Southwest Airlines flight WN 1251: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon-Wed 05:20 Denver (DEN) 07:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-11-26 through 2024-12-02
Mon,Thu,Fri,Sun 05:20 Denver (DEN) 07:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-12-20 through 2025-01-02
Sun 05:20 Denver (DEN) 07:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Operates only on 2025-01-05
Sat 06:00 Love Field, Dallas (DAL) 1 07:05 Denver (DEN)
WN 1251 Non-stop Boeing 737-700 (73W) 2:05 Effective 2025-01-11 through 2025-02-08
Mon-Fri 06:10 Denver (DEN) 08:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-01-07 through 2025-01-15
Tue-Fri,Sun 06:10 Denver (DEN) 08:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-01-19 through 2025-01-24
Mon-Fri 06:10 Denver (DEN) 08:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-01-27 through 2025-02-05
Tue,Wed,Sun 06:10 Denver (DEN) 08:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-02-09 through 2025-02-12
Tue,Wed 06:10 Denver (DEN) 08:25 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-02-19 through 2025-03-05
Sat 06:45 Denver (DEN) 08:50 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-800 (73H) 2:05 Effective 2024-11-09 through 2024-11-16
Sat 06:45 Denver (DEN) 08:50 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-800 (73H) 2:05 Effective 2024-12-07 through 2024-12-14
Thu,Fri,Sun 06:50 Denver (DEN) 09:00 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-01-12 through 2025-01-17
Mon,Sun 06:50 Denver (DEN) 09:00 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-01-20 through 2025-01-26
Thu,Fri,Sun 06:50 Denver (DEN) 09:00 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-02-02 through 2025-02-07
Mon 06:50 Denver (DEN) 09:00 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Operates only on 2025-02-10
Mon,Tue,Thu 06:50 Denver (DEN) 09:00 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-02-18 through 2025-02-24
Mon 06:50 Denver (DEN) 09:00 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Operates only on 2025-03-03
Mon-Wed 07:00 Denver (DEN) 09:05 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-11-04 through 2024-11-06
Tue,Wed 07:00 Denver (DEN) 09:05 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-11-12 through 2024-11-20
Tue-Fri 07:00 Denver (DEN) 09:05 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-11-29 through 2024-12-06
Mon-Thu 07:00 Denver (DEN) 09:05 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-12-09 through 2024-12-18
Tue,Wed 07:00 Denver (DEN) 09:05 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-12-24 through 2025-01-01
Mon 07:00 Denver (DEN) 09:05 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Operates only on 2025-01-06
Mon,Thu,Fri,Sun 07:00 Denver (DEN) 09:10 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-02-13 through 2025-02-17
Thu,Fri,Sun 07:00 Denver (DEN) 09:10 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-02-21 through 2025-03-02
Thu 07:35 Denver (DEN) 09:40 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Operates only on 2024-11-28
Sat 07:45 Denver (DEN) 09:55 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-700 (73W) 2:10 Effective 2025-01-11 through 2025-02-08
Sat 07:55 Denver (DEN) 10:05 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737-800 (73H) 2:10 Effective 2025-02-15 through 2025-03-01
Thu,Fri,Sun 09:35 Phoenix Sky Harbor (PHX) 4 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-01-12 through 2025-01-17
Mon,Sun 09:35 Phoenix Sky Harbor (PHX) 4 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-01-20 through 2025-01-26
Thu,Fri,Sun 09:35 Phoenix Sky Harbor (PHX) 4 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-02-02 through 2025-02-07
Mon 09:35 Phoenix Sky Harbor (PHX) 4 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 Non-stop Boeing 737-700 (73W) 1:25 Operates only on 2025-02-10
Mon,Tue,Thu 09:35 Phoenix Sky Harbor (PHX) 4 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 Non-stop Boeing 737-700 (73W) 1:25 Effective 2025-02-18 through 2025-02-24
Mon 09:35 Phoenix Sky Harbor (PHX) 4 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 Non-stop Boeing 737-700 (73W) 1:25 Operates only on 2025-03-03
Tue,Wed 10:05 San Diego (SAN) 1 13:00 Salt Lake City (SLC)
WN 1251 Non-stop Boeing 737-800 (73H) 1:55 Valid until 2024-10-02
Thu,Fri,Sun 10:35 Ontario, Los Angeles (ONT) 4 11:55 San Jose (SJC) B
WN 1251 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-01-12 through 2025-01-17
Mon,Sun 10:35 Ontario, Los Angeles (ONT) 4 11:55 San Jose (SJC) B
WN 1251 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-01-20 through 2025-01-26
Thu,Fri,Sun 10:35 Ontario, Los Angeles (ONT) 4 11:55 San Jose (SJC) B
WN 1251 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-02-02 through 2025-02-07
Mon 10:35 Ontario, Los Angeles (ONT) 4 11:55 San Jose (SJC) B
WN 1251 Non-stop Boeing 737-700 (73W) 1:20 Operates only on 2025-02-10
Mon,Tue,Thu 10:35 Ontario, Los Angeles (ONT) 4 11:55 San Jose (SJC) B
WN 1251 Non-stop Boeing 737-700 (73W) 1:20 Effective 2025-02-18 through 2025-02-24
Mon 10:35 Ontario, Los Angeles (ONT) 4 11:55 San Jose (SJC) B
WN 1251 Non-stop Boeing 737-700 (73W) 1:20 Operates only on 2025-03-03
Tue,Wed 11:45 Nashville (BNA) 14:05 Austin (AUS)
WN 1251 Non-stop Boeing 737-700 (73W) 2:20 Effective 2024-10-08 through 2024-10-30
Mon,Thu,Fri 12:35 Minneapolis/Saint Paul (MSP) 2 13:40 Denver (DEN)
WN 1251 Non-stop Boeing 737-800 (73H) 2:05 Valid until 2024-09-19
Mon,Thu,Fri 12:35 Minneapolis/Saint Paul (MSP) 2 13:40 Denver (DEN)
WN 1251 Non-stop Boeing 737-800 (73H) 2:05 Effective 2024-09-26 through 2024-09-30
Fri 12:55 Minneapolis/Saint Paul (MSP) 2 14:00 Denver (DEN)
WN 1251 Non-stop Boeing 737-800 (73H) 2:05 Operates only on 2024-09-20
Mon,Thu,Fri 13:00 Nashville (BNA) 15:20 Austin (AUS)
WN 1251 Non-stop Boeing 737-700 (73W) 2:20 Effective 2024-10-03 through 2024-10-28
Fri 13:00 Nashville (BNA) 15:20 Austin (AUS)
WN 1251 Non-stop Boeing 737-700 (73W) 2:20 Operates only on 2024-11-01
Thu 13:30 Las Vegas Harry Reid (LAS) 1 14:55 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2024-10-31
Sat 14:15 Austin (AUS) 14:50 Phoenix Sky Harbor (PHX) 4
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2024-10-05 through 2024-11-02
Sat 14:20 Minneapolis/Saint Paul (MSP) 2 15:25 Denver (DEN)
WN 1251 Non-stop Boeing 737-800 (73H) 2:05 Valid until 2024-09-28
Sat 16:05 Phoenix Sky Harbor (PHX) 4 19:10 Austin (AUS)
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-11-23 through 2024-11-30
Sat 16:05 Phoenix Sky Harbor (PHX) 4 19:10 Austin (AUS)
WN 1251 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2024-12-21 through 2025-01-04
Sun 16:15 Baltimore (BWI) 17:30 Saint Louis (STL) 2
WN 1251 Non-stop Boeing 737-800 (73H) 2:15 Effective 2024-10-06 through 2024-10-27
Sun 16:25 Minneapolis/Saint Paul (MSP) 2 17:30 Denver (DEN)
WN 1251 Non-stop Boeing 737-800 (73H) 2:05 Effective 2024-09-08 through 2024-09-29
Non-Direct Flights:
Sat 06:00 Love Field, Dallas (DAL) 1 09:55 Phoenix Sky Harbor (PHX) 4
WN 1251 1-stop Boeing 737-700 (73W) 4:55 Effective 2025-01-11 through 2025-02-08
Thu,Fri,Sun 06:50 Denver (DEN) 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 1-stop Boeing 737-700 (73W) 4:10 Effective 2025-01-12 through 2025-01-17
Mon,Sun 06:50 Denver (DEN) 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 1-stop Boeing 737-700 (73W) 4:10 Effective 2025-01-20 through 2025-01-26
Thu,Fri,Sun 06:50 Denver (DEN) 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 1-stop Boeing 737-700 (73W) 4:10 Effective 2025-02-02 through 2025-02-07
Mon 06:50 Denver (DEN) 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 1-stop Boeing 737-700 (73W) 4:10 Operates only on 2025-02-10
Mon,Tue,Thu 06:50 Denver (DEN) 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 1-stop Boeing 737-700 (73W) 4:10 Effective 2025-02-18 through 2025-02-24
Mon 06:50 Denver (DEN) 10:00 Ontario, Los Angeles (ONT) 4
WN 1251 1-stop Boeing 737-700 (73W) 4:10 Operates only on 2025-03-03
Thu,Fri,Sun 09:35 Phoenix Sky Harbor (PHX) 4 11:55 San Jose (SJC) B
WN 1251 1-stop Boeing 737-700 (73W) 3:20 Effective 2025-01-12 through 2025-01-17
Mon,Sun 09:35 Phoenix Sky Harbor (PHX) 4 11:55 San Jose (SJC) B
WN 1251 1-stop Boeing 737-700 (73W) 3:20 Effective 2025-01-20 through 2025-01-26
Thu,Fri,Sun 09:35 Phoenix Sky Harbor (PHX) 4 11:55 San Jose (SJC) B
WN 1251 1-stop Boeing 737-700 (73W) 3:20 Effective 2025-02-02 through 2025-02-07
Mon 09:35 Phoenix Sky Harbor (PHX) 4 11:55 San Jose (SJC) B
WN 1251 1-stop Boeing 737-700 (73W) 3:20 Operates only on 2025-02-10
Mon,Tue,Thu 09:35 Phoenix Sky Harbor (PHX) 4 11:55 San Jose (SJC) B
WN 1251 1-stop Boeing 737-700 (73W) 3:20 Effective 2025-02-18 through 2025-02-24
Mon 09:35 Phoenix Sky Harbor (PHX) 4 11:55 San Jose (SJC) B
WN 1251 1-stop Boeing 737-700 (73W) 3:20 Operates only on 2025-03-03
Thu,Fri,Sun 06:50 Denver (DEN) 11:55 San Jose (SJC) B
WN 1251 2-stop Boeing 737-700 (73W) 6:05 Effective 2025-01-12 through 2025-01-17
Mon,Sun 06:50 Denver (DEN) 11:55 San Jose (SJC) B
WN 1251 2-stop Boeing 737-700 (73W) 6:05 Effective 2025-01-20 through 2025-01-26
Thu,Fri,Sun 06:50 Denver (DEN) 11:55 San Jose (SJC) B
WN 1251 2-stop Boeing 737-700 (73W) 6:05 Effective 2025-02-02 through 2025-02-07
Mon 06:50 Denver (DEN) 11:55 San Jose (SJC) B
WN 1251 2-stop Boeing 737-700 (73W) 6:05 Operates only on 2025-02-10
Mon,Tue,Thu 06:50 Denver (DEN) 11:55 San Jose (SJC) B
WN 1251 2-stop Boeing 737-700 (73W) 6:05 Effective 2025-02-18 through 2025-02-24
Mon 06:50 Denver (DEN) 11:55 San Jose (SJC) B
WN 1251 2-stop Boeing 737-700 (73W) 6:05 Operates only on 2025-03-03
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 1251: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN1251
05:20
Denver (DEN)

07:25
Phoenix Sky Harbor (PHX) 4
Effective 2024-11-26 through 2024-12-02
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
05:20
Denver (DEN)

07:25
Phoenix Sky Harbor (PHX) 4
Effective 2024-12-20 through 2025-01-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
05:20
Denver (DEN)

07:25
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-01-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
06:00
Love Field, Dallas (DAL) 1

07:05
Denver (DEN)
Effective 2025-01-11 through 2025-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:10
Denver (DEN)

08:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-07 through 2025-01-15
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
06:10
Denver (DEN)

08:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-19 through 2025-01-24
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
06:10
Denver (DEN)

08:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-27 through 2025-02-05
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
06:10
Denver (DEN)

08:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-09 through 2025-02-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
06:10
Denver (DEN)

08:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-19 through 2025-03-05
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
06:45
Denver (DEN)

08:50
Phoenix Sky Harbor (PHX) 4
Effective 2024-11-09 through 2024-11-16
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
06:45
Denver (DEN)

08:50
Phoenix Sky Harbor (PHX) 4
Effective 2024-12-07 through 2024-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
06:50
Denver (DEN)

09:00
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-12 through 2025-01-17
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

09:00
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-20 through 2025-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

09:00
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-02 through 2025-02-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

09:00
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-02-10
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

09:00
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-18 through 2025-02-24
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

09:00
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-03-03
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:05
Phoenix Sky Harbor (PHX) 4
Effective 2024-11-04 through 2024-11-06
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:05
Phoenix Sky Harbor (PHX) 4
Effective 2024-11-12 through 2024-11-20
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:05
Phoenix Sky Harbor (PHX) 4
Effective 2024-11-29 through 2024-12-06
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:05
Phoenix Sky Harbor (PHX) 4
Effective 2024-12-09 through 2024-12-18
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:05
Phoenix Sky Harbor (PHX) 4
Effective 2024-12-24 through 2025-01-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:05
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-01-06
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:10
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-13 through 2025-02-17
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
07:00
Denver (DEN)

09:10
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-21 through 2025-03-02
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
07:35
Denver (DEN)

09:40
Phoenix Sky Harbor (PHX) 4
Operates only on 2024-11-28
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
07:45
Denver (DEN)

09:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-11 through 2025-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
07:55
Denver (DEN)

10:05
Phoenix Sky Harbor (PHX) 4
Effective 2025-02-15 through 2025-03-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-01-12 through 2025-01-17
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-01-20 through 2025-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-02-02 through 2025-02-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

10:00
Ontario, Los Angeles (ONT) 4
Operates only on 2025-02-10
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-02-18 through 2025-02-24
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

10:00
Ontario, Los Angeles (ONT) 4
Operates only on 2025-03-03
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
10:05
San Diego (SAN) 1

13:00
Salt Lake City (SLC)
Valid until 2024-10-02
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
10:35
Ontario, Los Angeles (ONT) 4

11:55
San Jose (SJC) B
Effective 2025-01-12 through 2025-01-17
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
10:35
Ontario, Los Angeles (ONT) 4

11:55
San Jose (SJC) B
Effective 2025-01-20 through 2025-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
10:35
Ontario, Los Angeles (ONT) 4

11:55
San Jose (SJC) B
Effective 2025-02-02 through 2025-02-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
10:35
Ontario, Los Angeles (ONT) 4

11:55
San Jose (SJC) B
Operates only on 2025-02-10
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
10:35
Ontario, Los Angeles (ONT) 4

11:55
San Jose (SJC) B
Effective 2025-02-18 through 2025-02-24
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
10:35
Ontario, Los Angeles (ONT) 4

11:55
San Jose (SJC) B
Operates only on 2025-03-03
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
11:45
Nashville (BNA)

14:05
Austin (AUS)
Effective 2024-10-08 through 2024-10-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
12:35
Minneapolis/Saint Paul (MSP) 2

13:40
Denver (DEN)
Valid until 2024-09-19
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
12:35
Minneapolis/Saint Paul (MSP) 2

13:40
Denver (DEN)
Effective 2024-09-26 through 2024-09-30
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
12:55
Minneapolis/Saint Paul (MSP) 2

14:00
Denver (DEN)
Operates only on 2024-09-20
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
13:00
Nashville (BNA)

15:20
Austin (AUS)
Effective 2024-10-03 through 2024-10-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
13:00
Nashville (BNA)

15:20
Austin (AUS)
Operates only on 2024-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
13:30
Las Vegas Harry Reid (LAS) 1

14:55
Phoenix Sky Harbor (PHX) 4
Operates only on 2024-10-31
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
14:15
Austin (AUS)

14:50
Phoenix Sky Harbor (PHX) 4
Effective 2024-10-05 through 2024-11-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
14:20
Minneapolis/Saint Paul (MSP) 2

15:25
Denver (DEN)
Valid until 2024-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
16:05
Phoenix Sky Harbor (PHX) 4

19:10
Austin (AUS)
Effective 2024-11-23 through 2024-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
16:05
Phoenix Sky Harbor (PHX) 4

19:10
Austin (AUS)
Effective 2024-12-21 through 2025-01-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN1251
16:15
Baltimore (BWI)

17:30
Saint Louis (STL) 2
Effective 2024-10-06 through 2024-10-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN1251
16:25
Minneapolis/Saint Paul (MSP) 2

17:30
Denver (DEN)
Effective 2024-09-08 through 2024-09-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN1251
06:00
Love Field, Dallas (DAL) 1

09:55
Phoenix Sky Harbor (PHX) 4
Effective 2025-01-11 through 2025-02-08
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-01-12 through 2025-01-17
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-01-20 through 2025-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-02-02 through 2025-02-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

10:00
Ontario, Los Angeles (ONT) 4
Operates only on 2025-02-10
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

10:00
Ontario, Los Angeles (ONT) 4
Effective 2025-02-18 through 2025-02-24
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

10:00
Ontario, Los Angeles (ONT) 4
Operates only on 2025-03-03
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:10, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

11:55
San Jose (SJC) B
Effective 2025-01-12 through 2025-01-17
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:20, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

11:55
San Jose (SJC) B
Effective 2025-01-20 through 2025-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:20, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

11:55
San Jose (SJC) B
Effective 2025-02-02 through 2025-02-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:20, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

11:55
San Jose (SJC) B
Operates only on 2025-02-10
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:20, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

11:55
San Jose (SJC) B
Effective 2025-02-18 through 2025-02-24
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:20, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
09:35
Phoenix Sky Harbor (PHX) 4

11:55
San Jose (SJC) B
Operates only on 2025-03-03
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:20, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

11:55
San Jose (SJC) B
Effective 2025-01-12 through 2025-01-17
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 6:05, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

11:55
San Jose (SJC) B
Effective 2025-01-20 through 2025-01-26
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:05, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

11:55
San Jose (SJC) B
Effective 2025-02-02 through 2025-02-07
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 6:05, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

11:55
San Jose (SJC) B
Operates only on 2025-02-10
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:05, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

11:55
San Jose (SJC) B
Effective 2025-02-18 through 2025-02-24
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 6:05, 2-stop
Boeing 737-700 (73W)
Southwest Airlines WN1251
06:50
Denver (DEN)

11:55
San Jose (SJC) B
Operates only on 2025-03-03
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:05, 2-stop
Boeing 737-700 (73W)
This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Saint Louis (STL)
  • Denver (DEN) - Ontario, Los Angeles (ONT)
  • Denver (DEN) - Phoenix Sky Harbor (PHX)
  • Denver (DEN) - San Jose (SJC)
  • Las Vegas Harry Reid (LAS) - Phoenix Sky Harbor (PHX)
  • Love Field, Dallas (DAL) - Denver (DEN)
  • Love Field, Dallas (DAL) - Phoenix Sky Harbor (PHX)
  • Minneapolis/Saint Paul (MSP) - Denver (DEN)
  • Nashville (BNA) - Austin (AUS)
  • Ontario, Los Angeles (ONT) - San Jose (SJC)
  • Phoenix Sky Harbor (PHX) - Austin (AUS)
  • Phoenix Sky Harbor (PHX) - Ontario, Los Angeles (ONT)
  • Phoenix Sky Harbor (PHX) - San Jose (SJC)
  • San Diego (SAN) - Salt Lake City (SLC)
All Southwest Airlines flights
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