Southwest Airlines flight WN 4253: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sat 05:30 Salt Lake City (SLC) 09:45 Houston Hobby (HOU) WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 3:15 Operates only on 2026-01-03
Sun 06:05 San Jose (SJC) B 07:30 Ontario, Los Angeles (ONT) 4 WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-04-12 through 2026-05-17
Sun 06:05 San Jose (SJC) B 07:30 Ontario, Los Angeles (ONT) 4 WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2026-05-31
Sat 06:50 San Jose (SJC) B 08:05 Ontario, Los Angeles (ONT) 4 WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-11 through 2026-05-30
Mon,Thu,Fri 07:10 San Jose (SJC) B 08:25 Ontario, Los Angeles (ONT) 4 WN 4253 Non-stop Boeing 737-800 (73H) 1:15 Effective 2026-04-09 through 2026-06-01
Mon,Thu,Fri 07:45 Phoenix Sky Harbor (PHX) 4 12:00 San Antonio (SAT) A WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-03-09 through 2026-04-06
Sat 07:45 Phoenix Sky Harbor (PHX) 4 12:00 San Antonio (SAT) A WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-03-14 through 2026-04-04
Sun 07:55 Phoenix Sky Harbor (PHX) 4 12:10 San Antonio (SAT) A WN 4253 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-03-08 through 2026-04-05
Sun 08:10 San Jose (SJC) B 09:25 Ontario, Los Angeles (ONT) 4 WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2026-05-24
Tue,Wed 08:40 Phoenix Sky Harbor (PHX) 4 12:50 San Antonio (SAT) A WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-03-10 through 2026-04-01
Sat 08:40 Ontario, Los Angeles (ONT) 4 09:55 Phoenix Sky Harbor (PHX) 4 WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-11 through 2026-05-30
Thu,Fri 08:45 Phoenix Sky Harbor (PHX) 4 12:00 San Antonio (SAT) A WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-03-05 through 2026-03-06
Sat 08:45 Phoenix Sky Harbor (PHX) 4 12:00 San Antonio (SAT) A WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Operates only on 2026-03-07
Mon,Thu,Fri 12:25 Chicago Midway (MDW) 16:00 Sarasota/Bradenton (SRQ) WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2026-08-06 through 2026-09-28
Tue,Wed 12:30 San Jose (SJC) B 13:45 Ontario, Los Angeles (ONT) 4 WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Effective 2026-04-07 through 2026-06-03
Sat 12:35 San Antonio (SAT) A 15:50 Atlanta (ATL) N WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-03-07 through 2026-04-04
Sun 15:50 Nashville (BNA) 18:00 San Diego (SAN) 1 WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2026-06-07 through 2026-08-02
Tue,Wed 16:05 Nashville (BNA) 18:15 San Diego (SAN) 1 WN 4253 Non-stop Boeing 737-700 (Scimitar Winglets) 4:10 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 17:05 Nashville (BNA) 19:15 San Diego (SAN) 1 WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2026-06-04 through 2026-08-03
Mon,Tue,Fri,Sun 19:35 San Diego (SAN) 1 21:15 San Francisco (SFO) 2 WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Valid until 2026-01-04
Thu 19:40 San Diego (SAN) 1 21:20 San Francisco (SFO) 2 WN 4253 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Valid until 2026-01-01
Mon 20:30 San Diego (SAN) 1 22:10 San Francisco (SFO) 2 WN 4253 Non-stop Boeing 737-800 (73H) 1:40 Operates only on 2026-01-05
Non-Direct Flights:
Sat 06:50 San Jose (SJC) B 09:55 Phoenix Sky Harbor (PHX) 4 WN 4253 1-stop Boeing 737-700 (Scimitar Winglets) 3:05 Effective 2026-04-11 through 2026-05-30
Sat 07:45 Phoenix Sky Harbor (PHX) 4 15:50 Atlanta (ATL) N WN 4253 1-stop Boeing 737-700 (Scimitar Winglets) 5:05 Effective 2026-03-14 through 2026-04-04
Sat 08:45 Phoenix Sky Harbor (PHX) 4 15:50 Atlanta (ATL) N WN 4253 1-stop Boeing 737-700 (Scimitar Winglets) 5:05 Operates only on 2026-03-07

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Parallax here

This flight number is listed as serving the following routes:

Chicago Midway (MDW) - Sarasota/Bradenton (SRQ)
Nashville (BNA) - San Diego (SAN)
Ontario, Los Angeles (ONT) - Phoenix Sky Harbor (PHX)
Phoenix Sky Harbor (PHX) - Atlanta (ATL)
Phoenix Sky Harbor (PHX) - San Antonio (SAT)
Salt Lake City (SLC) - Houston Hobby (HOU)
San Antonio (SAT) - Atlanta (ATL)
San Diego (SAN) - San Francisco (SFO)
San Jose (SJC) - Ontario, Los Angeles (ONT)
San Jose (SJC) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

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Southwest Airlines flight WN 4253: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4253

05:30

Salt Lake City (SLC)

09:45

Houston Hobby (HOU)

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

06:05

San Jose (SJC) B

07:30

Ontario, Los Angeles (ONT) 4

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

06:05

San Jose (SJC) B

07:30

Ontario, Los Angeles (ONT) 4

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

06:50

San Jose (SJC) B

08:05

Ontario, Los Angeles (ONT) 4

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

07:10

San Jose (SJC) B

08:25

Ontario, Los Angeles (ONT) 4

Effective 2026-04-09 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4253

07:45

Phoenix Sky Harbor (PHX) 4

12:00

San Antonio (SAT) A

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

07:45

Phoenix Sky Harbor (PHX) 4

12:00

San Antonio (SAT) A

Effective 2026-03-14 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

07:55

Phoenix Sky Harbor (PHX) 4

12:10

San Antonio (SAT) A

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4253

08:10

San Jose (SJC) B

09:25

Ontario, Los Angeles (ONT) 4

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

08:40

Phoenix Sky Harbor (PHX) 4

12:50

San Antonio (SAT) A

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

08:40

Ontario, Los Angeles (ONT) 4

09:55

Phoenix Sky Harbor (PHX) 4

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

08:45

Phoenix Sky Harbor (PHX) 4

12:00

San Antonio (SAT) A

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

08:45

Phoenix Sky Harbor (PHX) 4

12:00

San Antonio (SAT) A

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

12:25

Chicago Midway (MDW)

16:00

Sarasota/Bradenton (SRQ)

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

12:30

San Jose (SJC) B

13:45

Ontario, Los Angeles (ONT) 4

Effective 2026-04-07 through 2026-06-03

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

12:35

San Antonio (SAT) A

15:50

Atlanta (ATL) N

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:15, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

15:50

Nashville (BNA)

18:00

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

16:05

Nashville (BNA)

18:15

San Diego (SAN) 1

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4253

17:05

Nashville (BNA)

19:15

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4253

19:35

San Diego (SAN) 1

21:15

San Francisco (SFO) 2

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4253

19:40

San Diego (SAN) 1

21:20

San Francisco (SFO) 2

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4253

20:30

San Diego (SAN) 1

22:10

San Francisco (SFO) 2

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:40, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN4253

06:50

San Jose (SJC) B

09:55

Phoenix Sky Harbor (PHX) 4

Effective 2026-04-11 through 2026-05-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN4253

07:45

Phoenix Sky Harbor (PHX) 4

15:50

Atlanta (ATL) N

Effective 2026-03-14 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN4253

08:45

Phoenix Sky Harbor (PHX) 4

15:50

Atlanta (ATL) N

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 5:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

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Parallax here

This flight number is listed as serving the following routes:

Chicago Midway (MDW) - Sarasota/Bradenton (SRQ)
Nashville (BNA) - San Diego (SAN)
Ontario, Los Angeles (ONT) - Phoenix Sky Harbor (PHX)
Phoenix Sky Harbor (PHX) - Atlanta (ATL)
Phoenix Sky Harbor (PHX) - San Antonio (SAT)
Salt Lake City (SLC) - Houston Hobby (HOU)
San Antonio (SAT) - Atlanta (ATL)
San Diego (SAN) - San Francisco (SFO)
San Jose (SJC) - Ontario, Los Angeles (ONT)
San Jose (SJC) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

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