Southwest Airlines flight WN 3664: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Fri 06:25 Kansas City (MCI) 07:15 Phoenix Sky Harbor (PHX) 4
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Operates only on 2025-07-04
Sun 09:15 Saint Louis (STL) 2 10:35 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2025-11-30
Mon,Thu,Fri 09:25 Nashville (BNA) 11:50 Charlotte (CLT)
WN 3664 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-10-02 through 2025-10-31
Sun 09:45 Nashville (BNA) 12:15 Charlotte (CLT)
WN 3664 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-10-05 through 2025-10-26
Tue,Wed 10:00 El Paso (ELP) 12:45 Love Field, Dallas (DAL) 1
WN 3664 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2025-10-07 through 2025-10-29
Sat 10:25 Saint Louis (STL) 2 11:45 Denver (DEN)
WN 3664 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-11-08 through 2025-11-15
Sat 10:25 Saint Louis (STL) 2 11:45 Denver (DEN)
WN 3664 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-12-06 through 2025-12-13
Sun 10:35 Albuquerque (ABQ) 11:10 Las Vegas Harry Reid (LAS) 1
WN 3664 Non-stop Boeing 737-800 (73H) 1:35 Effective 2025-06-08 through 2025-08-03
Mon,Thu,Fri,Sun 11:00 Saint Louis (STL) 2 12:20 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 11:00 Saint Louis (STL) 2 12:20 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-11-21 through 2025-11-28
Fri,Sun 11:00 Saint Louis (STL) 2 12:20 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-12-07 through 2025-12-14
Thu 11:00 Saint Louis (STL) 2 12:20 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2025-12-18
Mon 11:00 Saint Louis (STL) 2 12:20 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2026-01-05
Mon-Wed 11:05 Saint Louis (STL) 2 12:25 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 11:05 Saint Louis (STL) 2 12:25 Denver (DEN)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2025-12-19 through 2026-01-04
Mon,Thu,Fri 12:30 Charlotte (CLT) 13:55 Baltimore (BWI)
WN 3664 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2025-10-02 through 2025-10-31
Tue,Wed 13:00 Albuquerque (ABQ) 13:35 Las Vegas Harry Reid (LAS) 1
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Effective 2025-06-10 through 2025-07-30
Tue,Wed 13:20 Love Field, Dallas (DAL) 1 16:50 Charlotte (CLT)
WN 3664 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2025-10-07 through 2025-10-29
Sat 13:35 Baltimore (BWI) 16:15 Austin (AUS)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 3:40 Effective 2025-10-04 through 2025-11-01
Mon,Thu,Fri 14:35 Baltimore (BWI) 17:15 Austin (AUS)
WN 3664 Non-stop Boeing 737-700 (Scimitar Winglets) 3:40 Effective 2025-10-02 through 2025-10-31
Sun 14:45 San Francisco (SFO) 2 16:20 San Diego (SAN) 1
WN 3664 Non-stop Boeing 737-700 (73W) 1:35 Operates only on 2025-08-31
Sat 15:15 Houston Hobby (HOU) 17:15 Nashville (BNA)
WN 3664 Non-stop Boeing 737-800 (73H) 2:00 Valid until 2025-05-31
Tue,Wed 15:55 Houston Hobby (HOU) 17:55 Nashville (BNA)
WN 3664 Non-stop Boeing 737-800 (73H) 2:00 Valid until 2025-06-04
Mon,Thu,Fri 16:20 Houston Hobby (HOU) 18:20 Nashville (BNA)
WN 3664 Non-stop Boeing 737-800 (73H) 2:00 Valid until 2025-06-02
Sun 16:55 San Diego (SAN) 1 18:20 Phoenix Sky Harbor (PHX) 4
WN 3664 Non-stop Boeing 737-700 (73W) 1:25 Operates only on 2025-08-31
Tue,Wed 17:25 Charlotte (CLT) 18:55 Baltimore (BWI)
WN 3664 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2025-10-07 through 2025-10-29
Sat 17:45 Chicago O'Hare (ORD) 5 21:25 Orlando (MCO)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2025-08-09 through 2025-09-27
Sun 18:05 Houston Hobby (HOU) 20:00 Nashville (BNA)
WN 3664 Non-stop Boeing 737-800 (73H) 1:55 Valid until 2025-05-18
Sun 18:05 Houston Hobby (HOU) 20:00 Nashville (BNA)
WN 3664 Non-stop Boeing 737-800 (73H) 1:55 Operates only on 2025-06-01
Sat 18:10 Detroit (DTW) E 19:45 Las Vegas Harry Reid (LAS) 1
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2025-11-22 through 2025-11-29
Sat 18:10 Detroit (DTW) E 19:45 Las Vegas Harry Reid (LAS) 1
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 4:35 Effective 2025-12-20 through 2026-01-03
Sun 19:00 Houston Hobby (HOU) 20:55 Nashville (BNA)
WN 3664 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Operates only on 2025-05-25
Tue,Wed 20:15 Saint Louis (STL) 2 21:35 Denver (DEN)
WN 3664 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-11-04 through 2025-11-12
Mon-Thu 20:15 Saint Louis (STL) 2 21:35 Denver (DEN)
WN 3664 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-11-17 through 2025-11-20
Mon-Fri 20:15 Saint Louis (STL) 2 21:35 Denver (DEN)
WN 3664 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-12-02 through 2025-12-11
Mon-Wed 20:15 Saint Louis (STL) 2 21:35 Denver (DEN)
WN 3664 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-12-15 through 2025-12-17
Wed,Thu 20:15 Saint Louis (STL) 2 21:35 Denver (DEN)
WN 3664 Non-stop Boeing 737-800 (73H) 2:20 Effective 2025-12-24 through 2026-01-01
Non-Direct Flights:
Mon,Thu,Fri 09:25 Nashville (BNA) 13:55 Baltimore (BWI)
WN 3664 1-stop Boeing 737-700 (Scimitar Winglets) 3:30 Effective 2025-10-02 through 2025-10-31
Tue,Wed 10:00 El Paso (ELP) 16:50 Charlotte (CLT)
WN 3664 1-stop Boeing 737-700 (Scimitar Winglets) 4:50 Effective 2025-10-07 through 2025-10-29
Mon,Thu,Fri 12:30 Charlotte (CLT) 17:15 Austin (AUS)
WN 3664 1-stop Boeing 737-700 (Scimitar Winglets) 5:45 Effective 2025-10-02 through 2025-10-31
Tue,Wed 13:20 Love Field, Dallas (DAL) 1 18:55 Baltimore (BWI)
WN 3664 1-stop Boeing 737-700 (Scimitar Winglets) 4:35 Effective 2025-10-07 through 2025-10-29
Sun 14:45 San Francisco (SFO) 2 18:20 Phoenix Sky Harbor (PHX) 4
WN 3664 1-stop Boeing 737-700 (73W) 3:35 Operates only on 2025-08-31
Mon,Thu,Fri 09:25 Nashville (BNA) 17:15 Austin (AUS)
WN 3664 2-stop Boeing 737-700 (Scimitar Winglets) 7:50 Effective 2025-10-02 through 2025-10-31
Tue,Wed 10:00 El Paso (ELP) 18:55 Baltimore (BWI)
WN 3664 2-stop Boeing 737-700 (Scimitar Winglets) 6:55 Effective 2025-10-07 through 2025-10-29
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This flight number is listed as serving the following routes:
Southwest Airlines flight WN 3664: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Southwest Airlines WN3664
Operates only on 2025-07-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Operates only on 2025-11-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-11-08 through 2025-11-15
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-12-06 through 2025-12-13
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-11-02 through 2025-11-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-11-21 through 2025-11-28
Mon
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-12-07 through 2025-12-14
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Operates only on 2025-12-18
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:35, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN3664
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN3664
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Operates only on 2025-05-25
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3664
Effective 2025-11-04 through 2025-11-12
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-11-17 through 2025-11-20
Mon
Tue
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-12-02 through 2025-12-11
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-12-15 through 2025-12-17
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3664
Effective 2025-12-24 through 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN3664
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:30, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:45, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:35, 1-stop
Boeing 737-700 (73W)

Southwest Airlines WN3664
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 7:50, 2-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3664
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:55, 2-stop
Boeing 737-700 (Scimitar Winglets)
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This flight number is listed as serving the following routes:
  • Albuquerque (ABQ) - Las Vegas Harry Reid (LAS)
  • Baltimore (BWI) - Austin (AUS)
  • Charlotte (CLT) - Austin (AUS)
  • Charlotte (CLT) - Baltimore (BWI)
  • Chicago O'Hare (ORD) - Orlando (MCO)
  • Detroit (DTW) - Las Vegas Harry Reid (LAS)
  • El Paso (ELP) - Baltimore (BWI)
  • El Paso (ELP) - Charlotte (CLT)
  • El Paso (ELP) - Love Field, Dallas (DAL)
  • Houston Hobby (HOU) - Nashville (BNA)
  • Kansas City (MCI) - Phoenix Sky Harbor (PHX)
  • Love Field, Dallas (DAL) - Baltimore (BWI)
  • Love Field, Dallas (DAL) - Charlotte (CLT)
  • Nashville (BNA) - Austin (AUS)
  • Nashville (BNA) - Baltimore (BWI)
  • Nashville (BNA) - Charlotte (CLT)
  • Saint Louis (STL) - Denver (DEN)
  • San Diego (SAN) - Phoenix Sky Harbor (PHX)
  • San Francisco (SFO) - Phoenix Sky Harbor (PHX)
  • San Francisco (SFO) - San Diego (SAN)