Southwest Airlines
flight
WN 40:
Multiple routes
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN40
Effective 2026-01-02 through 2026-01-05
Mon
Tue
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Wed
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Thu
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Fri
Sat
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Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
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: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
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: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-02-01 through 2026-02-06
Mon
-
-
Tue
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-
Wed
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Thu
Fri
Sat
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-
Sun
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
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: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-02-12 through 2026-02-16
Mon
Tue
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Wed
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Thu
Fri
Sat
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Sun
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Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN40
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
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-
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-02-20 through 2026-03-01
Mon
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Tue
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Wed
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Thu
Fri
Sat
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Sun
Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN40
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: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-03-05 through 2026-04-06
Mon
Tue
Wed
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-04-09 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: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-06-04 through 2026-08-03
Mon
Tue
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Wed
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Thu
Fri
Sat
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-
Sun
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-
Duration: 1:10, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN40
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
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-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-08-06 through 2026-09-28
Mon
Tue
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-
Wed
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-
Thu
Fri
Sat
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-
Sun
-
-
Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN40
Effective 2026-04-11 through 2026-05-30
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: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
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: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-01-11 through 2026-01-16
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
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 WN40
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: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-02-01 through 2026-02-06
Mon
-
-
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
-
Wed
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-
Thu
-
-
Fri
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-
Sat
-
-
Sun
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
-
Thu
Fri
-
-
Sat
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-
Sun
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-
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
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: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Operates only on 2026-01-05
Mon
Tue
-
-
Wed
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-
Thu
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-
Fri
-
-
Sat
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-
Sun
-
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
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-
Sun
-
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
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: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-06-04 through 2026-08-03
Mon
Tue
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-
Wed
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-
Thu
Fri
Sat
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-
Sun
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-
Duration: 2:55, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN40
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: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN40
Effective 2026-03-10 through 2026-04-01
Mon
-
-
Tue
Wed
Thu
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-
Fri
-
-
Sat
-
-
Sun
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-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Operates only on 2026-01-05
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: 3:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Effective 2026-01-11 through 2026-01-16
Mon
-
-
Tue
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-
Wed
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-
Thu
Fri
Sat
-
-
Sun
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
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
-
-
Sun
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Effective 2026-02-01 through 2026-02-06
Mon
-
-
Tue
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-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Effective 2026-02-09 through 2026-02-15
Mon
Tue
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-
Wed
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-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
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-
Thu
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
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
-
-
Sun
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-
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Effective 2026-03-05 through 2026-04-06
Mon
Tue
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-
Wed
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-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
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: 3:35, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
-
Wed
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-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 4:45, 1-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN40
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: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
Effective 2026-03-10 through 2026-04-01
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 4:05, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN40
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: 5:55, 2-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
- Dallas Love Field (DAL) - Colorado Springs (COS)
- Dallas Love Field (DAL) - Denver (DEN)
- Dallas Love Field (DAL) - Midland (MAF)
- Dallas Love Field (DAL) - Nashville (BNA)
- Dallas Love Field (DAL) - Ronald Reagan Washington (DCA)
- Dallas Love Field (DAL) - San Diego (SAN)
- Dallas Love Field (DAL) - Sarasota/Bradenton (SRQ)
- Houston Hobby (HOU) - Colorado Springs (COS)
- Houston Hobby (HOU) - Dallas Love Field (DAL)
- Houston Hobby (HOU) - Denver (DEN)
- Houston Hobby (HOU) - Midland (MAF)
- Houston Hobby (HOU) - Nashville (BNA)
- Houston Hobby (HOU) - Ronald Reagan Washington (DCA)
- Houston Hobby (HOU) - San Diego (SAN)
- Houston Hobby (HOU) - Sarasota/Bradenton (SRQ)
- Nashville (BNA) - Ronald Reagan Washington (DCA)