Southwest Airlines flight WN 3666: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 08:10 Austin (AUS) 10:10 Nashville (BNA)
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-03-07 through 2026-04-04
Tue,Wed 08:30 Austin (AUS) 10:30 Nashville (BNA)
WN 3666 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 08:35 Austin (AUS) 10:35 Nashville (BNA)
WN 3666 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-03-05 through 2026-04-06
Sun 09:05 San Jose (SJC) B 12:30 Denver (DEN)
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 10:25 San Jose (SJC) B 13:50 Denver (DEN)
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-06-04 through 2026-08-03
Mon,Thu,Fri 11:10 Nashville (BNA) 14:05 Orlando (MCO)
WN 3666 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-03-05 through 2026-04-06
Sun 11:35 Nashville (BNA) 14:30 Orlando (MCO)
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2026-03-08 through 2026-04-05
Sat 12:15 Albany (ALB) 13:40 Nashville (BNA)
WN 3666 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-04-11 through 2026-05-30
Tue,Wed 12:35 Chicago Midway (MDW) 14:45 Cleveland (CLE)
WN 3666 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-08-04 through 2026-09-30
Sun 13:05 Chicago Midway (MDW) 15:15 Cleveland (CLE)
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-08-09 through 2026-09-27
Sat 13:55 Nashville (BNA) 17:00 Sacramento (SMF) B
WN 3666 Non-stop Boeing 737-800 (73H) 5:05 Effective 2026-01-10 through 2026-02-07
Mon 16:25 Orlando (MCO) 18:05 Saint Louis (STL) 2
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-01-05
Mon,Thu,Fri 16:25 Chicago Midway (MDW) 18:40 Cleveland (CLE)
WN 3666 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-08-06 through 2026-09-28
Sun 16:30 Albany (ALB) 17:55 Nashville (BNA)
WN 3666 Non-stop Boeing 737-800 (73H) 2:25 Effective 2026-04-12 through 2026-05-17
Sun 16:30 Albany (ALB) 17:55 Nashville (BNA)
WN 3666 Non-stop Boeing 737-800 (73H) 2:25 Operates only on 2026-05-31
Wed,Thu 17:30 Orlando (MCO) 19:15 Saint Louis (STL) 2
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2026-01-01
Sun 17:55 Albany (ALB) 19:20 Nashville (BNA)
WN 3666 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Operates only on 2026-05-24
Non-Direct Flights:
Mon,Thu,Fri 08:35 Austin (AUS) 14:05 Orlando (MCO)
WN 3666 1-stop Boeing 737-700 (Scimitar Winglets) 4:30 Effective 2026-03-05 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 3666: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3666
08:10
Austin (AUS)

10:10
Nashville (BNA)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3666
08:30
Austin (AUS)

10:30
Nashville (BNA)
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 WN3666
08:35
Austin (AUS)

10:35
Nashville (BNA)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3666
09:05
San Jose (SJC) B

12:30
Denver (DEN)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3666
10:25
San Jose (SJC) B

13:50
Denver (DEN)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3666
11:10
Nashville (BNA)

14:05
Orlando (MCO)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3666
11:35
Nashville (BNA)

14:30
Orlando (MCO)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3666
12:15
Albany (ALB)

13:40
Nashville (BNA)
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3666
12:35
Chicago Midway (MDW)

14:45
Cleveland (CLE)
Effective 2026-08-04 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 WN3666
13:05
Chicago Midway (MDW)

15:15
Cleveland (CLE)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3666
13:55
Nashville (BNA)

17:00
Sacramento (SMF) B
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3666
16:25
Orlando (MCO)

18:05
Saint Louis (STL) 2
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 WN3666
16:25
Chicago Midway (MDW)

18:40
Cleveland (CLE)
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3666
16:30
Albany (ALB)

17:55
Nashville (BNA)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3666
16:30
Albany (ALB)

17:55
Nashville (BNA)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3666
17:30
Orlando (MCO)

19:15
Saint Louis (STL) 2
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 WN3666
17:55
Albany (ALB)

19:20
Nashville (BNA)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN3666
08:35
Austin (AUS)

14:05
Orlando (MCO)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 4:30, 1-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Albany (ALB) - Nashville (BNA)
  • Austin (AUS) - Nashville (BNA)
  • Austin (AUS) - Orlando (MCO)
  • Chicago Midway (MDW) - Cleveland (CLE)
  • Nashville (BNA) - Orlando (MCO)
  • Nashville (BNA) - Sacramento (SMF)
  • Orlando (MCO) - Saint Louis (STL)
  • San Jose (SJC) - Denver (DEN)
All Southwest Airlines flights
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