Southwest Airlines flight WN 4143: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 06:20 San Antonio (SAT) A 07:10 San Diego (SAN) 1
WN 4143 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 06:50 San Antonio (SAT) A 07:40 San Diego (SAN) 1
WN 4143 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-08-06 through 2026-09-28
Sat 07:15 San Antonio (SAT) A 08:05 San Diego (SAN) 1
WN 4143 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-08-08 through 2026-09-26
Sun 07:45 San Antonio (SAT) A 08:35 San Diego (SAN) 1
WN 4143 Non-stop Boeing 737-700 (Scimitar Winglets) 2:50 Effective 2026-08-09 through 2026-09-27
Sun 14:20 Austin (AUS) 15:05 Las Vegas Harry Reid (LAS) 1
WN 4143 Non-stop Boeing 737-800 (73H) 2:45 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 15:45 Austin (AUS) 16:35 Las Vegas Harry Reid (LAS) 1
WN 4143 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-06-04 through 2026-08-03
Sun 15:45 Las Vegas Harry Reid (LAS) 1 17:05 Los Angeles (LAX) 1
WN 4143 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-06-07 through 2026-08-02
Tue,Wed 16:30 Austin (AUS) 17:20 Las Vegas Harry Reid (LAS) 1
WN 4143 Non-stop Boeing 737-800 (73H) 2:50 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 17:35 Sacramento (SMF) B 19:10 San Diego (SAN) 1
WN 4143 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-04-09 through 2026-06-01
Sun 17:45 Los Angeles (LAX) 1 23:35 Chicago Midway (MDW)
WN 4143 Non-stop Boeing 737-800 (73H) 3:50 Effective 2026-06-07 through 2026-08-02
Non-Direct Flights:
Sun 14:20 Austin (AUS) 17:05 Los Angeles (LAX) 1
WN 4143 1-stop Boeing 737-800 (73H) 4:45 Effective 2026-06-07 through 2026-08-02
Sun 15:45 Las Vegas Harry Reid (LAS) 1 23:35 Chicago Midway (MDW)
WN 4143 1-stop Boeing 737-800 (73H) 5:50 Effective 2026-06-07 through 2026-08-02
Sun 14:20 Austin (AUS) 23:35 Chicago Midway (MDW)
WN 4143 2-stop Boeing 737-800 (73H) 9:15 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 4143: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4143
06:20
San Antonio (SAT) A

07:10
San Diego (SAN) 1
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4143
06:50
San Antonio (SAT) A

07:40
San Diego (SAN) 1
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4143
07:15
San Antonio (SAT) A

08:05
San Diego (SAN) 1
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4143
07:45
San Antonio (SAT) A

08:35
San Diego (SAN) 1
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4143
14:20
Austin (AUS)

15:05
Las Vegas Harry Reid (LAS) 1
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4143
15:45
Austin (AUS)

16:35
Las Vegas Harry Reid (LAS) 1
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4143
15:45
Las Vegas Harry Reid (LAS) 1

17:05
Los Angeles (LAX) 1
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4143
16:30
Austin (AUS)

17:20
Las Vegas Harry Reid (LAS) 1
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4143
17:35
Sacramento (SMF) B

19:10
San Diego (SAN) 1
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4143
17:45
Los Angeles (LAX) 1

23:35
Chicago Midway (MDW)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:50, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4143
14:20
Austin (AUS)

17:05
Los Angeles (LAX) 1
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:45, 1-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4143
15:45
Las Vegas Harry Reid (LAS) 1

23:35
Chicago Midway (MDW)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:50, 1-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN4143
14:20
Austin (AUS)

23:35
Chicago Midway (MDW)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 9:15, 2-stop
Boeing 737-800 (73H)
This flight number is listed as serving the following routes:
  • Austin (AUS) - Chicago Midway (MDW)
  • Austin (AUS) - Las Vegas Harry Reid (LAS)
  • Austin (AUS) - Los Angeles (LAX)
  • Las Vegas Harry Reid (LAS) - Chicago Midway (MDW)
  • Las Vegas Harry Reid (LAS) - Los Angeles (LAX)
  • Los Angeles (LAX) - Chicago Midway (MDW)
  • Sacramento (SMF) - San Diego (SAN)
  • San Antonio (SAT) - San Diego (SAN)
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