Southwest Airlines flight WN 4431: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 07:30 Dallas Love Field (DAL) 1 10:55 Fort Myers (RSW)
WN 4431 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-07 through 2026-04-04
Mon 08:45 Saint Louis (STL) 2 10:25 Las Vegas Harry Reid (LAS) 1
WN 4431 Non-stop Boeing 737-800 (73H) 3:40 Operates only on 2026-01-05
Thu 13:05 Saint Louis (STL) 2 14:40 Las Vegas Harry Reid (LAS) 1
WN 4431 Non-stop Boeing 737-800 (73H) 3:35 Valid until 2026-01-01
Sun 14:50 Dallas Love Field (DAL) 1 18:15 Fort Myers (RSW)
WN 4431 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-08 through 2026-04-05
Sun 18:15 Houston Hobby (HOU) 21:50 Raleigh/Durham (RDU) 1
WN 4431 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Operates only on 2026-05-24
Tue,Wed,Sat 19:40 Nashville (BNA) 22:15 Raleigh/Durham (RDU) 1
WN 4431 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-06-06 through 2026-08-01
Sat 19:45 Baltimore (BWI) 21:40 Savannah (SAV)
WN 4431 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-02-14 through 2026-02-28
Tue 19:45 Baltimore (BWI) 21:25 Boston Logan (BOS) B
WN 4431 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-08-04 through 2026-09-29
Mon,Thu,Fri 20:10 Baltimore (BWI) 22:05 Savannah (SAV)
WN 4431 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 20:10 Baltimore (BWI) 22:05 Savannah (SAV)
WN 4431 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-02-20 through 2026-03-01
Sat 20:20 Chicago Midway (MDW) 23:20 New York LaGuardia (LGA) B
WN 4431 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Valid until 2026-01-03
Mon,Tue,Fri,Sun 20:25 Chicago Midway (MDW) 23:25 New York LaGuardia (LGA) B
WN 4431 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Valid until 2026-01-04
Mon,Thu,Fri 20:35 Nashville (BNA) 23:10 Raleigh/Durham (RDU) 1
WN 4431 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-06-04 through 2026-08-03
Sun 20:40 Houston Hobby (HOU) 00:15 Raleigh/Durham (RDU) 1
WN 4431 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-04-12 through 2026-05-17
The flight arrives 1 day after departure.
Sun 20:40 Houston Hobby (HOU) 00:15 Raleigh/Durham (RDU) 1
WN 4431 Non-stop Boeing 737-800 (73H) 2:35 Operates only on 2026-05-31
The flight arrives 1 day after departure.
Sun 20:45 Nashville (BNA) 23:20 Raleigh/Durham (RDU) 1
WN 4431 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-06-07 through 2026-08-02
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4431: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4431
07:30
Dallas Love Field (DAL) 1

10:55
Fort Myers (RSW)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4431
08:45
Saint Louis (STL) 2

10:25
Las Vegas Harry Reid (LAS) 1
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4431
13:05
Saint Louis (STL) 2

14:40
Las Vegas Harry Reid (LAS) 1
Valid until 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4431
14:50
Dallas Love Field (DAL) 1

18:15
Fort Myers (RSW)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4431
18:15
Houston Hobby (HOU)

21:50
Raleigh/Durham (RDU) 1
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4431
19:40
Nashville (BNA)

22:15
Raleigh/Durham (RDU) 1
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4431
19:45
Baltimore (BWI)

21:40
Savannah (SAV)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4431
19:45
Baltimore (BWI)

21:25
Boston Logan (BOS) B
Effective 2026-08-04 through 2026-09-29
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4431
20:10
Baltimore (BWI)

22:05
Savannah (SAV)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4431
20:10
Baltimore (BWI)

22:05
Savannah (SAV)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4431
20:20
Chicago Midway (MDW)

23:20
New York LaGuardia (LGA) B
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4431
20:25
Chicago Midway (MDW)

23:25
New York LaGuardia (LGA) B
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4431
20:35
Nashville (BNA)

23:10
Raleigh/Durham (RDU) 1
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4431
20:40
Houston Hobby (HOU)

00:15(+1)
Raleigh/Durham (RDU) 1
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN4431
20:40
Houston Hobby (HOU)

00:15(+1)
Raleigh/Durham (RDU) 1
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN4431
20:45
Nashville (BNA)

23:20
Raleigh/Durham (RDU) 1
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Boston Logan (BOS)
  • Baltimore (BWI) - Savannah (SAV)
  • Chicago Midway (MDW) - New York LaGuardia (LGA)
  • Dallas Love Field (DAL) - Fort Myers (RSW)
  • Houston Hobby (HOU) - Raleigh/Durham (RDU)
  • Nashville (BNA) - Raleigh/Durham (RDU)
  • Saint Louis (STL) - Las Vegas Harry Reid (LAS)
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