Southwest Airlines flight WN 661: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Thu 05:00 San Antonio (SAT) A 07:05 Saint Louis (STL) 2
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Operates only on 2025-11-27
Sat 06:30 San Jose (SJC) B 10:05 Denver (DEN)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2025-11-22 through 2025-11-29
Sat 06:30 San Jose (SJC) B 10:05 Denver (DEN)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2025-12-20 through 2026-01-03
Mon-Wed 06:40 San Jose (SJC) B 10:10 Denver (DEN)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 06:40 San Jose (SJC) B 10:10 Denver (DEN)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2025-12-19 through 2026-01-04
Tue,Wed 08:05 Phoenix Sky Harbor (PHX) 4 10:40 Portland (PDX)
WN 661 Non-stop Boeing 737-800 (73H) 2:35 Effective 2025-06-10 through 2025-07-30
Fri 10:35 San Diego (SAN) 1 12:00 Phoenix Sky Harbor (PHX) 4
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2025-07-04
Sat 10:45 Denver (DEN) 13:15 Tulsa (TUL)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-11-22 through 2025-11-29
Sat 10:45 Denver (DEN) 13:15 Tulsa (TUL)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-12-20 through 2026-01-03
Sun 12:05 Denver (DEN) 15:35 Chicago O'Hare (ORD) 5
WN 661 Non-stop Boeing 737-800 (73H) 2:30 Operates only on 2025-08-31
Mon,Thu,Fri 12:50 Phoenix Sky Harbor (PHX) 4 15:25 Portland (PDX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 12:50 Phoenix Sky Harbor (PHX) 4 15:25 Portland (PDX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2025-07-07 through 2025-08-04
Fri 13:00 Phoenix Sky Harbor (PHX) 4 15:35 Portland (PDX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Operates only on 2025-07-04
Daily 13:15 Denver (DEN) 16:45 Chicago O'Hare (ORD) 5
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2025-08-05 through 2025-08-30
Daily 13:15 Denver (DEN) 16:45 Chicago O'Hare (ORD) 5
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Effective 2025-09-01 through 2025-10-01
Sat 15:30 Orlando (MCO) 17:05 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-11-08 through 2025-11-15
Sat 15:30 Orlando (MCO) 17:05 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-12-06 through 2025-12-13
Sun 15:50 Ontario, Los Angeles (ONT) 4 17:00 Las Vegas Harry Reid (LAS) 1
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-10-05 through 2025-10-26
Sun 16:15 Phoenix Sky Harbor (PHX) 4 18:50 Portland (PDX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2025-06-08 through 2025-08-03
Mon,Thu,Fri,Sun 16:20 Orlando (MCO) 17:55 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 16:20 Orlando (MCO) 17:55 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-11-21 through 2025-11-28
Fri,Sun 16:20 Orlando (MCO) 17:55 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2025-12-07 through 2025-12-14
Thu 16:20 Orlando (MCO) 17:55 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Operates only on 2025-12-18
Mon 16:20 Orlando (MCO) 17:55 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Operates only on 2026-01-05
Sat 16:45 Love Field, Dallas (DAL) 1 17:45 Las Vegas Harry Reid (LAS) 1
WN 661 Non-stop Boeing 737-800 (73H) 3:00 Effective 2025-10-04 through 2025-11-01
Sat 16:50 Phoenix Sky Harbor (PHX) 4 19:25 Portland (PDX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2025-06-07 through 2025-08-02
Tue,Wed 16:55 Denver (DEN) 20:05 Austin (AUS)
WN 661 Non-stop Boeing 737-800 (73H) 2:10 Effective 2025-10-07 through 2025-10-29
Sun 17:10 Denver (DEN) 22:50 Orlando (MCO)
WN 661 Non-stop Boeing 737-700 (73W) 3:40 Operates only on 2025-05-25
Tue,Wed 17:20 Denver (DEN) 23:00 Orlando (MCO)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 3:40 Valid until 2025-06-04
Mon,Thu,Fri 17:20 Denver (DEN) 23:00 Orlando (MCO)
WN 661 Non-stop Boeing 737-700 (73W) 3:40 Valid until 2025-06-02
Sun 17:40 Denver (DEN) 23:25 Orlando (MCO)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Valid until 2025-05-18
Sun 17:40 Denver (DEN) 23:25 Orlando (MCO)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Operates only on 2025-06-01
Sat 17:40 Atlanta (ATL) N 19:30 Baltimore (BWI)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2025-11-08 through 2025-11-15
Sat 17:40 Atlanta (ATL) N 19:30 Baltimore (BWI)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2025-12-06 through 2025-12-13
Sun 17:45 Las Vegas Harry Reid (LAS) 1 19:25 Sacramento (SMF) B
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2025-10-05 through 2025-10-26
Sat 17:50 Denver (DEN) 23:35 Orlando (MCO)
WN 661 Non-stop Boeing 737-700 (73W) 3:45 Valid until 2025-05-31
Sat 18:25 Las Vegas Harry Reid (LAS) 1 20:05 Sacramento (SMF) B
WN 661 Non-stop Boeing 737-800 (73H) 1:40 Effective 2025-10-04 through 2025-11-01
Mon,Thu,Fri 18:50 Denver (DEN) 21:55 Austin (AUS)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2025-10-02 through 2025-10-31
Sun 19:15 Orlando (MCO) 20:50 Atlanta (ATL) N
WN 661 Non-stop Boeing 737-800 (73H) 1:35 Operates only on 2025-11-30
Non-Direct Flights:
Sat 06:30 San Jose (SJC) B 13:15 Tulsa (TUL)
WN 661 1-stop Boeing 737-700 (Scimitar Winglets) 4:45 Effective 2025-11-22 through 2025-11-29
Sat 06:30 San Jose (SJC) B 13:15 Tulsa (TUL)
WN 661 1-stop Boeing 737-700 (Scimitar Winglets) 4:45 Effective 2025-12-20 through 2026-01-03
Fri 10:35 San Diego (SAN) 1 15:35 Portland (PDX)
WN 661 1-stop Boeing 737 MAX 8 (7M8) 5:00 Operates only on 2025-07-04
Sat 15:30 Orlando (MCO) 19:30 Baltimore (BWI)
WN 661 1-stop Boeing 737-700 (Scimitar Winglets) 4:00 Effective 2025-11-08 through 2025-11-15
Sat 15:30 Orlando (MCO) 19:30 Baltimore (BWI)
WN 661 1-stop Boeing 737-700 (Scimitar Winglets) 4:00 Effective 2025-12-06 through 2025-12-13
Sun 15:50 Ontario, Los Angeles (ONT) 4 19:25 Sacramento (SMF) B
WN 661 1-stop Boeing 737-700 (Scimitar Winglets) 3:35 Effective 2025-10-05 through 2025-10-26
Sat 16:45 Love Field, Dallas (DAL) 1 20:05 Sacramento (SMF) B
WN 661 1-stop Boeing 737-800 (73H) 5:20 Effective 2025-10-04 through 2025-11-01
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This flight number is listed as serving the following routes:
Southwest Airlines flight WN 661: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Southwest Airlines WN661
Operates only on 2025-11-27
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN661
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN661
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-08-05 through 2025-08-30
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-09-01 through 2025-10-01
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN661
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN661
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN661
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:40, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN661
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:45, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN661
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:40, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN661
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN661
06:30

13:15
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:45, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
06:30

13:15
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:45, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:00, 1-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN661
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN661
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:20, 1-stop
Boeing 737-800 (73H)
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Parallax here
This flight number is listed as serving the following routes:
  • Atlanta (ATL) - Baltimore (BWI)
  • Denver (DEN) - Austin (AUS)
  • Denver (DEN) - Chicago O'Hare (ORD)
  • Denver (DEN) - Orlando (MCO)
  • Denver (DEN) - Tulsa (TUL)
  • Las Vegas Harry Reid (LAS) - Sacramento (SMF)
  • Love Field, Dallas (DAL) - Las Vegas Harry Reid (LAS)
  • Love Field, Dallas (DAL) - Sacramento (SMF)
  • Ontario, Los Angeles (ONT) - Las Vegas Harry Reid (LAS)
  • Ontario, Los Angeles (ONT) - Sacramento (SMF)
  • Orlando (MCO) - Atlanta (ATL)
  • Orlando (MCO) - Baltimore (BWI)
  • Phoenix Sky Harbor (PHX) - Portland (PDX)
  • San Antonio (SAT) - Saint Louis (STL)
  • San Diego (SAN) - Phoenix Sky Harbor (PHX)
  • San Diego (SAN) - Portland (PDX)
  • San Jose (SJC) - Denver (DEN)
  • San Jose (SJC) - Tulsa (TUL)