Southwest Airlines flight WN 4001: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 07:40 Pittsburgh (PIT) 09:50 Houston Hobby (HOU)
WN 4001 Non-stop Boeing 737-700 (73W) 3:10 Valid until 2025-05-18
Sun 07:40 Pittsburgh (PIT) 09:50 Houston Hobby (HOU)
WN 4001 Non-stop Boeing 737-700 (73W) 3:10 Operates only on 2025-06-01
Sat 12:20 Pittsburgh (PIT) 14:30 Houston Hobby (HOU)
WN 4001 Non-stop Boeing 737-800 (73H) 3:10 Valid until 2025-05-31
Tue,Wed 13:05 Pittsburgh (PIT) 15:15 Houston Hobby (HOU)
WN 4001 Non-stop Boeing 737-800 (73H) 3:10 Valid until 2025-06-04
Sat 14:10 Ontario, Los Angeles (ONT) 4 15:40 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-11-08 through 2025-11-15
Sat 14:10 Ontario, Los Angeles (ONT) 4 15:40 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-12-06 through 2025-12-13
Sun 15:30 Love Field, Dallas (DAL) 1 17:50 Minneapolis/Saint Paul (MSP) 2
WN 4001 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2025-05-25
Sat 16:05 Philadelphia (PHL) E 17:20 Nashville (BNA)
WN 4001 Non-stop Boeing 737-800 (73H) 2:15 Effective 2025-08-09 through 2025-09-27
Sun 17:30 Philadelphia (PHL) E 18:40 Nashville (BNA)
WN 4001 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-08-10 through 2025-08-24
Sun 17:30 Philadelphia (PHL) E 18:40 Nashville (BNA)
WN 4001 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-09-07 through 2025-09-28
Mon,Thu,Fri 17:35 Philadelphia (PHL) E 18:45 Nashville (BNA)
WN 4001 Non-stop Boeing 737-800 (73H) 2:10 Effective 2025-08-07 through 2025-09-29
Mon,Thu,Fri 17:55 Pittsburgh (PIT) 20:05 Houston Hobby (HOU)
WN 4001 Non-stop Boeing 737-700 (73W) 3:10 Valid until 2025-06-02
Mon,Thu,Fri,Sun 18:30 Ontario, Los Angeles (ONT) 4 20:00 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 18:30 Ontario, Los Angeles (ONT) 4 20:00 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-11-21 through 2025-11-28
Fri,Sun 18:30 Ontario, Los Angeles (ONT) 4 20:00 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-12-07 through 2025-12-14
Thu 18:30 Ontario, Los Angeles (ONT) 4 20:00 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2025-12-18
Mon 18:30 Ontario, Los Angeles (ONT) 4 20:00 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2026-01-05
Sun 18:40 Ontario, Los Angeles (ONT) 4 20:05 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2025-11-30
Sun 18:45 Philadelphia (PHL) E 20:00 Nashville (BNA)
WN 4001 Non-stop Boeing 737-800 (73H) 2:15 Operates only on 2025-08-31
Tue,Wed 18:50 Philadelphia (PHL) E 20:05 Nashville (BNA)
WN 4001 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2025-08-05 through 2025-10-01
Mon-Wed 19:20 Ontario, Los Angeles (ONT) 4 20:45 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 19:20 Ontario, Los Angeles (ONT) 4 20:45 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-19 through 2026-01-04
Sun 20:40 Sacramento (SMF) B 23:20 Salt Lake City (SLC)
WN 4001 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Operates only on 2025-11-30
Sat 20:50 Ontario, Los Angeles (ONT) 4 22:15 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-11-22 through 2025-11-29
Sat 20:50 Ontario, Los Angeles (ONT) 4 22:15 Sacramento (SMF) B
WN 4001 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-12-20 through 2026-01-03
Non-Direct Flights:
Sun 18:40 Ontario, Los Angeles (ONT) 4 23:20 Salt Lake City (SLC)
WN 4001 1-stop Boeing 737-700 (Scimitar Winglets) 3:40 Operates only on 2025-11-30
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4001: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4001
07:40
Pittsburgh (PIT)

09:50
Houston Hobby (HOU)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4001
07:40
Pittsburgh (PIT)

09:50
Houston Hobby (HOU)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4001
12:20
Pittsburgh (PIT)

14:30
Houston Hobby (HOU)
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4001
13:05
Pittsburgh (PIT)

15:15
Houston Hobby (HOU)
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4001
14:10
Ontario, Los Angeles (ONT) 4

15:40
Sacramento (SMF) B
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4001
14:10
Ontario, Los Angeles (ONT) 4

15:40
Sacramento (SMF) B
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4001
15:30
Love Field, Dallas (DAL) 1

17:50
Minneapolis/Saint Paul (MSP) 2
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4001
16:05
Philadelphia (PHL) E

17:20
Nashville (BNA)
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4001
17:30
Philadelphia (PHL) E

18:40
Nashville (BNA)
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4001
17:30
Philadelphia (PHL) E

18:40
Nashville (BNA)
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4001
17:35
Philadelphia (PHL) E

18:45
Nashville (BNA)
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4001
17:55
Pittsburgh (PIT)

20:05
Houston Hobby (HOU)
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:10, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4001
18:30
Ontario, Los Angeles (ONT) 4

20:00
Sacramento (SMF) B
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
18:30
Ontario, Los Angeles (ONT) 4

20:00
Sacramento (SMF) B
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
18:30
Ontario, Los Angeles (ONT) 4

20:00
Sacramento (SMF) B
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
18:30
Ontario, Los Angeles (ONT) 4

20:00
Sacramento (SMF) B
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
18:30
Ontario, Los Angeles (ONT) 4

20:00
Sacramento (SMF) B
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
18:40
Ontario, Los Angeles (ONT) 4

20:05
Sacramento (SMF) B
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
18:45
Philadelphia (PHL) E

20:00
Nashville (BNA)
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4001
18:50
Philadelphia (PHL) E

20:05
Nashville (BNA)
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4001
19:20
Ontario, Los Angeles (ONT) 4

20:45
Sacramento (SMF) B
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
19:20
Ontario, Los Angeles (ONT) 4

20:45
Sacramento (SMF) B
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
20:40
Sacramento (SMF) B

23:20
Salt Lake City (SLC)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4001
20:50
Ontario, Los Angeles (ONT) 4

22:15
Sacramento (SMF) B
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4001
20:50
Ontario, Los Angeles (ONT) 4

22:15
Sacramento (SMF) B
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4001
18:40
Ontario, Los Angeles (ONT) 4

23:20
Salt Lake City (SLC)
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:40, 1-stop
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
  • Love Field, Dallas (DAL) - Minneapolis/Saint Paul (MSP)
  • Ontario, Los Angeles (ONT) - Sacramento (SMF)
  • Ontario, Los Angeles (ONT) - Salt Lake City (SLC)
  • Philadelphia (PHL) - Nashville (BNA)
  • Pittsburgh (PIT) - Houston Hobby (HOU)
  • Sacramento (SMF) - Salt Lake City (SLC)
All Southwest Airlines flights
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