Southwest Airlines
flight
WN 4203:
Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4203
Effective 2026-08-09 through 2026-09-27
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-08-04 through 2026-09-30
Mon
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Tue
Wed
Thu
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Fri
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Sat
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Sun
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Duration: 1:25, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-04-07 through 2026-06-03
Mon
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Tue
Wed
Thu
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Fri
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Sat
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Sun
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Duration: 2:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-08-08 through 2026-09-26
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4203
Operates only on 2026-04-30
Mon
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Tue
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Wed
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Thu
Fri
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Sat
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Sun
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Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
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-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-18 through 2026-01-23
Mon
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-
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
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-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Operates only on 2026-02-08
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-24 through 2026-03-04
Mon
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Tue
Wed
Thu
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Fri
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Sat
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Sun
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Duration: 1:15, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-04-09 through 2026-04-27
Mon
Tue
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Wed
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Thu
Fri
Sat
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Sun
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-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-05-01 through 2026-06-01
Mon
Tue
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Wed
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Thu
Fri
Sat
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-
Sun
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-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-10 through 2026-02-07
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-12 through 2026-02-16
Mon
Tue
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-
Wed
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-
Thu
Fri
Sat
Sun
-
-
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-20 through 2026-03-01
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
Sun
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-04-12 through 2026-05-17
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Operates only on 2026-05-24
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4203
Operates only on 2026-05-31
Mon
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Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-11 through 2026-01-16
Mon
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Tue
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Wed
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Thu
Fri
Sat
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-
Sun
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-18 through 2026-01-23
Mon
-
-
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-19 through 2026-01-25
Mon
Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-01 through 2026-02-08
Mon
-
-
Tue
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Wed
-
-
Thu
Fri
Sat
-
-
Sun
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-09 through 2026-02-15
Mon
Tue
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Wed
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Thu
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Fri
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Sat
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Sun
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-10 through 2026-02-11
Mon
-
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Tue
Wed
Thu
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Fri
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Sat
-
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Sun
-
-
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
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-
Thu
Fri
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Sat
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-
Sun
-
-
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-18 through 2026-03-04
Mon
-
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Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Operates only on 2026-03-02
Mon
Tue
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Wed
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Thu
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Fri
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Sat
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Sun
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Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-04-07 through 2026-06-03
Mon
-
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Tue
Wed
Thu
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-
Fri
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Sat
-
-
Sun
-
-
Duration: 2:55, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-03-09 through 2026-04-06
Mon
Tue
-
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Wed
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-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-03-10 through 2026-04-01
Mon
-
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Tue
Wed
Thu
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Fri
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Sat
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-
Sun
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-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-03-05 through 2026-03-06
Mon
-
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Tue
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Wed
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Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-06-07 through 2026-08-02
Mon
-
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Tue
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Wed
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Thu
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Fri
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Sat
-
-
Sun
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-03-14 through 2026-04-04
Mon
-
-
Tue
-
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Wed
-
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Thu
-
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Fri
-
-
Sat
Sun
-
-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4203
Operates only on 2026-03-07
Mon
-
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Tue
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Wed
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Thu
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Fri
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Sat
Sun
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-
Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
-
Wed
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-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4203
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
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Wed
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-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4203
Effective 2026-04-07 through 2026-06-03
Mon
-
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Tue
Wed
Thu
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Fri
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Sat
-
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Sun
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Duration: 5:55, 1-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 5:35, 1-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-18 through 2026-01-23
Mon
-
-
Tue
Wed
Thu
Fri
Sat
-
-
Sun
Duration: 5:35, 1-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4203
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 5:35, 1-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4203
Operates only on 2026-02-08
Mon
-
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Tue
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Wed
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Thu
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Fri
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Sat
-
-
Sun
Duration: 5:35, 1-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4203
Effective 2026-02-24 through 2026-03-04
Mon
-
-
Tue
Wed
Thu
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Fri
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Sat
-
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Sun
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Duration: 5:35, 1-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Ad mobi box here (300x250px) 8888825773 M FlightWNum Bottom Box
Parallax here
This flight number is listed as serving the following routes:
- Dallas Love Field (DAL) - Baltimore (BWI)
- John Glenn Columbus (CMH) - Saint Louis (STL)
- Las Vegas Harry Reid (LAS) - Chicago O'Hare (ORD)
- Los Angeles (LAX) - Chicago O'Hare (ORD)
- Los Angeles (LAX) - Las Vegas Harry Reid (LAS)
- Phoenix Sky Harbor (PHX) - Baltimore (BWI)
- Phoenix Sky Harbor (PHX) - Dallas Love Field (DAL)
- Phoenix Sky Harbor (PHX) - Houston Hobby (HOU)