Southwest Airlines flight WN 3957: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 06:45 Ontario, Los Angeles (ONT) 4 08:05 San Jose (SJC) B
WN 3957 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-08-10 through 2025-08-24
Sun 06:45 Ontario, Los Angeles (ONT) 4 08:05 San Jose (SJC) B
WN 3957 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-09-07 through 2025-09-28
Mon,Thu,Fri 06:50 Ontario, Los Angeles (ONT) 4 08:10 San Jose (SJC) B
WN 3957 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-08-07 through 2025-09-29
Sat 08:15 Ontario, Los Angeles (ONT) 4 09:30 San Jose (SJC) B
WN 3957 Non-stop Boeing 737-700 (73W) 1:15 Effective 2025-08-09 through 2025-09-27
Fri 08:40 Las Vegas Harry Reid (LAS) 1 10:15 Oakland (OAK) 2
WN 3957 Non-stop Boeing 737-800 (73H) 1:35 Operates only on 2025-07-04
Tue,Wed 09:25 Ontario, Los Angeles (ONT) 4 10:40 San Jose (SJC) B
WN 3957 Non-stop Boeing 737-700 (73W) 1:15 Effective 2025-08-05 through 2025-10-01
Sun 13:45 Las Vegas Harry Reid (LAS) 1 18:05 Oklahoma City (OKC)
WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2025-11-30
Tue,Wed 15:30 Phoenix Sky Harbor (PHX) 4 16:55 Los Angeles (LAX) 1
WN 3957 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-06-10 through 2025-07-30
Tue,Wed 17:30 Los Angeles (LAX) 1 18:55 Reno (RNO)
WN 3957 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-06-10 through 2025-07-30
Mon,Thu,Fri,Sun 17:55 Oklahoma City (OKC) 19:25 Saint Louis (STL) 2
WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 17:55 Oklahoma City (OKC) 19:25 Saint Louis (STL) 2
WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-11-21 through 2025-11-28
Fri,Sun 17:55 Oklahoma City (OKC) 19:25 Saint Louis (STL) 2
WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-12-07 through 2025-12-14
Thu 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 2025-12-18
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
Mon-Wed 18:20 Oklahoma City (OKC) 19:45 Saint Louis (STL) 2
WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 18:20 Oklahoma City (OKC) 19:45 Saint Louis (STL) 2
WN 3957 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-12-19 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 Effective 2025-11-22 through 2025-11-29
Sat 18:25 Oklahoma City (OKC) 19:50 Saint Louis (STL) 2
WN 3957 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-12-20 through 2026-01-03
Sun 18:40 Oklahoma City (OKC) 20:05 Saint Louis (STL) 2
WN 3957 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2025-11-30
Sun 22:45 Phoenix Sky Harbor (PHX) 4 00:10 Los Angeles (LAX) 1
WN 3957 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-06-08 through 2025-08-03
The flight arrives 1 day after departure.
Non-Direct Flights:
Sun 13:45 Las Vegas Harry Reid (LAS) 1 20:05 Saint Louis (STL) 2
WN 3957 1-stop Boeing 737-700 (Scimitar Winglets) 4:20 Operates only on 2025-11-30
Tue,Wed 15:30 Phoenix Sky Harbor (PHX) 4 18:55 Reno (RNO)
WN 3957 1-stop Boeing 737-700 (73W) 3:25 Effective 2025-06-10 through 2025-07-30
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3957: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3957
06:45
Ontario, Los Angeles (ONT) 4

08:05
San Jose (SJC) B
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3957
06:45
Ontario, Los Angeles (ONT) 4

08:05
San Jose (SJC) B
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3957
06:50
Ontario, Los Angeles (ONT) 4

08:10
San Jose (SJC) B
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3957
08:15
Ontario, Los Angeles (ONT) 4

09:30
San Jose (SJC) B
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3957
08:40
Las Vegas Harry Reid (LAS) 1

10:15
Oakland (OAK) 2
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3957
09:25
Ontario, Los Angeles (ONT) 4

10:40
San Jose (SJC) B
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3957
13:45
Las Vegas Harry Reid (LAS) 1

18:05
Oklahoma City (OKC)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3957
15:30
Phoenix Sky Harbor (PHX) 4

16:55
Los Angeles (LAX) 1
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3957
17:30
Los Angeles (LAX) 1

18:55
Reno (RNO)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3957
17:55
Oklahoma City (OKC)

19:25
Saint Louis (STL) 2
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3957
17:55
Oklahoma City (OKC)

19:25
Saint Louis (STL) 2
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3957
17:55
Oklahoma City (OKC)

19:25
Saint Louis (STL) 2
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3957
17:55
Oklahoma City (OKC)

19:25
Saint Louis (STL) 2
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
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)
Southwest Airlines WN3957
18:20
Oklahoma City (OKC)

19:45
Saint Louis (STL) 2
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3957
18:20
Oklahoma City (OKC)

19:45
Saint Louis (STL) 2
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3957
18:25
Oklahoma City (OKC)

19:50
Saint Louis (STL) 2
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3957
18:25
Oklahoma City (OKC)

19:50
Saint Louis (STL) 2
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3957
18:40
Oklahoma City (OKC)

20:05
Saint Louis (STL) 2
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3957
22:45
Phoenix Sky Harbor (PHX) 4

00:10(+1)
Los Angeles (LAX) 1
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (73W)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN3957
13:45
Las Vegas Harry Reid (LAS) 1

20:05
Saint Louis (STL) 2
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3957
15:30
Phoenix Sky Harbor (PHX) 4

18:55
Reno (RNO)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:25, 1-stop
Boeing 737-700 (73W)
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This flight number is listed as serving the following routes:
  • Las Vegas Harry Reid (LAS) - Oakland (OAK)
  • Las Vegas Harry Reid (LAS) - Oklahoma City (OKC)
  • Las Vegas Harry Reid (LAS) - Saint Louis (STL)
  • Los Angeles (LAX) - Reno (RNO)
  • Oklahoma City (OKC) - Saint Louis (STL)
  • Ontario, Los Angeles (ONT) - San Jose (SJC)
  • Phoenix Sky Harbor (PHX) - Los Angeles (LAX)
  • Phoenix Sky Harbor (PHX) - Reno (RNO)
All Southwest Airlines flights
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