Southwest Airlines flight WN 3556: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Sun 12:05 San Antonio (SAT) A 15:30 Atlanta (ATL) N WN 3556 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-06-07 through 2026-08-02
Sun 13:15 Saint Louis (STL) 2 14:25 Nashville (BNA) WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-04-12 through 2026-05-17
Sun 13:15 Saint Louis (STL) 2 14:25 Nashville (BNA) WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Operates only on 2026-05-31
Tue,Wed 14:30 Saint Louis (STL) 2 15:40 Nashville (BNA) WN 3556 Non-stop Boeing 737-800 (73H) 1:10 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 15:40 San Antonio (SAT) A 19:05 Atlanta (ATL) N WN 3556 Non-stop Boeing 737-800 (73H) 2:25 Effective 2026-06-04 through 2026-08-03
Thu 17:25 Kansas City (MCI) 21:00 Tampa (TPA) WN 3556 Non-stop Boeing 737-800 (73H) 2:35 Valid until 2026-01-01
Tue,Wed 18:00 San Jose (SJC) B 19:25 San Diego (SAN) 1 WN 3556 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 18:30 Ontario, Los Angeles (ONT) 4 19:35 Las Vegas Harry Reid (LAS) 1 WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-03-05 through 2026-04-06
Sun 18:30 Ontario, Los Angeles (ONT) 4 19:35 Las Vegas Harry Reid (LAS) 1 WN 3556 Non-stop Boeing 737 MAX 8 (7M8) 1:05 Effective 2026-03-08 through 2026-04-05
Mon-Fri,Sun 19:00 San Jose (SJC) B 20:25 San Diego (SAN) 1 WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-01-06 through 2026-02-11
Tue-Thu,Sun 19:00 San Jose (SJC) B 20:25 San Diego (SAN) 1 WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-15 through 2026-02-19
Mon-Wed 19:00 San Jose (SJC) B 20:25 San Diego (SAN) 1 WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-23 through 2026-03-04
Mon 19:25 Kansas City (MCI) 22:55 Tampa (TPA) WN 3556 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Operates only on 2026-01-05
Mon,Thu,Fri 19:25 San Jose (SJC) B 20:50 San Diego (SAN) 1 WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 19:25 San Jose (SJC) B 20:50 San Diego (SAN) 1 WN 3556 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-20 through 2026-03-01
Mon,Tue,Fri,Sun 19:35 Kansas City (MCI) 23:05 Tampa (TPA) WN 3556 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Valid until 2026-01-04
Sat 20:55 Kansas City (MCI) 00:25 Tampa (TPA) WN 3556 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Valid until 2026-01-03 The flight arrives 1 day after departure.
Daily 23:40 San Francisco (SFO) 2 05:50 Chicago Midway (MDW) WN 3556 Non-stop Boeing 737-800 (73H) 4:10 Effective 2026-08-04 through 2026-09-30 The flight arrives 1 day after departure.

This flight number is listed as serving the following routes:

Kansas City (MCI) - Tampa (TPA)
Ontario, Los Angeles (ONT) - Las Vegas Harry Reid (LAS)
Saint Louis (STL) - Nashville (BNA)
San Antonio (SAT) - Atlanta (ATL)
San Francisco (SFO) - Chicago Midway (MDW)
San Jose (SJC) - San Diego (SAN)

All Southwest Airlines flights

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Southwest Airlines flight WN 3556: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3556

12:05

San Antonio (SAT) A

15:30

Atlanta (ATL) N

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3556

13:15

Saint Louis (STL) 2

14:25

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3556

13:15

Saint Louis (STL) 2

14:25

Nashville (BNA)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3556

14:30

Saint Louis (STL) 2

15:40

Nashville (BNA)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3556

15:40

San Antonio (SAT) A

19:05

Atlanta (ATL) N

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3556

17:25

Kansas City (MCI)

21:00

Tampa (TPA)

Valid until 2026-01-01

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:35, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3556

18:00

San Jose (SJC) B

19:25

San Diego (SAN) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3556

18:30

Ontario, Los Angeles (ONT) 4

19:35

Las Vegas Harry Reid (LAS) 1

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3556

18:30

Ontario, Los Angeles (ONT) 4

19:35

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3556

19:00

San Jose (SJC) B

20:25

San Diego (SAN) 1

Effective 2026-01-06 through 2026-02-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3556

19:00

San Jose (SJC) B

20:25

San Diego (SAN) 1

Effective 2026-02-15 through 2026-02-19

Mon
-

Tue

Wed

Thu

Fri
-

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3556

19:00

San Jose (SJC) B

20:25

San Diego (SAN) 1

Effective 2026-02-23 through 2026-03-04

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3556

19:25

Kansas City (MCI)

22:55

Tampa (TPA)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3556

19:25

San Jose (SJC) B

20:50

San Diego (SAN) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3556

19:25

San Jose (SJC) B

20:50

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3556

19:35

Kansas City (MCI)

23:05

Tampa (TPA)

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3556

20:55

Kansas City (MCI)

00:25(+1)

Tampa (TPA)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Direct Flights:

Southwest Airlines WN3556

23:40

San Francisco (SFO) 2

05:50(+1)

Chicago Midway (MDW)

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

Mon

Tue

Wed

Thu

Fri

Sat

Sun

Duration: 4:10, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

This flight number is listed as serving the following routes:

Kansas City (MCI) - Tampa (TPA)
Ontario, Los Angeles (ONT) - Las Vegas Harry Reid (LAS)
Saint Louis (STL) - Nashville (BNA)
San Antonio (SAT) - Atlanta (ATL)
San Francisco (SFO) - Chicago Midway (MDW)
San Jose (SJC) - San Diego (SAN)

All Southwest Airlines flights

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