Southwest Airlines flight WN 663: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Sun 06:10 Nashville (BNA) 08:20 San Diego (SAN) 1 WN 663 Non-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2026-08-09 through 2026-09-27
Sun 06:30 Sacramento (SMF) B 07:55 Las Vegas Harry Reid (LAS) 1 WN 663 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2026-05-24
Mon,Thu,Fri 07:00 Seattle-Tacoma (SEA) 09:30 Las Vegas Harry Reid (LAS) 1 WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-08-06 through 2026-09-28
Sat 07:40 Nashville (BNA) 10:00 San Antonio (SAT) A WN 663 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 08:00 Nashville (BNA) 10:20 San Antonio (SAT) A WN 663 Non-stop Boeing 737-800 (73H) 2:20 Effective 2026-06-04 through 2026-08-03
Tue,Wed 08:00 Nashville (BNA) 10:20 San Antonio (SAT) A WN 663 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-06-09 through 2026-09-30
Sat 08:05 Nashville (BNA) 10:25 San Antonio (SAT) A WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-06-06 through 2026-08-01
Tue,Wed 08:30 San Francisco (SFO) 2 13:55 Austin (AUS) WN 663 Non-stop Boeing 737-800 (73H) 3:25 Effective 2026-03-10 through 2026-04-01
Sun 11:45 San Francisco (SFO) 2 17:10 Austin (AUS) WN 663 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 11:50 San Francisco (SFO) 2 17:15 Austin (AUS) WN 663 Non-stop Boeing 737 MAX 8 (7M8) 3:25 Effective 2026-03-05 through 2026-04-06
Sat 12:45 Phoenix Sky Harbor (PHX) 4 13:05 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-01-10 through 2026-02-07
Tue,Wed 13:45 Dallas Love Field (DAL) 1 16:05 Milwaukee (MKE) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Effective 2026-04-07 through 2026-06-03
Mon,Thu,Fri 15:00 Dallas Love Field (DAL) 1 17:20 Milwaukee (MKE) WN 663 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-09 through 2026-06-01
Sat 16:40 San Jose (SJC) B 18:05 San Diego (SAN) 1 WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2026-01-03
Mon,Tue,Fri,Sun 17:05 San Jose (SJC) B 18:30 San Diego (SAN) 1 WN 663 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Valid until 2026-01-04
Wed,Thu 17:30 San Jose (SJC) B 18:55 San Diego (SAN) 1 WN 663 Non-stop Boeing 737-700 (73W) 1:25 Valid until 2026-01-01
Mon 17:30 San Jose (SJC) B 18:55 San Diego (SAN) 1 WN 663 Non-stop Boeing 737-800 (73H) 1:25 Operates only on 2026-01-05
Sun 18:25 Kansas City (MCI) 21:50 Ronald Reagan Washington (DCA) 1 WN 663 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-06-07 through 2026-08-02
Sun 20:40 Dallas Love Field (DAL) 1 23:00 Milwaukee (MKE) WN 663 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-04-12 through 2026-05-17
Sun 20:40 Dallas Love Field (DAL) 1 23:00 Milwaukee (MKE) WN 663 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Operates only on 2026-05-31
Thu,Fri,Sun 21:25 Phoenix Sky Harbor (PHX) 4 21:45 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-01-11 through 2026-01-16
Mon,Sun 21:25 Phoenix Sky Harbor (PHX) 4 21:45 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 21:25 Phoenix Sky Harbor (PHX) 4 21:45 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-02-01 through 2026-02-06
Mon,Sun 21:25 Phoenix Sky Harbor (PHX) 4 21:45 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 21:25 Phoenix Sky Harbor (PHX) 4 21:45 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-02-17 through 2026-02-23
Mon 21:25 Phoenix Sky Harbor (PHX) 4 21:45 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Operates only on 2026-03-02
Mon,Thu,Fri 21:55 Phoenix Sky Harbor (PHX) 4 22:25 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 21:55 Phoenix Sky Harbor (PHX) 4 22:25 Santa Ana (SNA) WN 663 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-02-20 through 2026-03-01

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This flight number is listed as serving the following routes:

Dallas Love Field (DAL) - Milwaukee (MKE)
Kansas City (MCI) - Ronald Reagan Washington (DCA)
Nashville (BNA) - San Antonio (SAT)
Nashville (BNA) - San Diego (SAN)
Phoenix Sky Harbor (PHX) - Santa Ana (SNA)
Sacramento (SMF) - Las Vegas Harry Reid (LAS)
San Francisco (SFO) - Austin (AUS)
San Jose (SJC) - San Diego (SAN)
Seattle-Tacoma (SEA) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

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Southwest Airlines flight WN 663: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN663

06:10

Nashville (BNA)

08:20

San Diego (SAN) 1

Effective 2026-08-09 through 2026-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

06:30

Sacramento (SMF) B

07:55

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

07:00

Seattle-Tacoma (SEA)

09:30

Las Vegas Harry Reid (LAS) 1

Effective 2026-08-06 through 2026-09-28

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

07:40

Nashville (BNA)

10:00

San Antonio (SAT) A

Effective 2026-08-08 through 2026-09-26

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN663

08:00

Nashville (BNA)

10:20

San Antonio (SAT) A

Effective 2026-06-04 through 2026-08-03

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN663

08:00

Nashville (BNA)

10:20

San Antonio (SAT) A

Effective 2026-06-09 through 2026-09-30

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

08:05

Nashville (BNA)

10:25

San Antonio (SAT) A

Effective 2026-06-06 through 2026-08-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

08:30

San Francisco (SFO) 2

13:55

Austin (AUS)

Effective 2026-03-10 through 2026-04-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN663

11:45

San Francisco (SFO) 2

17:10

Austin (AUS)

Effective 2026-03-08 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

11:50

San Francisco (SFO) 2

17:15

Austin (AUS)

Effective 2026-03-05 through 2026-04-06

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

12:45

Phoenix Sky Harbor (PHX) 4

13:05

Santa Ana (SNA)

Effective 2026-01-10 through 2026-02-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

13:45

Dallas Love Field (DAL) 1

16:05

Milwaukee (MKE)

Effective 2026-04-07 through 2026-06-03

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

15:00

Dallas Love Field (DAL) 1

17:20

Milwaukee (MKE)

Effective 2026-04-09 through 2026-06-01

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

16:40

San Jose (SJC) B

18:05

San Diego (SAN) 1

Operates only on 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

17:05

San Jose (SJC) B

18:30

San Diego (SAN) 1

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

17:30

San Jose (SJC) B

18:55

San Diego (SAN) 1

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-700 (73W)

Direct Flights:

Southwest Airlines WN663

17:30

San Jose (SJC) B

18:55

San Diego (SAN) 1

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:25, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN663

18:25

Kansas City (MCI)

21:50

Ronald Reagan Washington (DCA) 1

Effective 2026-06-07 through 2026-08-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

20:40

Dallas Love Field (DAL) 1

23:00

Milwaukee (MKE)

Effective 2026-04-12 through 2026-05-17

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

20:40

Dallas Love Field (DAL) 1

23:00

Milwaukee (MKE)

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN663

21:25

Phoenix Sky Harbor (PHX) 4

21:45

Santa Ana (SNA)

Effective 2026-01-11 through 2026-01-16

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

21:25

Phoenix Sky Harbor (PHX) 4

21:45

Santa Ana (SNA)

Effective 2026-01-19 through 2026-01-25

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

21:25

Phoenix Sky Harbor (PHX) 4

21:45

Santa Ana (SNA)

Effective 2026-02-01 through 2026-02-06

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

21:25

Phoenix Sky Harbor (PHX) 4

21:45

Santa Ana (SNA)

Effective 2026-02-09 through 2026-02-15

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

21:25

Phoenix Sky Harbor (PHX) 4

21:45

Santa Ana (SNA)

Effective 2026-02-17 through 2026-02-23

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

21:25

Phoenix Sky Harbor (PHX) 4

21:45

Santa Ana (SNA)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

21:55

Phoenix Sky Harbor (PHX) 4

22:25

Santa Ana (SNA)

Effective 2026-02-12 through 2026-02-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN663

21:55

Phoenix Sky Harbor (PHX) 4

22:25

Santa Ana (SNA)

Effective 2026-02-20 through 2026-03-01

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)

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Parallax here

This flight number is listed as serving the following routes:

Dallas Love Field (DAL) - Milwaukee (MKE)
Kansas City (MCI) - Ronald Reagan Washington (DCA)
Nashville (BNA) - San Antonio (SAT)
Nashville (BNA) - San Diego (SAN)
Phoenix Sky Harbor (PHX) - Santa Ana (SNA)
Sacramento (SMF) - Las Vegas Harry Reid (LAS)
San Francisco (SFO) - Austin (AUS)
San Jose (SJC) - San Diego (SAN)
Seattle-Tacoma (SEA) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

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