Southwest Airlines flight WN 4555: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Sat 05:40 Indianapolis (IND) 07:25 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-800 (73H) 2:45 Effective 2025-11-08 through 2025-11-15
Sat 05:40 Indianapolis (IND) 07:25 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-800 (73H) 2:45 Effective 2025-12-06 through 2025-12-13
Tue,Wed 13:00 Indianapolis (IND) 14:40 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-11-04 through 2025-11-12
Mon-Thu 13:00 Indianapolis (IND) 14:40 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-11-17 through 2025-11-20
Mon-Fri 13:00 Indianapolis (IND) 14:40 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-12-02 through 2025-12-11
Mon-Wed 13:00 Indianapolis (IND) 14:40 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-12-15 through 2025-12-17
Wed,Thu 13:00 Indianapolis (IND) 14:40 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-12-24 through 2026-01-01
Mon-Wed 13:40 Nashville (BNA) 15:55 Indianapolis (IND) WN 4555 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 13:40 Nashville (BNA) 15:55 Indianapolis (IND) WN 4555 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-12-19 through 2026-01-04
Sat 15:10 Denver (DEN) 18:30 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-11-22 through 2025-11-29
Sat 15:10 Denver (DEN) 18:30 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-12-20 through 2026-01-03
Mon,Thu,Fri,Sun 15:20 Nashville (BNA) 17:30 Indianapolis (IND) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 15:20 Nashville (BNA) 17:30 Indianapolis (IND) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-11-21 through 2025-11-28
Fri,Sun 15:20 Nashville (BNA) 17:30 Indianapolis (IND) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-12-07 through 2025-12-14
Thu 15:20 Nashville (BNA) 17:30 Indianapolis (IND) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Operates only on 2025-12-18
Mon 15:20 Nashville (BNA) 17:30 Indianapolis (IND) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Operates only on 2026-01-05
Mon,Thu,Fri,Sun 18:05 Indianapolis (IND) 19:45 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 18:05 Indianapolis (IND) 19:45 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2025-11-21 through 2025-11-28
Fri,Sun 18:05 Indianapolis (IND) 19:45 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2025-12-07 through 2025-12-14
Thu 18:05 Indianapolis (IND) 19:45 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Operates only on 2025-12-18
Mon 18:05 Indianapolis (IND) 19:45 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Operates only on 2026-01-05
Tue,Wed 18:25 Midway, Chicago (MDW) 20:35 Cincinnati (CVG) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Valid until 2025-06-04
Mon,Thu,Fri 18:30 Midway, Chicago (MDW) 20:40 Cincinnati (CVG) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Valid until 2025-06-02
Sun 18:55 Indianapolis (IND) 20:40 Houston Hobby (HOU) WN 4555 Non-stop Boeing 737-800 (73H) 2:45 Operates only on 2025-11-30
Sun 19:15 Midway, Chicago (MDW) 21:25 Cincinnati (CVG) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Operates only on 2025-05-25
Sun 19:20 Santa Ana (SNA) 20:40 San Jose (SJC) B WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 19:30 Santa Ana (SNA) 20:50 San Jose (SJC) B WN 4555 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-10-02 through 2025-10-31
Sun 22:05 Midway, Chicago (MDW) 00:15 Cincinnati (CVG) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2025-05-04 through 2025-05-18 The flight arrives 1 day after departure.
Sun 22:05 Midway, Chicago (MDW) 00:15 Cincinnati (CVG) WN 4555 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Operates only on 2025-06-01 The flight arrives 1 day after departure.
Non-Direct Flights:
Mon,Thu,Fri,Sun 15:20 Nashville (BNA) 19:45 Houston Hobby (HOU) WN 4555 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 15:20 Nashville (BNA) 19:45 Houston Hobby (HOU) WN 4555 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2025-11-21 through 2025-11-28
Fri,Sun 15:20 Nashville (BNA) 19:45 Houston Hobby (HOU) WN 4555 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2025-12-07 through 2025-12-14
Thu 15:20 Nashville (BNA) 19:45 Houston Hobby (HOU) WN 4555 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Operates only on 2025-12-18
Mon 15:20 Nashville (BNA) 19:45 Houston Hobby (HOU) WN 4555 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Operates only on 2026-01-05

This flight number is listed as serving the following routes:

Denver (DEN) - Houston Hobby (HOU)
Indianapolis (IND) - Houston Hobby (HOU)
Midway, Chicago (MDW) - Cincinnati (CVG)
Nashville (BNA) - Houston Hobby (HOU)
Nashville (BNA) - Indianapolis (IND)
Santa Ana (SNA) - San Jose (SJC)

All Southwest Airlines flights

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Southwest Airlines flight WN 4555: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4555

05:40

Indianapolis (IND)

07:25

Houston Hobby (HOU)

Effective 2025-11-08 through 2025-11-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:45, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4555

05:40

Indianapolis (IND)

07:25

Houston Hobby (HOU)

Effective 2025-12-06 through 2025-12-13

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:45, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4555

13:00

Indianapolis (IND)

14:40

Houston Hobby (HOU)

Effective 2025-11-04 through 2025-11-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

13:00

Indianapolis (IND)

14:40

Houston Hobby (HOU)

Effective 2025-11-17 through 2025-11-20

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

13:00

Indianapolis (IND)

14:40

Houston Hobby (HOU)

Effective 2025-12-02 through 2025-12-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN4555

13:00

Indianapolis (IND)

14:40

Houston Hobby (HOU)

Effective 2025-12-15 through 2025-12-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

13:00

Indianapolis (IND)

14:40

Houston Hobby (HOU)

Effective 2025-12-24 through 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

13:40

Nashville (BNA)

15:55

Indianapolis (IND)

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

13:40

Nashville (BNA)

15:55

Indianapolis (IND)

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN4555

15:10

Denver (DEN)

18:30

Houston Hobby (HOU)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4555

15:10

Denver (DEN)

18:30

Houston Hobby (HOU)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4555

15:20

Nashville (BNA)

17:30

Indianapolis (IND)

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Southwest Airlines WN4555

15:20

Nashville (BNA)

17:30

Indianapolis (IND)

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN4555

15:20

Nashville (BNA)

17:30

Indianapolis (IND)

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN4555

15:20

Nashville (BNA)

17:30

Indianapolis (IND)

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

15:20

Nashville (BNA)

17:30

Indianapolis (IND)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

18:05

Indianapolis (IND)

19:45

Houston Hobby (HOU)

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

18:05

Indianapolis (IND)

19:45

Houston Hobby (HOU)

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

18:05

Indianapolis (IND)

19:45

Houston Hobby (HOU)

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

18:05

Indianapolis (IND)

19:45

Houston Hobby (HOU)

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

18:05

Indianapolis (IND)

19:45

Houston Hobby (HOU)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

18:25

Midway, Chicago (MDW)

20:35

Cincinnati (CVG)

Valid until 2025-06-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN4555

18:30

Midway, Chicago (MDW)

20:40

Cincinnati (CVG)

Valid until 2025-06-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN4555

18:55

Indianapolis (IND)

20:40

Houston Hobby (HOU)

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:45, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN4555

19:15

Midway, Chicago (MDW)

21:25

Cincinnati (CVG)

Operates only on 2025-05-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN4555

19:20

Santa Ana (SNA)

20:40

San Jose (SJC) B

Effective 2025-10-05 through 2025-10-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

19:30

Santa Ana (SNA)

20:50

San Jose (SJC) B

Effective 2025-10-02 through 2025-10-31

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

22:05

Midway, Chicago (MDW)

00:15(+1)

Cincinnati (CVG)

Effective 2025-05-04 through 2025-05-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN4555

22:05

Midway, Chicago (MDW)

00:15(+1)

Cincinnati (CVG)

Operates only on 2025-06-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Non-Direct Flights:

Southwest Airlines WN4555

15:20

Nashville (BNA)

19:45

Houston Hobby (HOU)

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

15:20

Nashville (BNA)

19:45

Houston Hobby (HOU)

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

15:20

Nashville (BNA)

19:45

Houston Hobby (HOU)

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

15:20

Nashville (BNA)

19:45

Houston Hobby (HOU)

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN4555

15:20

Nashville (BNA)

19:45

Houston Hobby (HOU)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

This flight number is listed as serving the following routes:

Denver (DEN) - Houston Hobby (HOU)
Indianapolis (IND) - Houston Hobby (HOU)
Midway, Chicago (MDW) - Cincinnati (CVG)
Nashville (BNA) - Houston Hobby (HOU)
Nashville (BNA) - Indianapolis (IND)
Santa Ana (SNA) - San Jose (SJC)

All Southwest Airlines flights

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