Southwest Airlines flight WN 4312: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 05:55 Saint Louis (STL) 2 08:25 Phoenix Sky Harbor (PHX) 4
WN 4312 Non-stop Boeing 737-700 (Scimitar Winglets) 3:30 Operates only on 2025-11-30
Sun 08:40 Las Vegas Harry Reid (LAS) 1 09:55 San Diego (SAN) 1
WN 4312 Non-stop Boeing 737-700 (73W) 1:15 Effective 2025-06-08 through 2025-08-03
Sat 09:00 San Diego (SAN) 1 12:25 Denver (DEN)
WN 4312 Non-stop Boeing 737-700 (73W) 2:25 Effective 2025-06-07 through 2025-08-02
Sun 10:35 San Diego (SAN) 1 14:00 Denver (DEN)
WN 4312 Non-stop Boeing 737-700 (73W) 2:25 Effective 2025-06-08 through 2025-08-03
Sat 14:20 Rochester (ROC) 17:10 Tampa (TPA)
WN 4312 Non-stop Boeing 737-700 (73W) 2:50 Effective 2025-08-09 through 2025-09-27
Sat 14:30 Ronald Reagan Washington (DCA) 16:55 Love Field, Dallas (DAL) 1
WN 4312 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2025-11-22 through 2025-11-29
Sat 14:30 Ronald Reagan Washington (DCA) 16:55 Love Field, Dallas (DAL) 1
WN 4312 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2025-12-20 through 2026-01-03
Sun 14:45 Denver (DEN) 17:15 Oklahoma City (OKC)
WN 4312 Non-stop Boeing 737-700 (73W) 1:30 Effective 2025-06-08 through 2025-08-03
Sat 17:55 Tampa (TPA) 19:15 Houston Hobby (HOU)
WN 4312 Non-stop Boeing 737-700 (73W) 2:20 Effective 2025-08-09 through 2025-09-27
Sun 18:05 Tampa (TPA) 19:25 Houston Hobby (HOU)
WN 4312 Non-stop Boeing 737-700 (73W) 2:20 Operates only on 2025-08-31
Mon,Thu,Fri 18:35 Tampa (TPA) 19:55 Houston Hobby (HOU)
WN 4312 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-08-07 through 2025-09-29
Sun 19:35 Tampa (TPA) 21:00 Houston Hobby (HOU)
WN 4312 Non-stop Boeing 737-800 (73H) 2:25 Effective 2025-08-10 through 2025-08-24
Sun 19:35 Tampa (TPA) 21:00 Houston Hobby (HOU)
WN 4312 Non-stop Boeing 737-800 (73H) 2:25 Effective 2025-09-07 through 2025-09-28
Mon-Wed 20:10 Ronald Reagan Washington (DCA) 22:50 Love Field, Dallas (DAL) 1
WN 4312 Non-stop Boeing 737-800 (73H) 3:40 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 20:10 Ronald Reagan Washington (DCA) 22:50 Love Field, Dallas (DAL) 1
WN 4312 Non-stop Boeing 737-800 (73H) 3:40 Effective 2025-12-19 through 2026-01-04
Non-Direct Flights:
Sun 08:40 Las Vegas Harry Reid (LAS) 1 14:00 Denver (DEN)
WN 4312 1-stop Boeing 737-700 (73W) 4:20 Effective 2025-06-08 through 2025-08-03
Sun 10:35 San Diego (SAN) 1 17:15 Oklahoma City (OKC)
WN 4312 1-stop Boeing 737-700 (73W) 4:40 Effective 2025-06-08 through 2025-08-03
Sat 14:20 Rochester (ROC) 19:15 Houston Hobby (HOU)
WN 4312 1-stop Boeing 737-700 (73W) 5:55 Effective 2025-08-09 through 2025-09-27
Sun 08:40 Las Vegas Harry Reid (LAS) 1 17:15 Oklahoma City (OKC)
WN 4312 2-stop Boeing 737-700 (73W) 6:35 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 4312: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4312
05:55
Saint Louis (STL) 2

08:25
Phoenix Sky Harbor (PHX) 4
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4312
08:40
Las Vegas Harry Reid (LAS) 1

09:55
San Diego (SAN) 1
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
09:00
San Diego (SAN) 1

12:25
Denver (DEN)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
10:35
San Diego (SAN) 1

14:00
Denver (DEN)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
14:20
Rochester (ROC)

17:10
Tampa (TPA)
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:50, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
14:30
Ronald Reagan Washington (DCA)

16:55
Love Field, Dallas (DAL) 1
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4312
14:30
Ronald Reagan Washington (DCA)

16:55
Love Field, Dallas (DAL) 1
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4312
14:45
Denver (DEN)

17:15
Oklahoma City (OKC)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
17:55
Tampa (TPA)

19:15
Houston Hobby (HOU)
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
18:05
Tampa (TPA)

19:25
Houston Hobby (HOU)
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
18:35
Tampa (TPA)

19:55
Houston Hobby (HOU)
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4312
19:35
Tampa (TPA)

21:00
Houston Hobby (HOU)
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4312
19:35
Tampa (TPA)

21:00
Houston Hobby (HOU)
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4312
20:10
Ronald Reagan Washington (DCA)

22:50
Love Field, Dallas (DAL) 1
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4312
20:10
Ronald Reagan Washington (DCA)

22:50
Love Field, Dallas (DAL) 1
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4312
08:40
Las Vegas Harry Reid (LAS) 1

14:00
Denver (DEN)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:20, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
10:35
San Diego (SAN) 1

17:15
Oklahoma City (OKC)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:40, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
14:20
Rochester (ROC)

19:15
Houston Hobby (HOU)
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:55, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN4312
08:40
Las Vegas Harry Reid (LAS) 1

17:15
Oklahoma City (OKC)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 6:35, 2-stop
Boeing 737-700 (73W)
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This flight number is listed as serving the following routes:
  • Denver (DEN) - Oklahoma City (OKC)
  • Las Vegas Harry Reid (LAS) - Denver (DEN)
  • Las Vegas Harry Reid (LAS) - Oklahoma City (OKC)
  • Las Vegas Harry Reid (LAS) - San Diego (SAN)
  • Rochester (ROC) - Houston Hobby (HOU)
  • Rochester (ROC) - Tampa (TPA)
  • Ronald Reagan Washington (DCA) - Love Field, Dallas (DAL)
  • Saint Louis (STL) - Phoenix Sky Harbor (PHX)
  • San Diego (SAN) - Denver (DEN)
  • San Diego (SAN) - Oklahoma City (OKC)
  • Tampa (TPA) - Houston Hobby (HOU)
All Southwest Airlines flights
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