Southwest Airlines flight WN 4640: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sat 05:30 Birmingham (BHM) 06:35 Nashville (BNA)
WN 4640 Non-stop Boeing 737-800 (73H) 1:05 Effective 2026-03-07 through 2026-04-04
Tue,Wed 05:40 Birmingham (BHM) 06:45 Nashville (BNA)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 1:05 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 05:45 Birmingham (BHM) 06:50 Nashville (BNA)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 1:05 Effective 2026-03-05 through 2026-04-06
Sun 05:45 Birmingham (BHM) 06:50 Nashville (BNA)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2026-03-08 through 2026-04-05
Thu,Fri,Sun 06:15 Dallas Love Field (DAL) 1 07:45 Kansas City (MCI)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-11 through 2026-01-16
Mon,Sun 06:15 Dallas Love Field (DAL) 1 07:45 Kansas City (MCI)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 06:15 Dallas Love Field (DAL) 1 07:45 Kansas City (MCI)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-01 through 2026-02-06
Mon,Sun 06:15 Dallas Love Field (DAL) 1 07:45 Kansas City (MCI)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 06:15 Dallas Love Field (DAL) 1 07:45 Kansas City (MCI)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-17 through 2026-02-23
Mon 06:15 Dallas Love Field (DAL) 1 07:45 Kansas City (MCI)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2026-03-02
Mon,Thu,Fri 06:20 Dallas Love Field (DAL) 1 07:50 Kansas City (MCI)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 06:20 Dallas Love Field (DAL) 1 07:50 Kansas City (MCI)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-02-20 through 2026-03-01
Sat 07:00 Dallas Love Field (DAL) 1 08:30 Kansas City (MCI)
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-14 through 2026-02-28
Sat 07:00 Dallas Love Field (DAL) 1 11:15 New York LaGuardia (LGA) B
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-06-06 through 2026-08-01
Tue,Wed,Sun 11:25 Fort Lauderdale (FLL) 1 14:00 Ronald Reagan Washington (DCA) 1
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2026-04-07 through 2026-05-20
Sun 11:25 Fort Lauderdale (FLL) 1 14:00 Ronald Reagan Washington (DCA) 1
WN 4640 Non-stop Boeing 737-800 (73H) 2:35 Operates only on 2026-05-24
Tue,Wed,Sun 11:25 Fort Lauderdale (FLL) 1 14:00 Ronald Reagan Washington (DCA) 1
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 2:35 Effective 2026-05-26 through 2026-06-03
Mon,Thu,Fri 11:35 Fort Lauderdale (FLL) 1 14:15 Ronald Reagan Washington (DCA) 1
WN 4640 Non-stop Boeing 737-700 (Scimitar Winglets) 2:40 Effective 2026-04-09 through 2026-06-01
Mon,Tue,Fri,Sun 14:55 Phoenix Sky Harbor (PHX) 4 18:25 Houston Hobby (HOU)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Valid until 2026-01-04
Sat 16:05 Phoenix Sky Harbor (PHX) 4 19:30 Houston Hobby (HOU)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Valid until 2026-01-03
Sat 16:55 Baltimore (BWI) 19:10 Houston Hobby (HOU)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-08-08 through 2026-09-26
Tue,Wed 17:40 Baltimore (BWI) 19:55 Houston Hobby (HOU)
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-08-04 through 2026-09-30
Sat 18:50 Fort Lauderdale (FLL) 1 21:25 Ronald Reagan Washington (DCA) 1
WN 4640 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-04-11 through 2026-05-30
Sun 19:55 Baltimore (BWI) 22:10 Houston Hobby (HOU)
WN 4640 Non-stop Boeing 737-800 (73H) 3:15 Effective 2026-08-09 through 2026-09-27
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4640: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4640
05:30
Birmingham (BHM)

06:35
Nashville (BNA)
Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:05, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4640
05:40
Birmingham (BHM)

06:45
Nashville (BNA)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
05:45
Birmingham (BHM)

06:50
Nashville (BNA)
Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
05:45
Birmingham (BHM)

06:50
Nashville (BNA)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
06:15
Dallas Love Field (DAL) 1

07:45
Kansas City (MCI)
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
06:15
Dallas Love Field (DAL) 1

07:45
Kansas City (MCI)
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
06:15
Dallas Love Field (DAL) 1

07:45
Kansas City (MCI)
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
06:15
Dallas Love Field (DAL) 1

07:45
Kansas City (MCI)
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
06:15
Dallas Love Field (DAL) 1

07:45
Kansas City (MCI)
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
06:15
Dallas Love Field (DAL) 1

07:45
Kansas City (MCI)
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
06:20
Dallas Love Field (DAL) 1

07:50
Kansas City (MCI)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
06:20
Dallas Love Field (DAL) 1

07:50
Kansas City (MCI)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
07:00
Dallas Love Field (DAL) 1

08:30
Kansas City (MCI)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
07:00
Dallas Love Field (DAL) 1

11:15
New York LaGuardia (LGA) B
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
11:25
Fort Lauderdale (FLL) 1

14:00
Ronald Reagan Washington (DCA) 1
Effective 2026-04-07 through 2026-05-20
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
11:25
Fort Lauderdale (FLL) 1

14:00
Ronald Reagan Washington (DCA) 1
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4640
11:25
Fort Lauderdale (FLL) 1

14:00
Ronald Reagan Washington (DCA) 1
Effective 2026-05-26 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
11:35
Fort Lauderdale (FLL) 1

14:15
Ronald Reagan Washington (DCA) 1
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4640
14:55
Phoenix Sky Harbor (PHX) 4

18:25
Houston Hobby (HOU)
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 WN4640
16:05
Phoenix Sky Harbor (PHX) 4

19:30
Houston Hobby (HOU)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
16:55
Baltimore (BWI)

19:10
Houston Hobby (HOU)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
17:40
Baltimore (BWI)

19:55
Houston Hobby (HOU)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
18:50
Fort Lauderdale (FLL) 1

21:25
Ronald Reagan Washington (DCA) 1
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4640
19:55
Baltimore (BWI)

22:10
Houston Hobby (HOU)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:15, non-stop
Boeing 737-800 (73H)
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Houston Hobby (HOU)
  • Birmingham (BHM) - Nashville (BNA)
  • Dallas Love Field (DAL) - Kansas City (MCI)
  • Dallas Love Field (DAL) - New York LaGuardia (LGA)
  • Fort Lauderdale (FLL) - Ronald Reagan Washington (DCA)
  • Phoenix Sky Harbor (PHX) - Houston Hobby (HOU)
All Southwest Airlines flights
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