (LAS) 1 22:50 Oakland (OAK) 2 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 21:10 Las Vegas Harry Reid (LAS) 1 22:50 Oakland (OAK) 2 WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2026-02-20 through 2026-03-01
Tue,Wed 21:30 Saint Louis (STL) 2 22:35 Chicago Midway (MDW) WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:05 Effective 2026-06-09 through 2026-07-29
Sun 21:45 Saint Louis (STL) 2 22:50 Chicago Midway (MDW) WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 21:55 Saint Louis (STL) 2 23:00 Chicago Midway (MDW) WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-06-04 through 2026-08-03
Non-Direct Flights:
Sat 18:50 San Diego (SAN) 1 23:55 Seattle-Tacoma (SEA) WN 3957 1-stop Boeing 737-700 (Scimitar Winglets) 5:05 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 19:05 San Diego (SAN) 1 22:50 Oakland (OAK) 2 WN 3957 1-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 19:05 San Diego (SAN) 1 22:50 Oakland (OAK) 2 WN 3957 1-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-02-20 through 2026-03-01

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This flight number is listed as serving the following routes:

Denver (DEN) - Grand Rapids (GRR)
Las Vegas Harry Reid (LAS) - Oakland (OAK)
Las Vegas Harry Reid (LAS) - Seattle-Tacoma (SEA)
Oklahoma City (OKC) - Saint Louis (STL)
Ontario, Los Angeles (ONT) - Oakland (OAK)
Palm Springs (PSP) - Las Vegas Harry Reid (LAS)
Sacramento (SMF) - Kahului (OGG)
Saint Louis (STL) - Chicago Midway (MDW)
San Diego (SAN) - Las Vegas Harry Reid (LAS)
San Diego (SAN) - Oakland (OAK)
San Diego (SAN) - Seattle-Tacoma (SEA)

All Southwest Airlines flights

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Southwest Airlines flight WN 3957: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3957

05:30

Palm Springs (PSP)

06:35

Las Vegas Harry Reid (LAS) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3957

05:40

Palm Springs (PSP)

06:45

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3957

05:40

Palm Springs (PSP)

06:45

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3957

05:40

Palm Springs (PSP)

06:45

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3957

06:10

Palm Springs (PSP)

07:10

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3957

06:30

Palm Springs (PSP)

07:40

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3957

07:45

Sacramento (SMF) B

11:25

Kahului (OGG)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3957

07:45

Sacramento (SMF) B

10:25

Kahului (OGG)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 5:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3957

10:45

Denver (DEN)

15:10

Grand Rapids (GRR)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3957

12:00

Denver (DEN)

16:30

Grand Rapids (GRR)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3957

17:55

Oklahoma City (OKC)

19:25

Saint Louis (STL) 2

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3957

18:20

Oklahoma City (OKC)

19:45

Saint Louis (STL) 2

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3957

18:25

Oklahoma City (OKC)

19:50

Saint Louis (STL) 2

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3957

18:50

San Diego (SAN) 1

20:15

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3957

19:05

San Diego (SAN) 1

20:30

Las Vegas Harry Reid (LAS) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3957

19:05

San Diego (SAN) 1

20:30

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3957

20:00

Ontario, Los Angeles (ONT) 4

21:15

Oakland (OAK) 2

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3957

20:50

Saint Louis (STL) 2

21:55

Chicago Midway (MDW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3957

21:05

Las Vegas Harry Reid (LAS) 1

23:55

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3957

21:10

Las Vegas Harry Reid (LAS) 1

22:50

Oakland (OAK) 2

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3957

21:10

Las Vegas Harry Reid (LAS) 1

22:50

Oakland (OAK) 2

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3957

21:30

Saint Louis (STL) 2

22:35

Chicago Midway (MDW)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3957

21:45

Saint Louis (STL) 2

22:50

Chicago Midway (MDW)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3957

21:55

Saint Louis (STL) 2

23:00

Chicago Midway (MDW)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3957

18:50

San Diego (SAN) 1

23:55

Seattle-Tacoma (SEA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3957

19:05

San Diego (SAN) 1

22:50

Oakland (OAK) 2

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Non-Direct Flights:

Southwest Airlines WN3957

19:05

San Diego (SAN) 1

22:50

Oakland (OAK) 2

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

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:

Denver (DEN) - Grand Rapids (GRR)
Las Vegas Harry Reid (LAS) - Oakland (OAK)
Las Vegas Harry Reid (LAS) - Seattle-Tacoma (SEA)
Oklahoma City (OKC) - Saint Louis (STL)
Ontario, Los Angeles (ONT) - Oakland (OAK)
Palm Springs (PSP) - Las Vegas Harry Reid (LAS)
Sacramento (SMF) - Kahului (OGG)
Saint Louis (STL) - Chicago Midway (MDW)
San Diego (SAN) - Las Vegas Harry Reid (LAS)
San Diego (SAN) - Oakland (OAK)
San Diego (SAN) - Seattle-Tacoma (SEA)

All Southwest Airlines flights

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