Southwest Airlines flight WN 451: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:25 Tampa (TPA) 06:50 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737-800 (73H) 2:25 Valid until 2025-06-02
Sat 05:55 Tampa (TPA) 07:20 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Valid until 2025-05-31
Sun 06:15 Tampa (TPA) 07:40 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737-800 (73H) 2:25 Valid until 2025-05-18
Sun 06:15 Tampa (TPA) 07:40 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737-800 (73H) 2:25 Operates only on 2025-06-01
Sun 07:20 Tampa (TPA) 08:45 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737-700 (73W) 2:25 Operates only on 2025-05-25
Sat 08:20 Baltimore (BWI) 10:05 Charlotte (CLT)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2025-11-08 through 2025-11-15
Sat 08:20 Baltimore (BWI) 10:05 Charlotte (CLT)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2025-12-06 through 2025-12-13
Sun 09:40 Providence (PVD) 11:15 Ronald Reagan Washington (DCA)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-10-05 through 2025-10-26
Sat 10:40 Charlotte (CLT) 11:15 Nashville (BNA)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-11-08 through 2025-11-15
Sat 10:40 Charlotte (CLT) 11:15 Nashville (BNA)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-12-06 through 2025-12-13
Tue,Wed 11:45 Tampa (TPA) 13:15 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Valid until 2025-06-04
Sun 11:50 Ronald Reagan Washington (DCA) 13:40 Kansas City (MCI)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2025-10-05 through 2025-10-26
Sun 12:20 Nashville (BNA) 14:55 Salt Lake City (SLC)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 3:35 Effective 2025-06-08 through 2025-08-03
Mon,Thu,Fri 12:45 Atlanta (ATL) N 13:25 Saint Louis (STL) 2
WN 451 Non-stop Boeing 737-700 (73W) 1:40 Effective 2025-08-07 through 2025-09-29
Mon,Thu,Fri,Sun 13:00 Denver (DEN) 18:05 Charlotte (CLT)
WN 451 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 13:00 Denver (DEN) 18:05 Charlotte (CLT)
WN 451 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-11-21 through 2025-11-28
Fri,Sun 13:00 Denver (DEN) 18:05 Charlotte (CLT)
WN 451 Non-stop Boeing 737-800 (73H) 3:05 Effective 2025-12-07 through 2025-12-14
Thu 13:00 Denver (DEN) 18:05 Charlotte (CLT)
WN 451 Non-stop Boeing 737-800 (73H) 3:05 Operates only on 2025-12-18
Mon 13:00 Denver (DEN) 18:05 Charlotte (CLT)
WN 451 Non-stop Boeing 737-800 (73H) 3:05 Operates only on 2026-01-05
Thu 13:15 Orlando (MCO) 15:05 Midway, Chicago (MDW)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Operates only on 2025-11-27
Sun 13:50 Atlanta (ATL) N 14:30 Saint Louis (STL) 2
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Operates only on 2025-08-31
Sat 13:55 Nashville (BNA) 16:30 Salt Lake City (SLC)
WN 451 Non-stop Boeing 737-800 (73H) 3:35 Effective 2025-06-07 through 2025-08-02
Sun 14:25 Kansas City (MCI) 16:05 Sacramento (SMF) B
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 3:40 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 14:55 Oklahoma City (OKC) 16:20 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 14:55 Oklahoma City (OKC) 16:20 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-07-07 through 2025-08-04
Mon-Wed 15:40 Denver (DEN) 20:45 Charlotte (CLT)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 15:40 Denver (DEN) 20:45 Charlotte (CLT)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2025-12-19 through 2026-01-04
Fri 16:05 Oklahoma City (OKC) 17:30 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2025-07-04
Sun 16:05 Atlanta (ATL) N 16:45 Saint Louis (STL) 2
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2025-08-10 through 2025-08-24
Sun 16:05 Atlanta (ATL) N 16:45 Saint Louis (STL) 2
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Effective 2025-09-07 through 2025-09-28
Sun 16:40 Sacramento (SMF) B 18:05 Santa Ana (SNA)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-10-05 through 2025-10-26
Tue,Wed 17:10 Charlotte (CLT) 17:45 Nashville (BNA)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-11-04 through 2025-11-12
Mon-Thu 17:10 Charlotte (CLT) 17:45 Nashville (BNA)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-11-17 through 2025-11-20
Mon-Fri 17:10 Charlotte (CLT) 17:45 Nashville (BNA)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-12-02 through 2025-12-11
Mon-Wed 17:10 Charlotte (CLT) 17:45 Nashville (BNA)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-12-15 through 2025-12-17
Wed,Thu 17:10 Charlotte (CLT) 17:45 Nashville (BNA)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-12-24 through 2026-01-01
Tue,Wed 17:25 Las Vegas Harry Reid (LAS) 1 19:00 San Jose (SJC) B
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-10-07 through 2025-10-29
Mon,Thu,Fri 18:40 Kansas City (MCI) 19:40 Las Vegas Harry Reid (LAS) 1
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2025-10-02 through 2025-10-31
Sun 18:40 Santa Ana (SNA) 19:50 Las Vegas Harry Reid (LAS) 1
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-10-05 through 2025-10-26
Sun 18:40 Charlotte (CLT) 19:20 Nashville (BNA)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Operates only on 2025-11-30
Sat 18:50 Las Vegas Harry Reid (LAS) 1 20:25 San Jose (SJC) B
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-10-04 through 2025-11-01
Mon,Thu,Fri,Sun 18:55 Charlotte (CLT) 19:35 Nashville (BNA)
WN 451 Non-stop Boeing 737-800 (73H) 1:40 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 18:55 Charlotte (CLT) 19:35 Nashville (BNA)
WN 451 Non-stop Boeing 737-800 (73H) 1:40 Effective 2025-11-21 through 2025-11-28
Fri,Sun 18:55 Charlotte (CLT) 19:35 Nashville (BNA)
WN 451 Non-stop Boeing 737-800 (73H) 1:40 Effective 2025-12-07 through 2025-12-14
Thu 18:55 Charlotte (CLT) 19:35 Nashville (BNA)
WN 451 Non-stop Boeing 737-800 (73H) 1:40 Operates only on 2025-12-18
Mon 18:55 Charlotte (CLT) 19:35 Nashville (BNA)
WN 451 Non-stop Boeing 737-800 (73H) 1:40 Operates only on 2026-01-05
Tue,Wed 19:10 Oklahoma City (OKC) 20:35 Houston Hobby (HOU)
WN 451 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-06-10 through 2025-07-30
Tue,Wed 19:15 Atlanta (ATL) N 20:00 Saint Louis (STL) 2
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2025-08-05 through 2025-10-01
Sun 19:55 Nashville (BNA) 22:00 Oklahoma City (OKC)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Operates only on 2025-11-30
Mon,Thu,Fri 20:20 Las Vegas Harry Reid (LAS) 1 21:50 San Jose (SJC) B
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-10-02 through 2025-10-31
Sun 20:25 Las Vegas Harry Reid (LAS) 1 21:55 San Jose (SJC) B
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-10-05 through 2025-10-26
Sat 21:15 Charlotte (CLT) 21:55 Nashville (BNA)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2025-11-22 through 2025-11-29
Sat 21:15 Charlotte (CLT) 21:55 Nashville (BNA)
WN 451 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2025-12-20 through 2026-01-03
Mon-Wed 21:25 Charlotte (CLT) 22:00 Nashville (BNA)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 21:25 Charlotte (CLT) 22:00 Nashville (BNA)
WN 451 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-12-19 through 2026-01-04
Non-Direct Flights:
Sat 08:20 Baltimore (BWI) 11:15 Nashville (BNA)
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 3:55 Effective 2025-11-08 through 2025-11-15
Sat 08:20 Baltimore (BWI) 11:15 Nashville (BNA)
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 3:55 Effective 2025-12-06 through 2025-12-13
Sun 09:40 Providence (PVD) 13:40 Kansas City (MCI)
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 5:00 Effective 2025-10-05 through 2025-10-26
Sun 11:50 Ronald Reagan Washington (DCA) 16:05 Sacramento (SMF) B
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 7:15 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri,Sun 13:00 Denver (DEN) 19:35 Nashville (BNA)
WN 451 1-stop Boeing 737-800 (73H) 5:35 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 13:00 Denver (DEN) 19:35 Nashville (BNA)
WN 451 1-stop Boeing 737-800 (73H) 5:35 Effective 2025-11-21 through 2025-11-28
Fri,Sun 13:00 Denver (DEN) 19:35 Nashville (BNA)
WN 451 1-stop Boeing 737-800 (73H) 5:35 Effective 2025-12-07 through 2025-12-14
Thu 13:00 Denver (DEN) 19:35 Nashville (BNA)
WN 451 1-stop Boeing 737-800 (73H) 5:35 Operates only on 2025-12-18
Mon 13:00 Denver (DEN) 19:35 Nashville (BNA)
WN 451 1-stop Boeing 737-800 (73H) 5:35 Operates only on 2026-01-05
Sun 14:25 Kansas City (MCI) 18:05 Santa Ana (SNA)
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 5:40 Effective 2025-10-05 through 2025-10-26
Mon-Wed 15:40 Denver (DEN) 22:00 Nashville (BNA)
WN 451 1-stop Boeing 737 MAX 8 (7M8) 5:20 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 15:40 Denver (DEN) 22:00 Nashville (BNA)
WN 451 1-stop Boeing 737 MAX 8 (7M8) 5:20 Effective 2025-12-19 through 2026-01-04
Sun 16:40 Sacramento (SMF) B 19:50 Las Vegas Harry Reid (LAS) 1
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 3:10 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 18:40 Kansas City (MCI) 21:50 San Jose (SJC) B
WN 451 1-stop Boeing 737 MAX 8 (7M8) 5:10 Effective 2025-10-02 through 2025-10-31
Sun 18:40 Santa Ana (SNA) 21:55 San Jose (SJC) B
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2025-10-05 through 2025-10-26
Sun 18:40 Charlotte (CLT) 22:00 Oklahoma City (OKC)
WN 451 1-stop Boeing 737-700 (Scimitar Winglets) 4:20 Operates only on 2025-11-30
Sun 09:40 Providence (PVD) 16:05 Sacramento (SMF) B
WN 451 2-stop Boeing 737-700 (Scimitar Winglets) 9:25 Effective 2025-10-05 through 2025-10-26
Sun 11:50 Ronald Reagan Washington (DCA) 18:05 Santa Ana (SNA)
WN 451 2-stop Boeing 737-700 (Scimitar Winglets) 9:15 Effective 2025-10-05 through 2025-10-26
Sun 14:25 Kansas City (MCI) 19:50 Las Vegas Harry Reid (LAS) 1
WN 451 2-stop Boeing 737-700 (Scimitar Winglets) 7:25 Effective 2025-10-05 through 2025-10-26
Sun 16:40 Sacramento (SMF) B 21:55 San Jose (SJC) B
WN 451 2-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2025-10-05 through 2025-10-26
Sun 09:40 Providence (PVD) 18:05 Santa Ana (SNA)
WN 451 3-stop Boeing 737-700 (Scimitar Winglets) 11:25 Effective 2025-10-05 through 2025-10-26
Sun 11:50 Ronald Reagan Washington (DCA) 19:50 Las Vegas Harry Reid (LAS) 1
WN 451 3-stop Boeing 737-700 (Scimitar Winglets) 11:00 Effective 2025-10-05 through 2025-10-26
Sun 14:25 Kansas City (MCI) 21:55 San Jose (SJC) B
WN 451 3-stop Boeing 737-700 (Scimitar Winglets) 9:30 Effective 2025-10-05 through 2025-10-26
Sun 09:40 Providence (PVD) 19:50 Las Vegas Harry Reid (LAS) 1
WN 451 4-stop Boeing 737-700 (Scimitar Winglets) 13:10 Effective 2025-10-05 through 2025-10-26
Sun 11:50 Ronald Reagan Washington (DCA) 21:55 San Jose (SJC) B
WN 451 4-stop Boeing 737-700 (Scimitar Winglets) 13:05 Effective 2025-10-05 through 2025-10-26
Sun 09:40 Providence (PVD) 21:55 San Jose (SJC) B
WN 451 5-stop Boeing 737-700 (Scimitar Winglets) 15:15 Effective 2025-10-05 through 2025-10-26
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This flight number is listed as serving the following routes:
Southwest Airlines flight WN 451: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Southwest Airlines WN451
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN451
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN451
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:35, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN451
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN451
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:55, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:55, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:00, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 5:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 5:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 5:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:35, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:40, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:20, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 5:20, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:10, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:10, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:20, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:25, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:15, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:25, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:15, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 11:25, 3-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 11:00, 3-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:30, 3-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 13:10, 4-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 13:05, 4-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN451
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 15:15, 5-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Saint Louis (STL)
  • Baltimore (BWI) - Charlotte (CLT)
  • Baltimore (BWI) - Nashville (BNA)
  • Charlotte (CLT) - Nashville (BNA)
  • Charlotte (CLT) - Oklahoma City (OKC)
  • Denver (DEN) - Charlotte (CLT)
  • Denver (DEN) - Nashville (BNA)
  • Kansas City (MCI) - Las Vegas Harry Reid (LAS)
  • Kansas City (MCI) - Sacramento (SMF)
  • Kansas City (MCI) - San Jose (SJC)
  • Kansas City (MCI) - Santa Ana (SNA)
  • Las Vegas Harry Reid (LAS) - San Jose (SJC)
  • Nashville (BNA) - Oklahoma City (OKC)
  • Nashville (BNA) - Salt Lake City (SLC)
  • Oklahoma City (OKC) - Houston Hobby (HOU)
  • Orlando (MCO) - Midway, Chicago (MDW)
  • Providence (PVD) - Kansas City (MCI)
  • Providence (PVD) - Las Vegas Harry Reid (LAS)
  • Providence (PVD) - Ronald Reagan Washington (DCA)
  • Providence (PVD) - Sacramento (SMF)
  • Providence (PVD) - San Jose (SJC)
  • Providence (PVD) - Santa Ana (SNA)
  • Ronald Reagan Washington (DCA) - Kansas City (MCI)
  • Ronald Reagan Washington (DCA) - Las Vegas Harry Reid (LAS)
  • Ronald Reagan Washington (DCA) - Sacramento (SMF)
  • Ronald Reagan Washington (DCA) - San Jose (SJC)
  • Ronald Reagan Washington (DCA) - Santa Ana (SNA)
  • Sacramento (SMF) - Las Vegas Harry Reid (LAS)
  • Sacramento (SMF) - San Jose (SJC)
  • Sacramento (SMF) - Santa Ana (SNA)
  • Santa Ana (SNA) - Las Vegas Harry Reid (LAS)
  • Santa Ana (SNA) - San Jose (SJC)
  • Tampa (TPA) - Houston Hobby (HOU)