Southwest Airlines flight WN 3661: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:20 Lubbock (LBB) 06:35 Dallas Love Field (DAL) 1
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-03-05 through 2026-04-06
Sat 05:35 Lubbock (LBB) 06:45 Dallas Love Field (DAL) 1
WN 3661 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-03-07 through 2026-04-04
Tue,Wed 05:45 Lubbock (LBB) 06:55 Dallas Love Field (DAL) 1
WN 3661 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Effective 2026-03-10 through 2026-04-01
Wed,Thu 05:50 Indianapolis (IND) 06:40 Denver (DEN)
WN 3661 Non-stop Boeing 737-800 (73H) 2:50 Valid until 2026-01-01
Mon 06:00 Indianapolis (IND) 06:55 Denver (DEN)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 2:55 Operates only on 2026-01-05
Sat 10:25 Chicago Midway (MDW) 12:55 Austin (AUS)
WN 3661 Non-stop Boeing 737-800 (73H) 2:30 Effective 2026-06-06 through 2026-08-01
Sun 10:35 Orlando (MCO) 11:30 Sarasota/Bradenton (SRQ)
WN 3661 Non-stop Boeing 737 MAX 8 (7M8) 0:55 Effective 2026-08-09 through 2026-09-27
Tue,Wed 10:40 Orlando (MCO) 11:35 Sarasota/Bradenton (SRQ)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 0:55 Effective 2026-08-04 through 2026-09-30
Sat 10:50 Orlando (MCO) 11:45 Sarasota/Bradenton (SRQ)
WN 3661 Non-stop Boeing 737 MAX 8 (7M8) 0:55 Effective 2026-08-08 through 2026-09-26
Sat 10:55 San Jose (SJC) B 12:25 Las Vegas Harry Reid (LAS) 1
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-04-11 through 2026-05-30
Tue,Wed 11:00 Portland (PDX) 13:10 Las Vegas Harry Reid (LAS) 1
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-04-07 through 2026-06-03
Sun 11:10 San Jose (SJC) B 12:20 Burbank (BUR)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-07 through 2026-08-02
Sun 11:20 Lubbock (LBB) 12:35 Dallas Love Field (DAL) 1
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 12:10 San Jose (SJC) B 13:20 Burbank (BUR)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-06-04 through 2026-08-03
Sat 13:05 Las Vegas Harry Reid (LAS) 1 14:10 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-04-11 through 2026-05-30
Sun 13:40 San Jose (SJC) B 15:00 Santa Ana (SNA)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-04-12 through 2026-05-17
Sun 13:40 San Jose (SJC) B 15:00 Santa Ana (SNA)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Operates only on 2026-05-31
Tue,Wed 13:50 Las Vegas Harry Reid (LAS) 1 14:55 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-04-07 through 2026-06-03
Sun 14:55 San Jose (SJC) B 16:15 Santa Ana (SNA)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Operates only on 2026-05-24
Tue,Wed 15:30 Ontario, Los Angeles (ONT) 4 16:50 Oakland (OAK) 2
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 15:35 Ontario, Los Angeles (ONT) 4 16:55 Oakland (OAK) 2
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-04-09 through 2026-06-01
Sat 19:40 Denver (DEN) 01:00 Tampa (TPA)
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 3:20 Operates only on 2026-01-03
The flight arrives 1 day after departure.
Mon,Thu,Fri 20:30 Sacramento (SMF) B 21:50 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 20:30 Sacramento (SMF) B 21:50 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 20:35 Sacramento (SMF) B 22:00 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-01-11 through 2026-01-16
Mon,Sun 20:35 Sacramento (SMF) B 22:00 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 20:35 Sacramento (SMF) B 22:00 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-02-01 through 2026-02-06
Mon,Sun 20:35 Sacramento (SMF) B 22:00 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 20:35 Sacramento (SMF) B 22:00 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-02-17 through 2026-02-23
Mon 20:35 Sacramento (SMF) B 22:00 Ontario, Los Angeles (ONT) 4
WN 3661 Non-stop Boeing 737-800 (73H) 1:25 Operates only on 2026-03-02
Mon,Thu,Fri 20:50 Orlando (MCO) 21:45 Sarasota/Bradenton (SRQ)
WN 3661 Non-stop Boeing 737-800 (73H) 0:55 Effective 2026-08-06 through 2026-09-28
Non-Direct Flights:
Sat 10:55 San Jose (SJC) B 14:10 Ontario, Los Angeles (ONT) 4
WN 3661 1-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-04-11 through 2026-05-30
Tue,Wed 11:00 Portland (PDX) 14:55 Ontario, Los Angeles (ONT) 4
WN 3661 1-stop Boeing 737-700 (Scimitar Winglets) 3:55 Effective 2026-04-07 through 2026-06-03
Tue,Wed 13:50 Las Vegas Harry Reid (LAS) 1 16:50 Oakland (OAK) 2
WN 3661 1-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-04-07 through 2026-06-03
Tue,Wed 11:00 Portland (PDX) 16:50 Oakland (OAK) 2
WN 3661 2-stop Boeing 737-700 (Scimitar Winglets) 5:50 Effective 2026-04-07 through 2026-06-03
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3661: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3661
05:20
Lubbock (LBB)

06:35
Dallas Love Field (DAL) 1
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
05:35
Lubbock (LBB)

06:45
Dallas Love Field (DAL) 1
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3661
05:45
Lubbock (LBB)

06:55
Dallas Love Field (DAL) 1
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3661
05:50
Indianapolis (IND)

06:40
Denver (DEN)
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
06:00
Indianapolis (IND)

06:55
Denver (DEN)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
10:25
Chicago Midway (MDW)

12:55
Austin (AUS)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
10:35
Orlando (MCO)

11:30
Sarasota/Bradenton (SRQ)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 0:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3661
10:40
Orlando (MCO)

11:35
Sarasota/Bradenton (SRQ)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 0:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
10:50
Orlando (MCO)

11:45
Sarasota/Bradenton (SRQ)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 0:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3661
10:55
San Jose (SJC) B

12:25
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
11:00
Portland (PDX)

13:10
Las Vegas Harry Reid (LAS) 1
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
11:10
San Jose (SJC) B

12:20
Burbank (BUR)
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
11:20
Lubbock (LBB)

12:35
Dallas Love Field (DAL) 1
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
12:10
San Jose (SJC) B

13:20
Burbank (BUR)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
13:05
Las Vegas Harry Reid (LAS) 1

14:10
Ontario, Los Angeles (ONT) 4
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
13:40
San Jose (SJC) B

15:00
Santa Ana (SNA)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
13:40
San Jose (SJC) B

15:00
Santa Ana (SNA)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
13:50
Las Vegas Harry Reid (LAS) 1

14:55
Ontario, Los Angeles (ONT) 4
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
14:55
San Jose (SJC) B

16:15
Santa Ana (SNA)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
15:30
Ontario, Los Angeles (ONT) 4

16:50
Oakland (OAK) 2
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
15:35
Ontario, Los Angeles (ONT) 4

16:55
Oakland (OAK) 2
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
19:40
Denver (DEN)

01:00(+1)
Tampa (TPA)
Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:20, non-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3661
20:30
Sacramento (SMF) B

21:50
Ontario, Los Angeles (ONT) 4
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
20:30
Sacramento (SMF) B

21:50
Ontario, Los Angeles (ONT) 4
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3661
20:35
Sacramento (SMF) B

22:00
Ontario, Los Angeles (ONT) 4
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
20:35
Sacramento (SMF) B

22:00
Ontario, Los Angeles (ONT) 4
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
20:35
Sacramento (SMF) B

22:00
Ontario, Los Angeles (ONT) 4
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
20:35
Sacramento (SMF) B

22:00
Ontario, Los Angeles (ONT) 4
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
20:35
Sacramento (SMF) B

22:00
Ontario, Los Angeles (ONT) 4
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
20:35
Sacramento (SMF) B

22:00
Ontario, Los Angeles (ONT) 4
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3661
20:50
Orlando (MCO)

21:45
Sarasota/Bradenton (SRQ)
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 0:55, non-stop
Boeing 737-800 (73H)
Non-Direct Flights:
Southwest Airlines WN3661
10:55
San Jose (SJC) B

14:10
Ontario, Los Angeles (ONT) 4
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:15, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3661
11:00
Portland (PDX)

14:55
Ontario, Los Angeles (ONT) 4
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:55, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3661
13:50
Las Vegas Harry Reid (LAS) 1

16:50
Oakland (OAK) 2
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN3661
11:00
Portland (PDX)

16:50
Oakland (OAK) 2
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:50, 2-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Chicago Midway (MDW) - Austin (AUS)
  • Denver (DEN) - Tampa (TPA)
  • Indianapolis (IND) - Denver (DEN)
  • Las Vegas Harry Reid (LAS) - Oakland (OAK)
  • Las Vegas Harry Reid (LAS) - Ontario, Los Angeles (ONT)
  • Lubbock (LBB) - Dallas Love Field (DAL)
  • Ontario, Los Angeles (ONT) - Oakland (OAK)
  • Orlando (MCO) - Sarasota/Bradenton (SRQ)
  • Portland (PDX) - Las Vegas Harry Reid (LAS)
  • Portland (PDX) - Oakland (OAK)
  • Portland (PDX) - Ontario, Los Angeles (ONT)
  • Sacramento (SMF) - Ontario, Los Angeles (ONT)
  • San Jose (SJC) - Burbank (BUR)
  • San Jose (SJC) - Las Vegas Harry Reid (LAS)
  • San Jose (SJC) - Ontario, Los Angeles (ONT)
  • San Jose (SJC) - Santa Ana (SNA)
All Southwest Airlines flights
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