Southwest Airlines flight WN 661: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 06:30 San Jose (SJC) B 10:05 Denver (DEN)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Operates only on 2026-01-03
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 Valid until 2026-01-04
Mon,Thu,Fri 07:45 San Jose (SJC) B 09:35 Phoenix Sky Harbor (PHX) 4
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-04-09 through 2026-06-01
Sun 08:15 San Jose (SJC) B 10:05 Phoenix Sky Harbor (PHX) 4
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-04-12 through 2026-05-17
Sun 08:15 San Jose (SJC) B 10:05 Phoenix Sky Harbor (PHX) 4
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Operates only on 2026-05-31
Sat 08:40 San Jose (SJC) B 10:35 Phoenix Sky Harbor (PHX) 4
WN 661 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-04-11 through 2026-05-30
Thu,Fri,Sun 09:00 Las Vegas Harry Reid (LAS) 1 11:50 Boise (BOI)
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-01-11 through 2026-01-16
Mon,Sun 09:00 Las Vegas Harry Reid (LAS) 1 11:50 Boise (BOI)
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 09:00 Las Vegas Harry Reid (LAS) 1 11:50 Boise (BOI)
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-02-01 through 2026-02-06
Mon,Sun 09:00 Las Vegas Harry Reid (LAS) 1 11:50 Boise (BOI)
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 09:00 Las Vegas Harry Reid (LAS) 1 11:50 Boise (BOI)
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-02-17 through 2026-02-23
Mon 09:00 Las Vegas Harry Reid (LAS) 1 11:50 Boise (BOI)
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Operates only on 2026-03-02
Tue,Wed 09:05 San Jose (SJC) B 10:55 Phoenix Sky Harbor (PHX) 4
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2026-04-07 through 2026-06-03
Sun 10:00 San Jose (SJC) B 11:55 Phoenix Sky Harbor (PHX) 4
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Operates only on 2026-05-24
Sat 10:10 Las Vegas Harry Reid (LAS) 1 13:00 Boise (BOI)
WN 661 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-01-10 through 2026-02-07
Sat 10:45 Denver (DEN) 13:15 Tulsa (TUL)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2026-01-03
Tue,Wed 11:15 Sacramento (SMF) B 13:05 Spokane (GEG)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 1:50 Effective 2026-08-04 through 2026-09-30
Sun 12:30 Phoenix Sky Harbor (PHX) 4 17:40 Nashville (BNA)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 3:10 Operates only on 2026-05-24
Sun 13:45 Saint Louis (STL) 2 15:45 Austin (AUS)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-08-09 through 2026-09-27
Sat 13:55 Milwaukee (MKE) 17:40 Orlando (MCO)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-02-14 through 2026-02-28
Tue 14:45 Austin (AUS) 18:10 Jacksonville (JAX)
WN 661 Non-stop Boeing 737-800 (73H) 2:25 Operates only on 2026-01-06
Mon-Fri 14:45 Austin (AUS) 18:10 Jacksonville (JAX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-07 through 2026-01-14
Tue-Fri,Sun 14:45 Austin (AUS) 18:10 Jacksonville (JAX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-18 through 2026-01-23
Mon-Fri 14:45 Austin (AUS) 18:10 Jacksonville (JAX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 14:45 Austin (AUS) 18:10 Jacksonville (JAX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-08 through 2026-02-11
Mon,Thu,Fri 14:45 Milwaukee (MKE) 18:25 Orlando (MCO)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-12 through 2026-02-16
Tue,Wed 14:45 Austin (AUS) 18:10 Jacksonville (JAX)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-18 through 2026-03-04
Thu,Fri,Sun 14:45 Milwaukee (MKE) 18:25 Orlando (MCO)
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-02-20 through 2026-03-01
Daily 15:45 Lihue (LIH) 16:25 Honolulu (HNL) 2
WN 661 Non-stop Boeing 737 MAX 8 (7M8) 0:40 Effective 2026-06-04 through 2026-08-03
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
Mon,Thu,Fri 18:15 San Diego (SAN) 1 19:50 Reno (RNO)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-08-06 through 2026-09-28
Sat 18:15 San Diego (SAN) 1 19:50 Reno (RNO)
WN 661 Non-stop Boeing 737-800 (73H) 1:35 Effective 2026-08-08 through 2026-09-26
Tue,Wed 21:35 Baltimore (BWI) 22:30 Richmond (RIC)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-03-10 through 2026-04-01
Sat 22:25 Baltimore (BWI) 23:20 Richmond (RIC)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-03-07 through 2026-04-04
Mon,Thu,Fri 22:30 Baltimore (BWI) 23:25 Richmond (RIC)
WN 661 Non-stop Boeing 737-800 (73H) 0:55 Effective 2026-03-05 through 2026-04-06
Sun 22:55 Baltimore (BWI) 23:50 Richmond (RIC)
WN 661 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-03-08 through 2026-04-05
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 Operates only on 2026-01-03
Sun 10:00 San Jose (SJC) B 17:40 Nashville (BNA)
WN 661 1-stop Boeing 737-700 (Scimitar Winglets) 5:40 Operates only on 2026-05-24
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 661: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN661
06:30
San Jose (SJC) B

10:05
Denver (DEN)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
06:40
San Jose (SJC) B

10:10
Denver (DEN)
Valid until 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
07:45
San Jose (SJC) B

09:35
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
08:15
San Jose (SJC) B

10:05
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
08:15
San Jose (SJC) B

10:05
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
08:40
San Jose (SJC) B

10:35
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:55, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
09:00
Las Vegas Harry Reid (LAS) 1

11:50
Boise (BOI)
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
09:00
Las Vegas Harry Reid (LAS) 1

11:50
Boise (BOI)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
09:00
Las Vegas Harry Reid (LAS) 1

11:50
Boise (BOI)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
09:00
Las Vegas Harry Reid (LAS) 1

11:50
Boise (BOI)
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
09:00
Las Vegas Harry Reid (LAS) 1

11:50
Boise (BOI)
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
09:00
Las Vegas Harry Reid (LAS) 1

11:50
Boise (BOI)
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
09:05
San Jose (SJC) B

10:55
Phoenix Sky Harbor (PHX) 4
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
10:00
San Jose (SJC) B

11:55
Phoenix Sky Harbor (PHX) 4
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
10:10
Las Vegas Harry Reid (LAS) 1

13:00
Boise (BOI)
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
10:45
Denver (DEN)

13:15
Tulsa (TUL)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
11:15
Sacramento (SMF) B

13:05
Spokane (GEG)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
12:30
Phoenix Sky Harbor (PHX) 4

17:40
Nashville (BNA)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
13:45
Saint Louis (STL) 2

15:45
Austin (AUS)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
13:55
Milwaukee (MKE)

17:40
Orlando (MCO)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
14:45
Austin (AUS)

18:10
Jacksonville (JAX)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
14:45
Austin (AUS)

18:10
Jacksonville (JAX)
Effective 2026-01-07 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
14:45
Austin (AUS)

18:10
Jacksonville (JAX)
Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
14:45
Austin (AUS)

18:10
Jacksonville (JAX)
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
14:45
Austin (AUS)

18:10
Jacksonville (JAX)
Effective 2026-02-08 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
14:45
Milwaukee (MKE)

18:25
Orlando (MCO)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
14:45
Austin (AUS)

18:10
Jacksonville (JAX)
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
14:45
Milwaukee (MKE)

18:25
Orlando (MCO)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
15:45
Lihue (LIH)

16:25
Honolulu (HNL) 2
Effective 2026-06-04 through 2026-08-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 0:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN661
16:20
Orlando (MCO)

17:55
Atlanta (ATL) N
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
18:15
San Diego (SAN) 1

19:50
Reno (RNO)
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
18:15
San Diego (SAN) 1

19:50
Reno (RNO)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
21:35
Baltimore (BWI)

22:30
Richmond (RIC)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
22:25
Baltimore (BWI)

23:20
Richmond (RIC)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN661
22:30
Baltimore (BWI)

23:25
Richmond (RIC)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 0:55, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN661
22:55
Baltimore (BWI)

23:50
Richmond (RIC)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN661
06:30
San Jose (SJC) B

13:15
Tulsa (TUL)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:45, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN661
10:00
San Jose (SJC) B

17:40
Nashville (BNA)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:40, 1-stop
Boeing 737-700 (Scimitar Winglets)
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Parallax here
This flight number is listed as serving the following routes:
  • Austin (AUS) - Jacksonville (JAX)
  • Baltimore (BWI) - Richmond (RIC)
  • Denver (DEN) - Tulsa (TUL)
  • Las Vegas Harry Reid (LAS) - Boise (BOI)
  • Lihue (LIH) - Honolulu (HNL)
  • Milwaukee (MKE) - Orlando (MCO)
  • Orlando (MCO) - Atlanta (ATL)
  • Phoenix Sky Harbor (PHX) - Nashville (BNA)
  • Sacramento (SMF) - Spokane (GEG)
  • Saint Louis (STL) - Austin (AUS)
  • San Diego (SAN) - Reno (RNO)
  • San Jose (SJC) - Denver (DEN)
  • San Jose (SJC) - Nashville (BNA)
  • San Jose (SJC) - Phoenix Sky Harbor (PHX)
  • San Jose (SJC) - Tulsa (TUL)
All Southwest Airlines flights
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