Southwest Airlines flight WN 3557: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Wed,Thu 06:00 Las Vegas Harry Reid (LAS) 1 10:40 Dallas Love Field (DAL) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Valid until 2026-01-01
Tue,Wed 06:00 San Francisco (SFO) 2 08:00 Phoenix Sky Harbor (PHX) 4 WN 3557 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-08-04 through 2026-09-30
Sun 06:15 San Francisco (SFO) 2 08:15 Phoenix Sky Harbor (PHX) 4 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 06:55 San Antonio (SAT) A 09:10 Nashville (BNA) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-06-04 through 2026-08-03
Sat 06:55 San Antonio (SAT) A 09:10 Nashville (BNA) WN 3557 Non-stop Boeing 737-700 (Scimitar Winglets) 2:15 Effective 2026-06-06 through 2026-08-01
Tue,Wed 07:00 San Antonio (SAT) A 09:15 Nashville (BNA) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-06-09 through 2026-07-29
Sat 07:35 San Francisco (SFO) 2 09:35 Phoenix Sky Harbor (PHX) 4 WN 3557 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-08-08 through 2026-09-26
Wed,Thu 11:20 Dallas Love Field (DAL) 1 13:05 Saint Louis (STL) 2 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Valid until 2026-01-01
Mon,Thu,Fri 11:55 San Francisco (SFO) 2 14:00 Phoenix Sky Harbor (PHX) 4 WN 3557 Non-stop Boeing 737-800 (73H) 2:05 Effective 2026-08-06 through 2026-09-28
Sun 17:35 Saint Louis (STL) 2 18:45 Nashville (BNA) WN 3557 Non-stop Boeing 737-800 (73H) 1:10 Effective 2026-04-12 through 2026-05-17
Sun 17:35 Saint Louis (STL) 2 18:45 Nashville (BNA) WN 3557 Non-stop Boeing 737-800 (73H) 1:10 Operates only on 2026-05-31
Sun 17:40 Saint Louis (STL) 2 18:50 Nashville (BNA) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Operates only on 2026-05-24
Tue,Wed 18:40 Saint Louis (STL) 2 19:50 Nashville (BNA) WN 3557 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-04-07 through 2026-06-03
Tue,Wed 18:50 Phoenix Sky Harbor (PHX) 4 00:05 Milwaukee (MKE) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-03-10 through 2026-04-01 The flight arrives 1 day after departure.
Mon,Thu,Fri 19:40 Phoenix Sky Harbor (PHX) 4 00:55 Milwaukee (MKE) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-03-09 through 2026-04-06 The flight arrives 1 day after departure.
Sat 20:20 San Jose (SJC) B 21:40 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-02-14 through 2026-02-28
Sat 20:20 Phoenix Sky Harbor (PHX) 4 01:30 Milwaukee (MKE) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-03-14 through 2026-04-04 The flight arrives 1 day after departure.
Thu,Fri,Sun 20:30 San Jose (SJC) B 21:50 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-01-11 through 2026-01-16
Mon,Sun 20:30 San Jose (SJC) B 21:50 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 20:30 San Jose (SJC) B 21:50 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-02-01 through 2026-02-06
Mon,Sun 20:30 San Jose (SJC) B 21:50 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 20:30 San Jose (SJC) B 21:50 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-02-17 through 2026-02-23
Mon 20:30 San Jose (SJC) B 21:50 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Operates only on 2026-03-02
Thu,Fri 20:40 Phoenix Sky Harbor (PHX) 4 00:55 Milwaukee (MKE) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-03-05 through 2026-03-06 The flight arrives 1 day after departure.
Sun 20:40 Phoenix Sky Harbor (PHX) 4 01:50 Milwaukee (MKE) WN 3557 Non-stop Boeing 737-800 (73H) 3:10 Effective 2026-03-08 through 2026-04-05 The flight arrives 1 day after departure.
Sat 21:20 Phoenix Sky Harbor (PHX) 4 01:30 Milwaukee (MKE) WN 3557 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Operates only on 2026-03-07 The flight arrives 1 day after departure.
Mon,Thu,Fri 21:25 San Jose (SJC) B 22:45 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 21:25 San Jose (SJC) B 22:45 San Diego (SAN) 1 WN 3557 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-02-20 through 2026-03-01
Non-Direct Flights:
Wed,Thu 06:00 Las Vegas Harry Reid (LAS) 1 13:05 Saint Louis (STL) 2 WN 3557 1-stop Boeing 737 MAX 8 (7M8) 5:05 Valid until 2026-01-01

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This flight number is listed as serving the following routes:

Dallas Love Field (DAL) - Saint Louis (STL)
Las Vegas Harry Reid (LAS) - Dallas Love Field (DAL)
Las Vegas Harry Reid (LAS) - Saint Louis (STL)
Phoenix Sky Harbor (PHX) - Milwaukee (MKE)
Saint Louis (STL) - Nashville (BNA)
San Antonio (SAT) - Nashville (BNA)
San Francisco (SFO) - Phoenix Sky Harbor (PHX)
San Jose (SJC) - San Diego (SAN)

All Southwest Airlines flights

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Southwest Airlines flight WN 3557: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3557

06:00

Las Vegas Harry Reid (LAS) 1

10:40

Dallas Love Field (DAL) 1

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

06:00

San Francisco (SFO) 2

08:00

Phoenix Sky Harbor (PHX) 4

Effective 2026-08-04 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3557

06:15

San Francisco (SFO) 2

08:15

Phoenix Sky Harbor (PHX) 4

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

06:55

San Antonio (SAT) A

09:10

Nashville (BNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3557

06:55

San Antonio (SAT) A

09:10

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3557

07:00

San Antonio (SAT) A

09:15

Nashville (BNA)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3557

07:35

San Francisco (SFO) 2

09:35

Phoenix Sky Harbor (PHX) 4

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3557

11:20

Dallas Love Field (DAL) 1

13:05

Saint Louis (STL) 2

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

11:55

San Francisco (SFO) 2

14:00

Phoenix Sky Harbor (PHX) 4

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3557

17:35

Saint Louis (STL) 2

18:45

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3557

17:35

Saint Louis (STL) 2

18:45

Nashville (BNA)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3557

17:40

Saint Louis (STL) 2

18:50

Nashville (BNA)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

18:40

Saint Louis (STL) 2

19:50

Nashville (BNA)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3557

18:50

Phoenix Sky Harbor (PHX) 4

00:05(+1)

Milwaukee (MKE)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3557

19:40

Phoenix Sky Harbor (PHX) 4

00:55(+1)

Milwaukee (MKE)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3557

20:20

San Jose (SJC) B

21:40

San Diego (SAN) 1

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

20:20

Phoenix Sky Harbor (PHX) 4

01:30(+1)

Milwaukee (MKE)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3557

20:30

San Jose (SJC) B

21:50

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

20:30

San Jose (SJC) B

21:50

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

20:30

San Jose (SJC) B

21:50

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

20:30

San Jose (SJC) B

21:50

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

20:30

San Jose (SJC) B

21:50

San Diego (SAN) 1

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

20:30

San Jose (SJC) B

21:50

San Diego (SAN) 1

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3557

20:40

Phoenix Sky Harbor (PHX) 4

00:55(+1)

Milwaukee (MKE)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3557

20:40

Phoenix Sky Harbor (PHX) 4

01:50(+1)

Milwaukee (MKE)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:10, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3557

21:20

Phoenix Sky Harbor (PHX) 4

01:30(+1)

Milwaukee (MKE)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3557

21:25

San Jose (SJC) B

22:45

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3557

21:25

San Jose (SJC) B

22:45

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN3557

06:00

Las Vegas Harry Reid (LAS) 1

13:05

Saint Louis (STL) 2

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 5:05, 1-stop
Boeing 737 MAX 8 (7M8)

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Parallax here

This flight number is listed as serving the following routes:

Dallas Love Field (DAL) - Saint Louis (STL)
Las Vegas Harry Reid (LAS) - Dallas Love Field (DAL)
Las Vegas Harry Reid (LAS) - Saint Louis (STL)
Phoenix Sky Harbor (PHX) - Milwaukee (MKE)
Saint Louis (STL) - Nashville (BNA)
San Antonio (SAT) - Nashville (BNA)
San Francisco (SFO) - Phoenix Sky Harbor (PHX)
San Jose (SJC) - San Diego (SAN)

All Southwest Airlines flights

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