Southwest Airlines flight WN 4257: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Mon 07:00 San Diego (SAN) 1 08:35 San Jose (SJC) B WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Operates only on 2026-01-05
Mon,Tue,Fri,Sun 07:30 San Diego (SAN) 1 09:00 San Jose (SJC) B WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Valid until 2026-01-04
Sat 08:10 San Diego (SAN) 1 09:50 San Jose (SJC) B WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Valid until 2026-01-03
Sun 10:20 Dallas Love Field (DAL) 1 11:55 Kansas City (MCI) WN 4257 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-06-07 through 2026-08-02
Sun 12:40 Memphis (MEM) 15:50 Baltimore (BWI) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-08-09 through 2026-09-27
Sat 13:20 Tampa (TPA) 15:45 Indianapolis (IND) WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-07 through 2026-04-04
Tue,Wed 13:50 Tampa (TPA) 16:20 Indianapolis (IND) WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2026-03-10 through 2026-04-01
Sat 13:50 Dallas Love Field (DAL) 1 14:55 Oklahoma City (OKC) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-08-08 through 2026-09-26
Mon-Fri 14:00 San Francisco (SFO) 2 17:25 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 14:00 San Francisco (SFO) 2 17:25 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-01-18 through 2026-01-23
Mon-Fri 14:00 San Francisco (SFO) 2 17:25 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 14:00 San Francisco (SFO) 2 17:25 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-02-08 through 2026-02-11
Tue,Wed 14:00 San Francisco (SFO) 2 17:25 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-02-18 through 2026-03-04
Thu,Fri,Sun 15:25 San Francisco (SFO) 2 18:50 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-01-11 through 2026-01-16
Mon,Sun 15:25 San Francisco (SFO) 2 18:50 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 15:25 San Francisco (SFO) 2 18:50 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-02-01 through 2026-02-06
Mon,Sun 15:25 San Francisco (SFO) 2 18:50 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 15:25 San Francisco (SFO) 2 18:50 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-02-17 through 2026-02-23
Mon 15:25 San Francisco (SFO) 2 18:50 Denver (DEN) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Operates only on 2026-03-02
Mon,Thu,Fri 15:40 San Francisco (SFO) 2 19:05 Denver (DEN) WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 15:40 San Francisco (SFO) 2 19:05 Denver (DEN) WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-20 through 2026-03-01
Sat 20:35 Dallas Love Field (DAL) 1 22:05 Kansas City (MCI) WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 21:20 Dallas Love Field (DAL) 1 22:50 Kansas City (MCI) WN 4257 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-06-04 through 2026-08-03
Thu,Fri 21:25 San Antonio (SAT) A 23:00 Phoenix Sky Harbor (PHX) 4 WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-03-05 through 2026-03-06
Mon,Thu,Fri 21:25 San Antonio (SAT) A 22:00 Phoenix Sky Harbor (PHX) 4 WN 4257 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-03-09 through 2026-04-06

This flight number is listed as serving the following routes:

Dallas Love Field (DAL) - Kansas City (MCI)
Dallas Love Field (DAL) - Oklahoma City (OKC)
Memphis (MEM) - Baltimore (BWI)
San Antonio (SAT) - Phoenix Sky Harbor (PHX)
San Diego (SAN) - San Jose (SJC)
San Francisco (SFO) - Denver (DEN)
Tampa (TPA) - Indianapolis (IND)

All Southwest Airlines flights

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Southwest Airlines flight WN 4257: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4257

07:00

San Diego (SAN) 1

08:35

San Jose (SJC) B

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

07:30

San Diego (SAN) 1

09:00

San Jose (SJC) B

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

08:10

San Diego (SAN) 1

09:50

San Jose (SJC) B

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

10:20

Dallas Love Field (DAL) 1

11:55

Kansas City (MCI)

Effective 2026-06-07 through 2026-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4257

12:40

Memphis (MEM)

15:50

Baltimore (BWI)

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

13:20

Tampa (TPA)

15:45

Indianapolis (IND)

Effective 2026-03-07 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

13:50

Tampa (TPA)

16:20

Indianapolis (IND)

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

13:50

Dallas Love Field (DAL) 1

14:55

Oklahoma City (OKC)

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

14:00

San Francisco (SFO) 2

17:25

Denver (DEN)

Effective 2026-01-06 through 2026-01-14

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

14:00

San Francisco (SFO) 2

17:25

Denver (DEN)

Effective 2026-01-18 through 2026-01-23

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

14:00

San Francisco (SFO) 2

17:25

Denver (DEN)

Effective 2026-01-26 through 2026-02-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

14:00

San Francisco (SFO) 2

17:25

Denver (DEN)

Effective 2026-02-08 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

14:00

San Francisco (SFO) 2

17:25

Denver (DEN)

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

15:25

San Francisco (SFO) 2

18:50

Denver (DEN)

Effective 2026-01-11 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

15:25

San Francisco (SFO) 2

18:50

Denver (DEN)

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

15:25

San Francisco (SFO) 2

18:50

Denver (DEN)

Effective 2026-02-01 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

15:25

San Francisco (SFO) 2

18:50

Denver (DEN)

Effective 2026-02-09 through 2026-02-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

15:25

San Francisco (SFO) 2

18:50

Denver (DEN)

Effective 2026-02-17 through 2026-02-23

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

15:25

San Francisco (SFO) 2

18:50

Denver (DEN)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

15:40

San Francisco (SFO) 2

19:05

Denver (DEN)

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

15:40

San Francisco (SFO) 2

19:05

Denver (DEN)

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

20:35

Dallas Love Field (DAL) 1

22:05

Kansas City (MCI)

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

21:20

Dallas Love Field (DAL) 1

22:50

Kansas City (MCI)

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4257

21:25

San Antonio (SAT) A

23:00

Phoenix Sky Harbor (PHX) 4

Effective 2026-03-05 through 2026-03-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4257

21:25

San Antonio (SAT) A

22:00

Phoenix Sky Harbor (PHX) 4

Effective 2026-03-09 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

This flight number is listed as serving the following routes:

Dallas Love Field (DAL) - Kansas City (MCI)
Dallas Love Field (DAL) - Oklahoma City (OKC)
Memphis (MEM) - Baltimore (BWI)
San Antonio (SAT) - Phoenix Sky Harbor (PHX)
San Diego (SAN) - San Jose (SJC)
San Francisco (SFO) - Denver (DEN)
Tampa (TPA) - Indianapolis (IND)

All Southwest Airlines flights

Feedback - Disclaimer - Privacy