Southwest Airlines flight WN 4550: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 08:25 Raleigh/Durham (RDU) 1 09:35 Baltimore (BWI)
WN 4550 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 08:40 Raleigh/Durham (RDU) 1 09:50 Baltimore (BWI)
WN 4550 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-04 through 2026-08-03
Mon 12:15 Fort Myers (RSW) 13:35 Nashville (BNA)
WN 4550 Non-stop Boeing 737-800 (73H) 2:20 Operates only on 2026-01-05
Mon,Thu,Fri 13:45 Saint Louis (STL) 2 17:25 Miami (MIA)
WN 4550 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-03-05 through 2026-04-06
Sat 15:00 Saint Louis (STL) 2 18:40 Miami (MIA)
WN 4550 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-03-07 through 2026-04-04
Tue,Wed 16:25 Saint Louis (STL) 2 20:05 Miami (MIA)
WN 4550 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-03-10 through 2026-04-01
Sun 17:25 Las Vegas Harry Reid (LAS) 1 19:05 Sacramento (SMF) B
WN 4550 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-04-12 through 2026-05-17
Sun 17:25 Las Vegas Harry Reid (LAS) 1 19:05 Sacramento (SMF) B
WN 4550 Non-stop Boeing 737-800 (73H) 1:40 Operates only on 2026-05-31
Tue,Wed 18:20 Salt Lake City (SLC) 19:00 Phoenix Sky Harbor (PHX) 4
WN 4550 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 19:15 Salt Lake City (SLC) 20:00 Phoenix Sky Harbor (PHX) 4
WN 4550 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-08-06 through 2026-09-28
Sat 19:55 Las Vegas Harry Reid (LAS) 1 21:30 Sacramento (SMF) B
WN 4550 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2026-04-11 through 2026-05-30
Sun 20:55 Saint Louis (STL) 2 00:35 Miami (MIA)
WN 4550 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-03-08 through 2026-04-05
The flight arrives 1 day after departure.
Sun 21:20 Salt Lake City (SLC) 22:05 Phoenix Sky Harbor (PHX) 4
WN 4550 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-08-09 through 2026-09-27
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4550: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4550
08:25
Raleigh/Durham (RDU) 1

09:35
Baltimore (BWI)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4550
08:40
Raleigh/Durham (RDU) 1

09:50
Baltimore (BWI)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4550
12:15
Fort Myers (RSW)

13:35
Nashville (BNA)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4550
13:45
Saint Louis (STL) 2

17:25
Miami (MIA)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4550
15:00
Saint Louis (STL) 2

18:40
Miami (MIA)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4550
16:25
Saint Louis (STL) 2

20:05
Miami (MIA)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4550
17:25
Las Vegas Harry Reid (LAS) 1

19:05
Sacramento (SMF) B
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4550
17:25
Las Vegas Harry Reid (LAS) 1

19:05
Sacramento (SMF) B
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4550
18:20
Salt Lake City (SLC)

19:00
Phoenix Sky Harbor (PHX) 4
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4550
19:15
Salt Lake City (SLC)

20:00
Phoenix Sky Harbor (PHX) 4
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4550
19:55
Las Vegas Harry Reid (LAS) 1

21:30
Sacramento (SMF) B
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4550
20:55
Saint Louis (STL) 2

00:35(+1)
Miami (MIA)
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)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN4550
21:20
Salt Lake City (SLC)

22:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Fort Myers (RSW) - Nashville (BNA)
  • Las Vegas Harry Reid (LAS) - Sacramento (SMF)
  • Raleigh/Durham (RDU) - Baltimore (BWI)
  • Saint Louis (STL) - Miami (MIA)
  • Salt Lake City (SLC) - Phoenix Sky Harbor (PHX)
All Southwest Airlines flights
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