Southwest Airlines
flight
WN 3631:
Multiple routes
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3631
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:00, non-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:00, non-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-08-05 through 2025-10-01
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:55, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Southwest Airlines WN3631
Effective 2025-08-10 through 2025-08-24
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3631
Effective 2025-09-07 through 2025-09-28
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3631
Operates only on 2025-08-31
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3631
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Operates only on 2025-07-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Duration: 2:35, non-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3631
Effective 2025-11-22 through 2025-11-29
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Southwest Airlines WN3631
Effective 2025-12-20 through 2026-01-03
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Southwest Airlines WN3631
Effective 2025-08-09 through 2025-09-27
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3631
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 3:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
Duration: 3:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Operates only on 2025-07-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-06-07 through 2025-08-03
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
Duration: 2:00, non-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-06-10 through 2025-07-30
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Southwest Airlines WN3631
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Effective 2025-10-04 through 2025-11-01
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
Sun
-
-
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3631
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Effective 2025-10-05 through 2025-10-26
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Effective 2025-06-08 through 2025-08-03
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 3:15, non-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-10-07 through 2025-10-29
Mon
-
-
Tue
Wed
Thu
-
-
Fri
-
-
Sat
-
-
Sun
-
-
Duration: 1:20, non-stop
Boeing 737-800 (73H)
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN3631
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Operates only on 2025-07-04
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
Sat
-
-
Sun
-
-
Duration: 5:40, 1-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-06-08 through 2025-08-03
Mon
-
-
Tue
-
-
Wed
-
-
Thu
-
-
Fri
-
-
Sat
-
-
Sun
Duration: 5:50, 1-stop
Boeing 737-700 (73W)
Boeing 737-700 (73W)
Southwest Airlines WN3631
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 3:40, 1-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3631
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
-
Wed
-
-
Thu
Fri
Sat
-
-
Sun
-
-
Duration: 6:20, 2-stop
Boeing 737-700 (Scimitar Winglets)
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
- Atlanta (ATL) - Baltimore (BWI)
- Atlanta (ATL) - Providence (PVD)
- Austin (AUS) - Denver (DEN)
- Austin (AUS) - Long Beach (LGB)
- Baltimore (BWI) - Providence (PVD)
- Denver (DEN) - Long Beach (LGB)
- Houston Hobby (HOU) - San Diego (SAN)
- Kansas City (MCI) - Houston Hobby (HOU)
- Kansas City (MCI) - San Diego (SAN)
- Love Field, Dallas (DAL) - Atlanta (ATL)
- Love Field, Dallas (DAL) - Baltimore (BWI)
- Love Field, Dallas (DAL) - Providence (PVD)
- Manchester (MHT) - Orlando (MCO)
- Orlando (MCO) - Luis Munoz Marin, San Juan (SJU)