Southwest Airlines flight WN 4851: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 05:20 Ontario, Los Angeles (ONT) 4 11:00 Nashville (BNA)
WN 4851 Non-stop Boeing 737-800 (73H) 3:40 Valid until 2026-01-03
Mon,Tue,Fri,Sun 06:10 Ontario, Los Angeles (ONT) 4 11:55 Nashville (BNA)
WN 4851 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Valid until 2026-01-04
Mon,Thu,Fri 09:45 Sacramento (SMF) B 11:10 Ontario, Los Angeles (ONT) 4
WN 4851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri 09:45 Sacramento (SMF) B 11:10 Ontario, Los Angeles (ONT) 4
WN 4851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-20 through 2026-02-27
Sun 10:15 San Jose (SJC) B 11:50 Las Vegas Harry Reid (LAS) 1
WN 4851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 11:50 Ontario, Los Angeles (ONT) 4 14:05 Phoenix Sky Harbor (PHX) 4
WN 4851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-02-12 through 2026-02-16
Thu,Fri 11:50 Ontario, Los Angeles (ONT) 4 14:05 Phoenix Sky Harbor (PHX) 4
WN 4851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-02-20 through 2026-02-27
Mon,Thu,Fri 20:30 San Jose (SJC) B 22:00 Las Vegas Harry Reid (LAS) 1
WN 4851 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-08-06 through 2026-09-28
Mon,Thu,Fri 21:40 Salt Lake City (SLC) 23:05 Denver (DEN)
WN 4851 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-06-04 through 2026-08-03
Non-Direct Flights:
Mon,Thu,Fri 09:45 Sacramento (SMF) B 14:05 Phoenix Sky Harbor (PHX) 4
WN 4851 1-stop Boeing 737-700 (Scimitar Winglets) 3:20 Effective 2026-02-12 through 2026-02-16
Thu,Fri 09:45 Sacramento (SMF) B 14:05 Phoenix Sky Harbor (PHX) 4
WN 4851 1-stop Boeing 737-700 (Scimitar Winglets) 3:20 Effective 2026-02-20 through 2026-02-27
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4851: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4851
05:20
Ontario, Los Angeles (ONT) 4

11:00
Nashville (BNA)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4851
06:10
Ontario, Los Angeles (ONT) 4

11:55
Nashville (BNA)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4851
09:45
Sacramento (SMF) B

11:10
Ontario, Los Angeles (ONT) 4
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 WN4851
09:45
Sacramento (SMF) B

11:10
Ontario, Los Angeles (ONT) 4
Effective 2026-02-20 through 2026-02-27
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4851
10:15
San Jose (SJC) B

11:50
Las Vegas Harry Reid (LAS) 1
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4851
11:50
Ontario, Los Angeles (ONT) 4

14:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4851
11:50
Ontario, Los Angeles (ONT) 4

14:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-02-20 through 2026-02-27
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4851
20:30
San Jose (SJC) B

22:00
Las Vegas Harry Reid (LAS) 1
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4851
21:40
Salt Lake City (SLC)

23:05
Denver (DEN)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4851
09:45
Sacramento (SMF) B

14:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4851
09:45
Sacramento (SMF) B

14:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-02-20 through 2026-02-27
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:20, 1-stop
Boeing 737-700 (Scimitar Winglets)
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Parallax here -
This flight number is listed as serving the following routes:
  • Ontario, Los Angeles (ONT) - Nashville (BNA)
  • Ontario, Los Angeles (ONT) - Phoenix Sky Harbor (PHX)
  • Sacramento (SMF) - Ontario, Los Angeles (ONT)
  • Sacramento (SMF) - Phoenix Sky Harbor (PHX)
  • Salt Lake City (SLC) - Denver (DEN)
  • San Jose (SJC) - Las Vegas Harry Reid (LAS)
All Southwest Airlines flights
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