Southwest Airlines flight WN 4531: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 05:05 Washington Dulles (IAD) 07:05 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 05:10 Washington Dulles (IAD) 07:10 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 05:10 Washington Dulles (IAD) 07:10 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 05:30 Washington Dulles (IAD) 07:30 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-01-11 through 2026-01-16
Mon,Sun 05:30 Washington Dulles (IAD) 07:30 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 05:30 Washington Dulles (IAD) 07:30 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-02-01 through 2026-02-06
Mon,Sun 05:30 Washington Dulles (IAD) 07:30 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 05:30 Washington Dulles (IAD) 07:30 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Effective 2026-02-17 through 2026-02-23
Mon 05:30 Washington Dulles (IAD) 07:30 Denver (DEN)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Operates only on 2026-03-02
Sat 07:30 Dallas Love Field (DAL) 1 10:40 Indianapolis (IND)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-06-06 through 2026-08-01
Mon,Thu,Fri 07:35 Dallas Love Field (DAL) 1 10:45 Indianapolis (IND)
WN 4531 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-06-04 through 2026-08-03
Tue,Wed 08:00 Dallas Love Field (DAL) 1 11:10 Indianapolis (IND)
WN 4531 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-06-09 through 2026-07-29
Sun 08:15 Dallas Love Field (DAL) 1 11:20 Indianapolis (IND)
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-06-07 through 2026-08-02
Sat 08:25 Sarasota/Bradenton (SRQ) 10:00 Saint Louis (STL) 2
WN 4531 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-03-07 through 2026-04-04
Sun 08:30 Baltimore (BWI) 10:30 Savannah (SAV)
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-08-09 through 2026-09-27
Tue 09:00 Dallas Love Field (DAL) 1 09:45 El Paso (ELP)
WN 4531 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-08-04 through 2026-09-29
Tue,Wed 10:25 Orlando (MCO) 11:35 Sarasota/Bradenton (SRQ)
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-03-10 through 2026-04-01
Sun 10:55 Sarasota/Bradenton (SRQ) 12:35 Saint Louis (STL) 2
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 11:35 Sarasota/Bradenton (SRQ) 13:20 Saint Louis (STL) 2
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-03-05 through 2026-04-06
Tue,Wed 12:10 Sarasota/Bradenton (SRQ) 13:50 Saint Louis (STL) 2
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-03-10 through 2026-04-01
Sun 12:30 Panama City (ECP) 14:40 Dallas Love Field (DAL) 1
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-04-12 through 2026-05-17
Sun 12:30 Panama City (ECP) 14:40 Dallas Love Field (DAL) 1
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Operates only on 2026-05-31
Tue,Wed 14:25 Saint Louis (STL) 2 15:35 Nashville (BNA)
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-03-10 through 2026-04-01
Wed 16:25 Harlingen (HRL) 17:35 Houston Hobby (HOU)
WN 4531 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-08-05 through 2026-09-30
Sat 16:25 Tampa (TPA) 17:55 Dallas Love Field (DAL) 1
WN 4531 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-08-08 through 2026-09-26
Mon-Fri 17:30 Washington Dulles (IAD) 19:35 Denver (DEN)
WN 4531 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 17:30 Washington Dulles (IAD) 19:35 Denver (DEN)
WN 4531 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-01-18 through 2026-01-23
Mon-Fri 17:30 Washington Dulles (IAD) 19:35 Denver (DEN)
WN 4531 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 17:30 Washington Dulles (IAD) 19:35 Denver (DEN)
WN 4531 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-02-08 through 2026-02-11
Tue,Wed 17:30 Washington Dulles (IAD) 19:35 Denver (DEN)
WN 4531 Non-stop Boeing 737-800 (73H) 4:05 Effective 2026-02-18 through 2026-03-04
Non-Direct Flights:
Tue,Wed 10:25 Orlando (MCO) 13:50 Saint Louis (STL) 2
WN 4531 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2026-03-10 through 2026-04-01
Tue,Wed 12:10 Sarasota/Bradenton (SRQ) 15:35 Nashville (BNA)
WN 4531 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Effective 2026-03-10 through 2026-04-01
Tue,Wed 10:25 Orlando (MCO) 15:35 Nashville (BNA)
WN 4531 2-stop Boeing 737-700 (Scimitar Winglets) 6:10 Effective 2026-03-10 through 2026-04-01
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4531: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4531
05:05
Washington Dulles (IAD)

07:05
Denver (DEN)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:10
Washington Dulles (IAD)

07:10
Denver (DEN)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:10
Washington Dulles (IAD)

07:10
Denver (DEN)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:30
Washington Dulles (IAD)

07:30
Denver (DEN)
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:30
Washington Dulles (IAD)

07:30
Denver (DEN)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:30
Washington Dulles (IAD)

07:30
Denver (DEN)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:30
Washington Dulles (IAD)

07:30
Denver (DEN)
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:30
Washington Dulles (IAD)

07:30
Denver (DEN)
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
05:30
Washington Dulles (IAD)

07:30
Denver (DEN)
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
07:30
Dallas Love Field (DAL) 1

10:40
Indianapolis (IND)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
07:35
Dallas Love Field (DAL) 1

10:45
Indianapolis (IND)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4531
08:00
Dallas Love Field (DAL) 1

11:10
Indianapolis (IND)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
08:15
Dallas Love Field (DAL) 1

11:20
Indianapolis (IND)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
08:25
Sarasota/Bradenton (SRQ)

10:00
Saint Louis (STL) 2
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
08:30
Baltimore (BWI)

10:30
Savannah (SAV)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
09:00
Dallas Love Field (DAL) 1

09:45
El Paso (ELP)
Effective 2026-08-04 through 2026-09-29
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
10:25
Orlando (MCO)

11:35
Sarasota/Bradenton (SRQ)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
10:55
Sarasota/Bradenton (SRQ)

12:35
Saint Louis (STL) 2
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
11:35
Sarasota/Bradenton (SRQ)

13:20
Saint Louis (STL) 2
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
12:10
Sarasota/Bradenton (SRQ)

13:50
Saint Louis (STL) 2
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
12:30
Panama City (ECP)

14:40
Dallas Love Field (DAL) 1
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
12:30
Panama City (ECP)

14:40
Dallas Love Field (DAL) 1
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
14:25
Saint Louis (STL) 2

15:35
Nashville (BNA)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
16:25
Harlingen (HRL)

17:35
Houston Hobby (HOU)
Effective 2026-08-05 through 2026-09-30
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4531
16:25
Tampa (TPA)

17:55
Dallas Love Field (DAL) 1
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
17:30
Washington Dulles (IAD)

19:35
Denver (DEN)
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
17:30
Washington Dulles (IAD)

19:35
Denver (DEN)
Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 4:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
17:30
Washington Dulles (IAD)

19:35
Denver (DEN)
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
17:30
Washington Dulles (IAD)

19:35
Denver (DEN)
Effective 2026-02-08 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4531
17:30
Washington Dulles (IAD)

19:35
Denver (DEN)
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:05, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4531
10:25
Orlando (MCO)

13:50
Saint Louis (STL) 2
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4531
12:10
Sarasota/Bradenton (SRQ)

15:35
Nashville (BNA)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4531
10:25
Orlando (MCO)

15:35
Nashville (BNA)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:10, 2-stop
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Savannah (SAV)
  • Dallas Love Field (DAL) - El Paso (ELP)
  • Dallas Love Field (DAL) - Indianapolis (IND)
  • Harlingen (HRL) - Houston Hobby (HOU)
  • Orlando (MCO) - Nashville (BNA)
  • Orlando (MCO) - Saint Louis (STL)
  • Orlando (MCO) - Sarasota/Bradenton (SRQ)
  • Panama City (ECP) - Dallas Love Field (DAL)
  • Saint Louis (STL) - Nashville (BNA)
  • Sarasota/Bradenton (SRQ) - Nashville (BNA)
  • Sarasota/Bradenton (SRQ) - Saint Louis (STL)
  • Tampa (TPA) - Dallas Love Field (DAL)
  • Washington Dulles (IAD) - Denver (DEN)
All Southwest Airlines flights
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