Southwest Airlines flight WN 4148: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Thu 08:25 Saint Louis (STL) 2 09:35 Nashville (BNA)
WN 4148 Non-stop Boeing 737-800 (73H) 1:10 Valid until 2026-01-01
Fri,Sun 09:05 Orlando (MCO) 10:45 Saint Louis (STL) 2
WN 4148 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-01-02 through 2026-01-04
Mon 11:05 Saint Louis (STL) 2 12:15 Nashville (BNA)
WN 4148 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Operates only on 2026-01-05
Fri,Sun 11:20 Saint Louis (STL) 2 12:30 Nashville (BNA)
WN 4148 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-01-02 through 2026-01-04
Tue,Wed 12:20 Los Angeles (LAX) 1 15:40 Denver (DEN)
WN 4148 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-04-07 through 2026-06-03
Sat 13:05 San Diego (SAN) 1 21:10 Baltimore (BWI)
WN 4148 Non-stop Boeing 737 MAX 8 (7M8) 5:05 Effective 2026-06-06 through 2026-08-01
Sat 13:10 Las Vegas Harry Reid (LAS) 1 20:55 Ronald Reagan Washington (DCA) 1
WN 4148 Non-stop Boeing 737 MAX 8 (7M8) 4:45 Effective 2026-08-08 through 2026-09-26
Sun 14:05 Los Angeles (LAX) 1 17:30 Denver (DEN)
WN 4148 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Operates only on 2026-05-24
Mon,Thu,Fri 14:10 San Diego (SAN) 1 22:10 Baltimore (BWI)
WN 4148 Non-stop Boeing 737-700 (Scimitar Winglets) 5:00 Effective 2026-06-04 through 2026-08-03
Sat 14:30 Pittsburgh (PIT) 15:15 Saint Louis (STL) 2
WN 4148 Non-stop Boeing 737-800 (73H) 1:45 Valid until 2026-01-03
Sun 14:50 Los Angeles (LAX) 1 18:10 Denver (DEN)
WN 4148 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-12 through 2026-05-17
Sun 14:50 Los Angeles (LAX) 1 18:10 Denver (DEN)
WN 4148 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2026-05-31
Non-Direct Flights:
Fri,Sun 09:05 Orlando (MCO) 12:30 Nashville (BNA)
WN 4148 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2026-01-02 through 2026-01-04
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4148: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4148
08:25
Saint Louis (STL) 2

09:35
Nashville (BNA)
Valid until 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4148
09:05
Orlando (MCO)

10:45
Saint Louis (STL) 2
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4148
11:05
Saint Louis (STL) 2

12:15
Nashville (BNA)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4148
11:20
Saint Louis (STL) 2

12:30
Nashville (BNA)
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4148
12:20
Los Angeles (LAX) 1

15:40
Denver (DEN)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4148
13:05
San Diego (SAN) 1

21:10
Baltimore (BWI)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4148
13:10
Las Vegas Harry Reid (LAS) 1

20:55
Ronald Reagan Washington (DCA) 1
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4148
14:05
Los Angeles (LAX) 1

17:30
Denver (DEN)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4148
14:10
San Diego (SAN) 1

22:10
Baltimore (BWI)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4148
14:30
Pittsburgh (PIT)

15:15
Saint Louis (STL) 2
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4148
14:50
Los Angeles (LAX) 1

18:10
Denver (DEN)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4148
14:50
Los Angeles (LAX) 1

18:10
Denver (DEN)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4148
09:05
Orlando (MCO)

12:30
Nashville (BNA)
Effective 2026-01-02 through 2026-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Las Vegas Harry Reid (LAS) - Ronald Reagan Washington (DCA)
  • Los Angeles (LAX) - Denver (DEN)
  • Orlando (MCO) - Nashville (BNA)
  • Orlando (MCO) - Saint Louis (STL)
  • Pittsburgh (PIT) - Saint Louis (STL)
  • Saint Louis (STL) - Nashville (BNA)
  • San Diego (SAN) - Baltimore (BWI)
All Southwest Airlines flights
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