Southwest Airlines flight WN 3966: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Wed,Thu 07:40 Phoenix Sky Harbor (PHX) 4 08:10 Burbank (BUR) WN 3966 Non-stop Boeing 737-700 (73W) 1:30 Valid until 2026-01-01
Fri 07:55 Phoenix Sky Harbor (PHX) 4 08:25 Burbank (BUR) WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2026-01-02
Thu,Fri,Sun 08:00 San Diego (SAN) 1 10:20 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-01-11 through 2026-01-16
Mon,Sun 08:00 San Diego (SAN) 1 10:20 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 08:00 San Diego (SAN) 1 10:20 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-02-01 through 2026-02-06
Mon,Sun 08:00 San Diego (SAN) 1 10:20 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 08:00 San Diego (SAN) 1 10:20 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-02-17 through 2026-02-23
Mon 08:00 San Diego (SAN) 1 10:20 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-800 (73H) 1:20 Operates only on 2026-03-02
Mon 08:10 Phoenix Sky Harbor (PHX) 4 08:40 Burbank (BUR) WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2026-01-05
Tue 08:20 San Diego (SAN) 1 10:45 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Operates only on 2026-01-06
Mon-Fri 08:20 San Diego (SAN) 1 10:45 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-01-07 through 2026-01-14
Tue-Fri,Sun 08:20 San Diego (SAN) 1 10:45 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-01-18 through 2026-01-23
Mon-Fri 08:20 San Diego (SAN) 1 10:45 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-01-26 through 2026-02-04
Tue-Fri,Sun 08:20 San Diego (SAN) 1 10:45 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-08 through 2026-02-13
Mon,Wed,Fri,Sun 08:20 San Diego (SAN) 1 10:45 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-16 through 2026-02-22
Tue-Fri,Sun 08:20 San Diego (SAN) 1 10:45 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-02-24 through 2026-03-04
Sat 08:40 Houston Hobby (HOU) 10:20 Denver (DEN) WN 3966 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 11:25 Phoenix Sky Harbor (PHX) 4 12:45 Albuquerque (ABQ) WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 11:25 Phoenix Sky Harbor (PHX) 4 12:45 Albuquerque (ABQ) WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-02-20 through 2026-03-01
Sat 11:40 San Diego (SAN) 1 14:05 Phoenix Sky Harbor (PHX) 4 WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-01-10 through 2026-02-07
Sat 14:45 Phoenix Sky Harbor (PHX) 4 15:55 Albuquerque (ABQ) WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2026-01-10 through 2026-02-07
Sat,Sun 15:15 Palm Springs (PSP) 18:15 Denver (DEN) WN 3966 Non-stop Boeing 737 MAX 8 (7M8) 2:00 Effective 2026-03-07 through 2026-04-05
Tue,Wed 19:10 Saint Louis (STL) 2 22:20 Philadelphia (PHL) E WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 19:55 Saint Louis (STL) 2 23:05 Philadelphia (PHL) E WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-06-04 through 2026-08-03
Sun 20:35 Saint Louis (STL) 2 23:45 Philadelphia (PHL) E WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2026-06-07 through 2026-08-02
Mon-Fri 20:40 Nashville (BNA) 21:40 Birmingham (BHM) WN 3966 Non-stop Boeing 737-700 (Scimitar Winglets) 1:00 Effective 2026-08-04 through 2026-09-30
Sun 21:20 Nashville (BNA) 22:15 Birmingham (BHM) WN 3966 Non-stop Boeing 737 MAX 8 (7M8) 0:55 Effective 2026-08-09 through 2026-09-27
Mon-Fri,Sun 23:55 Sacramento (SMF) B 05:45 Chicago Midway (MDW) WN 3966 Non-stop Boeing 737-800 (73H) 3:50 Effective 2026-04-07 through 2026-06-03 The flight arrives 1 day after departure.
Non-Direct Flights:
Mon,Thu,Fri 08:20 San Diego (SAN) 1 12:45 Albuquerque (ABQ) WN 3966 1-stop Boeing 737-700 (Scimitar Winglets) 3:25 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 08:20 San Diego (SAN) 1 12:45 Albuquerque (ABQ) WN 3966 1-stop Boeing 737-700 (Scimitar Winglets) 3:25 Effective 2026-02-20 through 2026-03-01
Sat 11:40 San Diego (SAN) 1 15:55 Albuquerque (ABQ) WN 3966 1-stop Boeing 737-700 (Scimitar Winglets) 3:15 Effective 2026-01-10 through 2026-02-07

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This flight number is listed as serving the following routes:

Houston Hobby (HOU) - Denver (DEN)
Nashville (BNA) - Birmingham (BHM)
Palm Springs (PSP) - Denver (DEN)
Phoenix Sky Harbor (PHX) - Albuquerque (ABQ)
Phoenix Sky Harbor (PHX) - Burbank (BUR)
Sacramento (SMF) - Chicago Midway (MDW)
Saint Louis (STL) - Philadelphia (PHL)
San Diego (SAN) - Albuquerque (ABQ)
San Diego (SAN) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

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Southwest Airlines flight WN 3966: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3966

07:40

Phoenix Sky Harbor (PHX) 4

08:10

Burbank (BUR)

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:30, non-stop
Boeing 737-700 (73W)

Direct Flights:

Southwest Airlines WN3966

07:55

Phoenix Sky Harbor (PHX) 4

08:25

Burbank (BUR)

Operates only on 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3966

08:00

San Diego (SAN) 1

10:20

Phoenix Sky Harbor (PHX) 4

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3966

08:00

San Diego (SAN) 1

10:20

Phoenix Sky Harbor (PHX) 4

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3966

08:00

San Diego (SAN) 1

10:20

Phoenix Sky Harbor (PHX) 4

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3966

08:00

San Diego (SAN) 1

10:20

Phoenix Sky Harbor (PHX) 4

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3966

08:00

San Diego (SAN) 1

10:20

Phoenix Sky Harbor (PHX) 4

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3966

08:00

San Diego (SAN) 1

10:20

Phoenix Sky Harbor (PHX) 4

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3966

08:10

Phoenix Sky Harbor (PHX) 4

08:40

Burbank (BUR)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

10:45

Phoenix Sky Harbor (PHX) 4

Operates only on 2026-01-06

Mon
-

Tue

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

10:45

Phoenix Sky Harbor (PHX) 4

Effective 2026-01-07 through 2026-01-14

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

10:45

Phoenix Sky Harbor (PHX) 4

Effective 2026-01-18 through 2026-01-23

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

10:45

Phoenix Sky Harbor (PHX) 4

Effective 2026-01-26 through 2026-02-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

10:45

Phoenix Sky Harbor (PHX) 4

Effective 2026-02-08 through 2026-02-13

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

10:45

Phoenix Sky Harbor (PHX) 4

Effective 2026-02-16 through 2026-02-22

Mon

Tue
-

Wed

Thu
-

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

10:45

Phoenix Sky Harbor (PHX) 4

Effective 2026-02-24 through 2026-03-04

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN3966

08:40

Houston Hobby (HOU)

10:20

Denver (DEN)

Effective 2026-02-14 through 2026-02-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:40, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN3966

11:25

Phoenix Sky Harbor (PHX) 4

12:45

Albuquerque (ABQ)

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 WN3966

11:25

Phoenix Sky Harbor (PHX) 4

12:45

Albuquerque (ABQ)

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 WN3966

11:40

San Diego (SAN) 1

14:05

Phoenix Sky Harbor (PHX) 4

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN3966

14:45

Phoenix Sky Harbor (PHX) 4

15:55

Albuquerque (ABQ)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3966

15:15

Palm Springs (PSP)

18:15

Denver (DEN)

Effective 2026-03-07 through 2026-04-05

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 2:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN3966

19:10

Saint Louis (STL) 2

22:20

Philadelphia (PHL) E

Effective 2026-06-09 through 2026-07-29

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3966

19:55

Saint Louis (STL) 2

23:05

Philadelphia (PHL) E

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3966

20:35

Saint Louis (STL) 2

23:45

Philadelphia (PHL) E

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3966

20:40

Nashville (BNA)

21:40

Birmingham (BHM)

Effective 2026-08-04 through 2026-09-30

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 1:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN3966

21:20

Nashville (BNA)

22:15

Birmingham (BHM)

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 WN3966

23:55

Sacramento (SMF) B

05:45(+1)

Chicago Midway (MDW)

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

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun

Duration: 3:50, non-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Non-Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

12:45

Albuquerque (ABQ)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3966

08:20

San Diego (SAN) 1

12:45

Albuquerque (ABQ)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 3:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN3966

11:40

San Diego (SAN) 1

15:55

Albuquerque (ABQ)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

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Parallax here

This flight number is listed as serving the following routes:

Houston Hobby (HOU) - Denver (DEN)
Nashville (BNA) - Birmingham (BHM)
Palm Springs (PSP) - Denver (DEN)
Phoenix Sky Harbor (PHX) - Albuquerque (ABQ)
Phoenix Sky Harbor (PHX) - Burbank (BUR)
Sacramento (SMF) - Chicago Midway (MDW)
Saint Louis (STL) - Philadelphia (PHL)
San Diego (SAN) - Albuquerque (ABQ)
San Diego (SAN) - Phoenix Sky Harbor (PHX)

All Southwest Airlines flights

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- CACHE: False - LANG: en - IS_EU: False