Southwest Airlines flight WN 3543: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 08:00 Raleigh/Durham (RDU) 1 09:00 Chicago Midway (MDW)
WN 3543 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-04-09 through 2026-06-01
Sat,Sun 08:00 Raleigh/Durham (RDU) 1 09:00 Chicago Midway (MDW)
WN 3543 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-04-11 through 2026-05-23
Sat,Sun 08:00 Raleigh/Durham (RDU) 1 09:00 Chicago Midway (MDW)
WN 3543 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-05-30 through 2026-05-31
Sat 08:30 Nashville (BNA) 11:20 Baltimore (BWI)
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 09:45 Seattle-Tacoma (SEA) 11:40 Sacramento (SMF) B
WN 3543 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-08-06 through 2026-09-28
Sat 11:45 Kansas City (MCI) 15:30 Fort Myers (RSW)
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2026-01-03
Wed,Thu 12:05 Kansas City (MCI) 15:50 Fort Myers (RSW)
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2026-01-01
Sat 13:50 Seattle-Tacoma (SEA) 15:55 Sacramento (SMF) B
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-08-08 through 2026-09-26
Mon,Tue,Fri,Sun 14:50 Kansas City (MCI) 18:35 Fort Myers (RSW)
WN 3543 Non-stop Boeing 737-800 (73H) 2:45 Valid until 2026-01-04
Sun 15:15 San Jose (SJC) B 16:45 Las Vegas Harry Reid (LAS) 1
WN 3543 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-06-07 through 2026-08-02
Mon 15:20 Kansas City (MCI) 19:05 Fort Myers (RSW)
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Operates only on 2026-01-05
Tue,Wed 15:35 Seattle-Tacoma (SEA) 17:30 Sacramento (SMF) B
WN 3543 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-08-04 through 2026-09-30
Tue,Wed 18:30 Boston Logan (BOS) B 20:15 Baltimore (BWI)
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-06-09 through 2026-07-29
Tue,Wed 18:40 Raleigh/Durham (RDU) 1 19:40 Chicago Midway (MDW)
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-04-07 through 2026-06-03
Sun 19:35 Denver (DEN) 20:35 Las Vegas Harry Reid (LAS) 1
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-03-08 through 2026-04-05
Tue,Wed 19:35 Denver (DEN) 20:35 Las Vegas Harry Reid (LAS) 1
WN 3543 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-03-10 through 2026-04-01
Sat 19:35 Baltimore (BWI) 21:45 Jacksonville (JAX)
WN 3543 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-06-06 through 2026-08-01
Sat 19:45 Denver (DEN) 20:45 Las Vegas Harry Reid (LAS) 1
WN 3543 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-03-07 through 2026-04-04
Mon,Thu,Fri 20:10 Denver (DEN) 21:10 Las Vegas Harry Reid (LAS) 1
WN 3543 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-03-05 through 2026-04-06
Thu,Fri 21:50 Las Vegas Harry Reid (LAS) 1 00:10 Tucson (TUS)
WN 3543 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-03-05 through 2026-03-06
The flight arrives 1 day after departure.
Mon,Thu,Fri 21:50 Las Vegas Harry Reid (LAS) 1 23:10 Tucson (TUS)
WN 3543 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-03-09 through 2026-04-06
Sun 21:55 Saint Louis (STL) 2 00:05 Portland (PDX)
WN 3543 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2026-08-09 through 2026-09-27
The flight arrives 1 day after departure.
Non-Direct Flights:
Thu,Fri 20:10 Denver (DEN) 00:10 Tucson (TUS)
WN 3543 1-stop Boeing 737-800 (73H) 4:00 Effective 2026-03-05 through 2026-03-06
The flight arrives 1 day after departure.
Mon,Thu,Fri 20:10 Denver (DEN) 23:10 Tucson (TUS)
WN 3543 1-stop Boeing 737-800 (73H) 4:00 Effective 2026-03-09 through 2026-04-06
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3543: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3543
08:00
Raleigh/Durham (RDU) 1

09:00
Chicago Midway (MDW)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3543
08:00
Raleigh/Durham (RDU) 1

09:00
Chicago Midway (MDW)
Effective 2026-04-11 through 2026-05-23
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3543
08:00
Raleigh/Durham (RDU) 1

09:00
Chicago Midway (MDW)
Effective 2026-05-30 through 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3543
08:30
Nashville (BNA)

11:20
Baltimore (BWI)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
09:45
Seattle-Tacoma (SEA)

11:40
Sacramento (SMF) B
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3543
11:45
Kansas City (MCI)

15:30
Fort Myers (RSW)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
12:05
Kansas City (MCI)

15:50
Fort Myers (RSW)
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
13:50
Seattle-Tacoma (SEA)

15:55
Sacramento (SMF) B
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
14:50
Kansas City (MCI)

18:35
Fort Myers (RSW)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3543
15:15
San Jose (SJC) B

16:45
Las Vegas Harry Reid (LAS) 1
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3543
15:20
Kansas City (MCI)

19:05
Fort Myers (RSW)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
15:35
Seattle-Tacoma (SEA)

17:30
Sacramento (SMF) B
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3543
18:30
Boston Logan (BOS) B

20:15
Baltimore (BWI)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
18:40
Raleigh/Durham (RDU) 1

19:40
Chicago Midway (MDW)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
19:35
Denver (DEN)

20:35
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3543
19:35
Denver (DEN)

20:35
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3543
19:35
Baltimore (BWI)

21:45
Jacksonville (JAX)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3543
19:45
Denver (DEN)

20:45
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3543
20:10
Denver (DEN)

21:10
Las Vegas Harry Reid (LAS) 1
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3543
21:50
Las Vegas Harry Reid (LAS) 1

00:10(+1)
Tucson (TUS)
Effective 2026-03-05 through 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3543
21:50
Las Vegas Harry Reid (LAS) 1

23:10
Tucson (TUS)
Effective 2026-03-09 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3543
21:55
Saint Louis (STL) 2

00:05(+1)
Portland (PDX)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN3543
20:10
Denver (DEN)

00:10(+1)
Tucson (TUS)
Effective 2026-03-05 through 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:00, 1-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN3543
20:10
Denver (DEN)

23:10
Tucson (TUS)
Effective 2026-03-09 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:00, 1-stop
Boeing 737-800 (73H)
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Jacksonville (JAX)
  • Boston Logan (BOS) - Baltimore (BWI)
  • Denver (DEN) - Las Vegas Harry Reid (LAS)
  • Denver (DEN) - Tucson (TUS)
  • Kansas City (MCI) - Fort Myers (RSW)
  • Las Vegas Harry Reid (LAS) - Tucson (TUS)
  • Nashville (BNA) - Baltimore (BWI)
  • Raleigh/Durham (RDU) - Chicago Midway (MDW)
  • Saint Louis (STL) - Portland (PDX)
  • San Jose (SJC) - Las Vegas Harry Reid (LAS)
  • Seattle-Tacoma (SEA) - Sacramento (SMF)
All Southwest Airlines flights
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