Southwest Airlines flight WN 4542: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 05:10 Saint Louis (STL) 2 07:25 Houston Hobby (HOU)
WN 4542 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-03-08 through 2026-04-05
Tue,Wed 05:35 Saint Louis (STL) 2 07:50 Houston Hobby (HOU)
WN 4542 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-03-10 through 2026-04-01
Sun 05:35 Colorado Springs (COS) 06:40 Las Vegas Harry Reid (LAS) 1
WN 4542 Non-stop Boeing 737-800 (73H) 2:05 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 06:30 Saint Louis (STL) 2 08:45 Houston Hobby (HOU)
WN 4542 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-03-05 through 2026-04-06
Sat 07:15 Saint Louis (STL) 2 09:30 Houston Hobby (HOU)
WN 4542 Non-stop Boeing 737-800 (73H) 2:15 Effective 2026-03-07 through 2026-04-04
Mon,Thu,Fri 07:30 Las Vegas Harry Reid (LAS) 1 12:10 Dallas Love Field (DAL) 1
WN 4542 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-04-09 through 2026-06-01
Mon,Thu,Fri 08:15 Long Beach (LGB) 14:05 Chicago Midway (MDW)
WN 4542 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-06-04 through 2026-08-03
Tue 09:10 Dallas Love Field (DAL) 1 10:50 San Francisco (SFO) 2
WN 4542 Non-stop Boeing 737-700 (Scimitar Winglets) 3:40 Effective 2026-08-04 through 2026-09-29
Tue,Wed 10:55 Las Vegas Harry Reid (LAS) 1 15:35 Dallas Love Field (DAL) 1
WN 4542 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-04-07 through 2026-06-03
Sat 11:10 Las Vegas Harry Reid (LAS) 1 15:50 Dallas Love Field (DAL) 1
WN 4542 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-04-11 through 2026-05-30
Sun 11:15 Las Vegas Harry Reid (LAS) 1 15:55 Dallas Love Field (DAL) 1
WN 4542 Non-stop Boeing 737-800 (73H) 2:40 Operates only on 2026-05-24
Sun 11:25 Las Vegas Harry Reid (LAS) 1 16:05 Dallas Love Field (DAL) 1
WN 4542 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-04-12 through 2026-05-17
Sun 11:25 Las Vegas Harry Reid (LAS) 1 16:05 Dallas Love Field (DAL) 1
WN 4542 Non-stop Boeing 737-800 (73H) 2:40 Operates only on 2026-05-31
Wed 13:30 Phoenix Sky Harbor (PHX) 4 14:40 San Diego (SAN) 1
WN 4542 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-08-05 through 2026-09-30
Sat 15:00 Destin/Fort Walton Beach (VPS) 16:30 Nashville (BNA)
WN 4542 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-08-08 through 2026-09-26
Sat 17:00 Austin (AUS) 20:45 Raleigh/Durham (RDU) 1
WN 4542 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Operates only on 2026-01-03
Mon 19:45 Austin (AUS) 23:25 Raleigh/Durham (RDU) 1
WN 4542 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-01-05
Mon,Tue,Fri,Sun 20:15 Austin (AUS) 23:55 Raleigh/Durham (RDU) 1
WN 4542 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Valid until 2026-01-04
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4542: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4542
05:10
Saint Louis (STL) 2

07:25
Houston Hobby (HOU)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4542
05:35
Saint Louis (STL) 2

07:50
Houston Hobby (HOU)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
05:35
Colorado Springs (COS)

06:40
Las Vegas Harry Reid (LAS) 1
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
06:30
Saint Louis (STL) 2

08:45
Houston Hobby (HOU)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4542
07:15
Saint Louis (STL) 2

09:30
Houston Hobby (HOU)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:15, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
07:30
Las Vegas Harry Reid (LAS) 1

12:10
Dallas Love Field (DAL) 1
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
08:15
Long Beach (LGB)

14:05
Chicago Midway (MDW)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4542
09:10
Dallas Love Field (DAL) 1

10:50
San Francisco (SFO) 2
Effective 2026-08-04 through 2026-09-29
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4542
10:55
Las Vegas Harry Reid (LAS) 1

15:35
Dallas Love Field (DAL) 1
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
11:10
Las Vegas Harry Reid (LAS) 1

15:50
Dallas Love Field (DAL) 1
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4542
11:15
Las Vegas Harry Reid (LAS) 1

15:55
Dallas Love Field (DAL) 1
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
11:25
Las Vegas Harry Reid (LAS) 1

16:05
Dallas Love Field (DAL) 1
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
11:25
Las Vegas Harry Reid (LAS) 1

16:05
Dallas Love Field (DAL) 1
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4542
13:30
Phoenix Sky Harbor (PHX) 4

14:40
San Diego (SAN) 1
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 WN4542
15:00
Destin/Fort Walton Beach (VPS)

16:30
Nashville (BNA)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4542
17:00
Austin (AUS)

20:45
Raleigh/Durham (RDU) 1
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4542
19:45
Austin (AUS)

23:25
Raleigh/Durham (RDU) 1
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4542
20:15
Austin (AUS)

23:55
Raleigh/Durham (RDU) 1
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Austin (AUS) - Raleigh/Durham (RDU)
  • Colorado Springs (COS) - Las Vegas Harry Reid (LAS)
  • Dallas Love Field (DAL) - San Francisco (SFO)
  • Destin/Fort Walton Beach (VPS) - Nashville (BNA)
  • Las Vegas Harry Reid (LAS) - Dallas Love Field (DAL)
  • Long Beach (LGB) - Chicago Midway (MDW)
  • Phoenix Sky Harbor (PHX) - San Diego (SAN)
  • Saint Louis (STL) - Houston Hobby (HOU)
All Southwest Airlines flights
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