Southwest Airlines flight WN 3977: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sat 05:50 Sacramento (SMF) B 07:15 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-11-22 through 2025-11-29
Sat 05:50 Sacramento (SMF) B 07:15 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-800 (73H) 1:25 Effective 2025-12-20 through 2026-01-03
Mon-Wed 06:15 Sacramento (SMF) B 07:40 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 06:15 Sacramento (SMF) B 07:40 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri 06:25 West Palm Beach (PBI) 07:25 Orlando (MCO)
WN 3977 Non-stop Boeing 737-700 (73W) 1:00 Effective 2025-08-07 through 2025-09-29
Mon,Thu,Fri,Sun 06:25 Sacramento (SMF) B 07:50 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 06:25 Sacramento (SMF) B 07:50 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-11-21 through 2025-11-28
Fri,Sun 06:25 Sacramento (SMF) B 07:50 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-12-07 through 2025-12-14
Thu 06:25 Sacramento (SMF) B 07:50 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2025-12-18
Mon 06:25 Sacramento (SMF) B 07:50 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2026-01-05
Tue,Wed 06:40 West Palm Beach (PBI) 07:40 Orlando (MCO)
WN 3977 Non-stop Boeing 737-700 (73W) 1:00 Effective 2025-08-05 through 2025-10-01
Sat,Sun 06:40 West Palm Beach (PBI) 07:40 Orlando (MCO)
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:00 Effective 2025-08-09 through 2025-08-30
Sat,Sun 06:40 West Palm Beach (PBI) 07:40 Orlando (MCO)
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:00 Effective 2025-09-06 through 2025-09-28
Sun 06:45 Sacramento (SMF) B 08:10 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2025-11-30
Tue,Wed 06:50 Sarasota/Bradenton (SRQ) 09:15 Baltimore (BWI)
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Valid until 2025-06-04
Sat 07:05 Sacramento (SMF) B 08:30 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-11-08 through 2025-11-15
Sat 07:05 Sacramento (SMF) B 08:30 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-12-06 through 2025-12-13
Sun 07:15 West Palm Beach (PBI) 08:15 Orlando (MCO)
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 1:00 Operates only on 2025-08-31
Tue,Wed 11:50 Sacramento (SMF) B 13:15 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-04 through 2025-11-12
Mon-Thu 11:50 Sacramento (SMF) B 13:15 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-11-17 through 2025-11-20
Mon-Fri 11:50 Sacramento (SMF) B 13:15 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-02 through 2025-12-11
Mon-Wed 11:50 Sacramento (SMF) B 13:15 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-15 through 2025-12-17
Wed,Thu 11:50 Sacramento (SMF) B 13:15 Ontario, Los Angeles (ONT) 4
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-12-24 through 2026-01-01
Fri 16:55 Saint Louis (STL) 2 19:00 Sacramento (SMF) B
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 4:05 Operates only on 2025-07-04
Sat 17:45 Sarasota/Bradenton (SRQ) 20:10 Baltimore (BWI)
WN 3977 Non-stop Boeing 737-800 (73H) 2:25 Effective 2025-05-24 through 2025-05-31
Mon,Thu,Fri 18:00 Sarasota/Bradenton (SRQ) 20:25 Baltimore (BWI)
WN 3977 Non-stop Boeing 737-700 (73W) 2:25 Valid until 2025-06-02
Sat 18:05 Sarasota/Bradenton (SRQ) 20:30 Baltimore (BWI)
WN 3977 Non-stop Boeing 737-700 (73W) 2:25 Valid until 2025-05-17
Sun 18:25 Cincinnati (CVG) 19:20 Denver (DEN)
WN 3977 Non-stop Boeing 737-700 (Scimitar Winglets) 2:55 Effective 2025-10-05 through 2025-10-26
Sat 19:15 Milwaukee (MKE) 20:55 Denver (DEN)
WN 3977 Non-stop Boeing 737-700 (73W) 2:40 Effective 2025-06-07 through 2025-08-02
Sun 19:20 Sarasota/Bradenton (SRQ) 21:45 Baltimore (BWI)
WN 3977 Non-stop Boeing 737-800 (73H) 2:25 Valid until 2025-05-18
Sun 19:20 Sarasota/Bradenton (SRQ) 21:45 Baltimore (BWI)
WN 3977 Non-stop Boeing 737-800 (73H) 2:25 Operates only on 2025-06-01
Tue,Wed 19:20 Milwaukee (MKE) 21:00 Denver (DEN)
WN 3977 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-06-10 through 2025-07-30
Mon,Thu,Fri 20:05 Milwaukee (MKE) 21:45 Denver (DEN)
WN 3977 Non-stop Boeing 737-800 (73H) 2:40 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 20:05 Milwaukee (MKE) 21:45 Denver (DEN)
WN 3977 Non-stop Boeing 737-800 (73H) 2:40 Effective 2025-07-07 through 2025-08-04
Sun 20:15 Milwaukee (MKE) 21:50 Denver (DEN)
WN 3977 Non-stop Boeing 737-800 (73H) 2:35 Effective 2025-06-08 through 2025-08-03
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3977: Multiple routes
Ad mobi flat here (320x100px) 6074960173 M FlightWNum Top Flat
Select flight date:  Show Calendar
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3977
05:50
Sacramento (SMF) B

07:15
Ontario, Los Angeles (ONT) 4
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 WN3977
05:50
Sacramento (SMF) B

07:15
Ontario, Los Angeles (ONT) 4
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3977
06:15
Sacramento (SMF) B

07:40
Ontario, Los Angeles (ONT) 4
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 WN3977
06:15
Sacramento (SMF) B

07:40
Ontario, Los Angeles (ONT) 4
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 WN3977
06:25
West Palm Beach (PBI)

07:25
Orlando (MCO)
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:00, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3977
06:25
Sacramento (SMF) B

07:50
Ontario, Los Angeles (ONT) 4
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
06:25
Sacramento (SMF) B

07:50
Ontario, Los Angeles (ONT) 4
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
06:25
Sacramento (SMF) B

07:50
Ontario, Los Angeles (ONT) 4
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
06:25
Sacramento (SMF) B

07:50
Ontario, Los Angeles (ONT) 4
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
06:25
Sacramento (SMF) B

07:50
Ontario, Los Angeles (ONT) 4
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
06:40
West Palm Beach (PBI)

07:40
Orlando (MCO)
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:00, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3977
06:40
West Palm Beach (PBI)

07:40
Orlando (MCO)
Effective 2025-08-09 through 2025-08-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 1:00, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
06:40
West Palm Beach (PBI)

07:40
Orlando (MCO)
Effective 2025-09-06 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 1:00, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
06:45
Sacramento (SMF) B

08:10
Ontario, Los Angeles (ONT) 4
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 WN3977
06:50
Sarasota/Bradenton (SRQ)

09:15
Baltimore (BWI)
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
07:05
Sacramento (SMF) B

08:30
Ontario, Los Angeles (ONT) 4
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
07:05
Sacramento (SMF) B

08:30
Ontario, Los Angeles (ONT) 4
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
07:15
West Palm Beach (PBI)

08:15
Orlando (MCO)
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:00, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
11:50
Sacramento (SMF) B

13:15
Ontario, Los Angeles (ONT) 4
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3977
11:50
Sacramento (SMF) B

13:15
Ontario, Los Angeles (ONT) 4
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3977
11:50
Sacramento (SMF) B

13:15
Ontario, Los Angeles (ONT) 4
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3977
11:50
Sacramento (SMF) B

13:15
Ontario, Los Angeles (ONT) 4
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3977
11:50
Sacramento (SMF) B

13:15
Ontario, Los Angeles (ONT) 4
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3977
16:55
Saint Louis (STL) 2

19:00
Sacramento (SMF) B
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 4:05, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
17:45
Sarasota/Bradenton (SRQ)

20:10
Baltimore (BWI)
Effective 2025-05-24 through 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3977
18:00
Sarasota/Bradenton (SRQ)

20:25
Baltimore (BWI)
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3977
18:05
Sarasota/Bradenton (SRQ)

20:30
Baltimore (BWI)
Valid until 2025-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3977
18:25
Cincinnati (CVG)

19:20
Denver (DEN)
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN3977
19:15
Milwaukee (MKE)

20:55
Denver (DEN)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN3977
19:20
Sarasota/Bradenton (SRQ)

21:45
Baltimore (BWI)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3977
19:20
Sarasota/Bradenton (SRQ)

21:45
Baltimore (BWI)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3977
19:20
Milwaukee (MKE)

21:00
Denver (DEN)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN3977
20:05
Milwaukee (MKE)

21:45
Denver (DEN)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3977
20:05
Milwaukee (MKE)

21:45
Denver (DEN)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN3977
20:15
Milwaukee (MKE)

21:50
Denver (DEN)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-800 (73H)
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This flight number is listed as serving the following routes:
  • Cincinnati (CVG) - Denver (DEN)
  • Milwaukee (MKE) - Denver (DEN)
  • Sacramento (SMF) - Ontario, Los Angeles (ONT)
  • Saint Louis (STL) - Sacramento (SMF)
  • Sarasota/Bradenton (SRQ) - Baltimore (BWI)
  • West Palm Beach (PBI) - Orlando (MCO)
All Southwest Airlines flights
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