Southwest Airlines flight WN 4131: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 06:15 Saint Louis (STL) 2 09:15 Baltimore (BWI)
WN 4131 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-03-10 through 2026-04-01
Mon,Tue,Fri,Sun 08:15 Portland (PDX) 11:45 Phoenix Sky Harbor (PHX) 4
WN 4131 Non-stop Boeing 737-800 (73H) 2:30 Valid until 2026-01-04
Sun 08:50 Saint Louis (STL) 2 11:50 Baltimore (BWI)
WN 4131 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-03-08 through 2026-04-05
Sat 09:55 Portland (PDX) 13:25 Phoenix Sky Harbor (PHX) 4
WN 4131 Non-stop Boeing 737-800 (73H) 2:30 Valid until 2026-01-03
Mon 12:10 Chicago Midway (MDW) 14:55 Ronald Reagan Washington (DCA) 1
WN 4131 Non-stop Boeing 737-800 (73H) 1:45 Operates only on 2026-01-05
Sun 12:40 Austin (AUS) 13:45 San Diego (SAN) 1
WN 4131 Non-stop Boeing 737-800 (73H) 3:05 Effective 2026-04-12 through 2026-05-17
Sun 12:40 Austin (AUS) 13:45 San Diego (SAN) 1
WN 4131 Non-stop Boeing 737-800 (73H) 3:05 Operates only on 2026-05-31
Mon,Thu,Fri 13:35 Las Vegas Harry Reid (LAS) 1 15:10 Oakland (OAK) 2
WN 4131 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-08-06 through 2026-09-28
Sun 14:25 San Diego (SAN) 1 16:10 Sacramento (SMF) B
WN 4131 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-04-12 through 2026-05-17
Sun 14:25 San Diego (SAN) 1 16:10 Sacramento (SMF) B
WN 4131 Non-stop Boeing 737-800 (73H) 1:45 Operates only on 2026-05-31
Mon,Thu,Fri 14:55 Denver (DEN) 16:20 Santa Ana (SNA)
WN 4131 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-06-04 through 2026-08-03
Mon-Fri 15:00 San Diego (SAN) 1 16:40 Sacramento (SMF) B
WN 4131 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-04-07 through 2026-06-03
Sat 15:10 San Diego (SAN) 1 16:50 Sacramento (SMF) B
WN 4131 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-04-11 through 2026-05-30
Non-Direct Flights:
Sun 12:40 Austin (AUS) 16:10 Sacramento (SMF) B
WN 4131 1-stop Boeing 737-800 (73H) 5:30 Effective 2026-04-12 through 2026-05-17
Sun 12:40 Austin (AUS) 16:10 Sacramento (SMF) B
WN 4131 1-stop Boeing 737-800 (73H) 5:30 Operates only on 2026-05-31
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4131: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4131
06:15
Saint Louis (STL) 2

09:15
Baltimore (BWI)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
08:15
Portland (PDX)

11:45
Phoenix Sky Harbor (PHX) 4
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
08:50
Saint Louis (STL) 2

11:50
Baltimore (BWI)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4131
09:55
Portland (PDX)

13:25
Phoenix Sky Harbor (PHX) 4
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
12:10
Chicago Midway (MDW)

14:55
Ronald Reagan Washington (DCA) 1
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
12:40
Austin (AUS)

13:45
San Diego (SAN) 1
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
12:40
Austin (AUS)

13:45
San Diego (SAN) 1
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
13:35
Las Vegas Harry Reid (LAS) 1

15:10
Oakland (OAK) 2
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
14:25
San Diego (SAN) 1

16:10
Sacramento (SMF) B
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
14:25
San Diego (SAN) 1

16:10
Sacramento (SMF) B
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4131
14:55
Denver (DEN)

16:20
Santa Ana (SNA)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4131
15:00
San Diego (SAN) 1

16:40
Sacramento (SMF) B
Effective 2026-04-07 through 2026-06-03
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4131
15:10
San Diego (SAN) 1

16:50
Sacramento (SMF) B
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:40, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4131
12:40
Austin (AUS)

16:10
Sacramento (SMF) B
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:30, 1-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4131
12:40
Austin (AUS)

16:10
Sacramento (SMF) B
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:30, 1-stop
Boeing 737-800 (73H)
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This flight number is listed as serving the following routes:
  • Austin (AUS) - Sacramento (SMF)
  • Austin (AUS) - San Diego (SAN)
  • Chicago Midway (MDW) - Ronald Reagan Washington (DCA)
  • Denver (DEN) - Santa Ana (SNA)
  • Las Vegas Harry Reid (LAS) - Oakland (OAK)
  • Portland (PDX) - Phoenix Sky Harbor (PHX)
  • Saint Louis (STL) - Baltimore (BWI)
  • San Diego (SAN) - Sacramento (SMF)
All Southwest Airlines flights
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