Southwest Airlines flight WN 4129: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:50 Ontario, Los Angeles (ONT) 4 09:00 Denver (DEN)
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-03-05 through 2026-04-06
Sat,Sun 06:25 Ontario, Los Angeles (ONT) 4 09:40 Denver (DEN)
WN 4129 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-03-07 through 2026-04-05
Tue,Wed 06:25 Ontario, Los Angeles (ONT) 4 09:40 Denver (DEN)
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-03-10 through 2026-04-01
Mon,Tue,Fri,Sun 07:25 Las Vegas Harry Reid (LAS) 1 14:35 Tampa (TPA)
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Valid until 2026-01-04
Mon,Thu,Fri 11:30 San Diego (SAN) 1 13:15 Sacramento (SMF) B
WN 4129 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-04-09 through 2026-06-01
Sat 11:30 San Diego (SAN) 1 13:15 Sacramento (SMF) B
WN 4129 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-04-11 through 2026-05-30
Mon 12:25 Phoenix Sky Harbor (PHX) 4 14:10 Denver (DEN)
WN 4129 Non-stop Boeing 737-800 (73H) 1:45 Operates only on 2026-01-05
Tue,Wed 13:00 San Diego (SAN) 1 14:45 Sacramento (SMF) B
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-04-07 through 2026-06-03
Tue,Wed 14:30 Dallas Love Field (DAL) 1 14:55 Phoenix Sky Harbor (PHX) 4
WN 4129 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-06-09 through 2026-07-29
Sat 14:50 Las Vegas Harry Reid (LAS) 1 16:05 Long Beach (LGB)
WN 4129 Non-stop Boeing 737-800 (73H) 1:15 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 15:20 Dallas Love Field (DAL) 1 15:45 Phoenix Sky Harbor (PHX) 4
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-06-04 through 2026-08-03
Sun 15:25 Las Vegas Harry Reid (LAS) 1 20:05 Dallas Love Field (DAL) 1
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-04-12 through 2026-05-17
Sun 15:25 Las Vegas Harry Reid (LAS) 1 20:05 Dallas Love Field (DAL) 1
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-05-31
Tue,Wed 17:05 Las Vegas Harry Reid (LAS) 1 18:20 Long Beach (LGB)
WN 4129 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-08-04 through 2026-09-30
Sat 17:20 Indianapolis (IND) 20:00 Fort Lauderdale (FLL) 1
WN 4129 Non-stop Boeing 737-800 (73H) 2:40 Valid until 2026-01-03
Sun 17:50 Las Vegas Harry Reid (LAS) 1 19:00 Long Beach (LGB)
WN 4129 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-08-09 through 2026-09-27
Sat 20:10 Saint Louis (STL) 2 23:30 Sarasota/Bradenton (SRQ)
WN 4129 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-06 through 2026-08-01
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4129: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4129
05:50
Ontario, Los Angeles (ONT) 4

09:00
Denver (DEN)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4129
06:25
Ontario, Los Angeles (ONT) 4

09:40
Denver (DEN)
Effective 2026-03-07 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4129
06:25
Ontario, Los Angeles (ONT) 4

09:40
Denver (DEN)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4129
07:25
Las Vegas Harry Reid (LAS) 1

14:35
Tampa (TPA)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4129
11:30
San Diego (SAN) 1

13:15
Sacramento (SMF) B
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4129
11:30
San Diego (SAN) 1

13:15
Sacramento (SMF) B
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4129
12:25
Phoenix Sky Harbor (PHX) 4

14:10
Denver (DEN)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4129
13:00
San Diego (SAN) 1

14:45
Sacramento (SMF) B
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4129
14:30
Dallas Love Field (DAL) 1

14:55
Phoenix Sky Harbor (PHX) 4
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4129
14:50
Las Vegas Harry Reid (LAS) 1

16:05
Long Beach (LGB)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4129
15:20
Dallas Love Field (DAL) 1

15:45
Phoenix Sky Harbor (PHX) 4
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4129
15:25
Las Vegas Harry Reid (LAS) 1

20:05
Dallas Love Field (DAL) 1
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4129
15:25
Las Vegas Harry Reid (LAS) 1

20:05
Dallas Love Field (DAL) 1
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4129
17:05
Las Vegas Harry Reid (LAS) 1

18:20
Long Beach (LGB)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4129
17:20
Indianapolis (IND)

20:00
Fort Lauderdale (FLL) 1
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4129
17:50
Las Vegas Harry Reid (LAS) 1

19:00
Long Beach (LGB)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4129
20:10
Saint Louis (STL) 2

23:30
Sarasota/Bradenton (SRQ)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
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Parallax here
This flight number is listed as serving the following routes:
  • Dallas Love Field (DAL) - Phoenix Sky Harbor (PHX)
  • Indianapolis (IND) - Fort Lauderdale (FLL)
  • Las Vegas Harry Reid (LAS) - Dallas Love Field (DAL)
  • Las Vegas Harry Reid (LAS) - Long Beach (LGB)
  • Las Vegas Harry Reid (LAS) - Tampa (TPA)
  • Ontario, Los Angeles (ONT) - Denver (DEN)
  • Phoenix Sky Harbor (PHX) - Denver (DEN)
  • Saint Louis (STL) - Sarasota/Bradenton (SRQ)
  • San Diego (SAN) - Sacramento (SMF)
All Southwest Airlines flights
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