Southwest Airlines flight WN 3391: Multiple routes

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FLIGHT SCHEDULE
Direct Flights:
Tue,Wed 07:00 Phoenix Sky Harbor (PHX) 4 10:05 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2025-11-04 through 2025-11-12
Mon-Thu 07:00 Phoenix Sky Harbor (PHX) 4 10:05 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2025-11-17 through 2025-11-20
Mon-Fri 07:00 Phoenix Sky Harbor (PHX) 4 10:05 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2025-12-02 through 2025-12-11
Mon-Wed 07:00 Phoenix Sky Harbor (PHX) 4 10:05 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2025-12-15 through 2025-12-17
Wed,Thu 07:00 Phoenix Sky Harbor (PHX) 4 10:05 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2025-12-24 through 2026-01-01
Mon,Thu,Fri,Sun 07:30 Los Angeles (LAX) 1 09:50 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 07:30 Los Angeles (LAX) 1 09:50 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-11-21 through 2025-11-28
Fri,Sun 07:30 Los Angeles (LAX) 1 09:50 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-12-07 through 2025-12-14
Thu 07:30 Los Angeles (LAX) 1 09:50 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737-800 (73H) 1:20 Operates only on 2025-12-18
Mon 07:30 Los Angeles (LAX) 1 09:50 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737-800 (73H) 1:20 Operates only on 2026-01-05
Sun 08:25 Phoenix Sky Harbor (PHX) 4 14:50 Louisville (SDF) WN 3391 Non-stop Boeing 737-700 (73W) 3:25 Effective 2025-06-08 through 2025-08-03
Sun 09:35 Denver (DEN) 15:30 Boston Logan (BOS) B WN 3391 Non-stop Boeing 737-800 (73H) 3:55 Operates only on 2025-05-25
Sat 10:15 Phoenix Sky Harbor (PHX) 4 13:25 San Antonio (SAT) A WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-11-08 through 2025-11-15
Sat 10:15 Phoenix Sky Harbor (PHX) 4 13:25 San Antonio (SAT) A WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-12-06 through 2025-12-13
Sun 10:30 Denver (DEN) 16:30 Boston Logan (BOS) B WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Valid until 2025-05-18
Sun 10:30 Denver (DEN) 16:30 Boston Logan (BOS) B WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 4:00 Operates only on 2025-06-01
Mon,Thu,Fri,Sun 10:30 Phoenix Sky Harbor (PHX) 4 13:35 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 10:30 Phoenix Sky Harbor (PHX) 4 13:35 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-11-21 through 2025-11-28
Fri,Sun 10:30 Phoenix Sky Harbor (PHX) 4 13:35 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-800 (73H) 2:05 Effective 2025-12-07 through 2025-12-14
Thu 10:30 Phoenix Sky Harbor (PHX) 4 13:35 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-800 (73H) 2:05 Operates only on 2025-12-18
Mon 10:30 Phoenix Sky Harbor (PHX) 4 13:35 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-800 (73H) 2:05 Operates only on 2026-01-05
Tue,Wed 10:40 San Antonio (SAT) A 11:50 Love Field, Dallas (DAL) 1 WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-11-04 through 2025-11-12
Mon-Thu 10:40 San Antonio (SAT) A 11:50 Love Field, Dallas (DAL) 1 WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-11-17 through 2025-11-20
Mon-Fri 10:40 San Antonio (SAT) A 11:50 Love Field, Dallas (DAL) 1 WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-12-02 through 2025-12-11
Mon-Wed 10:40 San Antonio (SAT) A 11:50 Love Field, Dallas (DAL) 1 WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-12-15 through 2025-12-17
Wed,Thu 10:40 San Antonio (SAT) A 11:50 Love Field, Dallas (DAL) 1 WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 1:10 Effective 2025-12-24 through 2026-01-01
Sat 11:05 Denver (DEN) 17:00 Boston Logan (BOS) B WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 3:55 Valid until 2025-05-31
Mon-Wed 11:30 Kansas City (MCI) 12:35 Saint Louis (STL) 2 WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 11:30 Kansas City (MCI) 12:35 Saint Louis (STL) 2 WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 1:05 Effective 2025-12-19 through 2026-01-04
Sun 11:45 Phoenix Sky Harbor (PHX) 4 14:55 San Antonio (SAT) A WN 3391 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Operates only on 2025-11-30
Sat 14:15 Kansas City (MCI) 15:20 Saint Louis (STL) 2 WN 3391 Non-stop Boeing 737-800 (73H) 1:05 Effective 2025-11-22 through 2025-11-29
Sat 14:15 Kansas City (MCI) 15:20 Saint Louis (STL) 2 WN 3391 Non-stop Boeing 737-800 (73H) 1:05 Effective 2025-12-20 through 2026-01-03
Tue,Wed 15:00 Boston Logan (BOS) B 16:35 Baltimore (BWI) WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Valid until 2025-06-04
Sat 15:35 Denver (DEN) 16:30 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737-800 (73H) 1:55 Effective 2025-08-09 through 2025-09-27
Mon,Thu,Fri 15:50 Denver (DEN) 16:45 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-08-07 through 2025-09-29
Sun 15:55 Denver (DEN) 16:50 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-08-10 through 2025-08-24
Sun 15:55 Denver (DEN) 16:50 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2025-09-07 through 2025-09-28
Sat 16:05 Saint Louis (STL) 2 19:45 Miami (MIA) WN 3391 Non-stop Boeing 737-800 (73H) 2:40 Effective 2025-11-22 through 2025-11-29
Sat 16:05 Saint Louis (STL) 2 19:45 Miami (MIA) WN 3391 Non-stop Boeing 737-800 (73H) 2:40 Effective 2025-12-20 through 2026-01-03
Tue,Wed 18:25 Denver (DEN) 19:25 Phoenix Sky Harbor (PHX) 4 WN 3391 Non-stop Boeing 737-800 (73H) 2:00 Effective 2025-08-05 through 2025-10-01
Mon,Thu,Fri 21:45 Boston Logan (BOS) B 23:20 Baltimore (BWI) WN 3391 Non-stop Boeing 737-800 (73H) 1:35 Valid until 2025-06-02
Non-Direct Flights:
Tue,Wed 07:00 Phoenix Sky Harbor (PHX) 4 11:50 Love Field, Dallas (DAL) 1 WN 3391 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2025-11-04 through 2025-11-12
Mon-Thu 07:00 Phoenix Sky Harbor (PHX) 4 11:50 Love Field, Dallas (DAL) 1 WN 3391 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2025-11-17 through 2025-11-20
Mon-Fri 07:00 Phoenix Sky Harbor (PHX) 4 11:50 Love Field, Dallas (DAL) 1 WN 3391 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2025-12-02 through 2025-12-11
Mon-Wed 07:00 Phoenix Sky Harbor (PHX) 4 11:50 Love Field, Dallas (DAL) 1 WN 3391 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2025-12-15 through 2025-12-17
Wed,Thu 07:00 Phoenix Sky Harbor (PHX) 4 11:50 Love Field, Dallas (DAL) 1 WN 3391 1-stop Boeing 737-700 (Scimitar Winglets) 3:50 Effective 2025-12-24 through 2026-01-01
Mon,Thu,Fri,Sun 07:30 Los Angeles (LAX) 1 13:35 San Antonio (SAT) A WN 3391 1-stop Boeing 737-800 (73H) 4:05 Effective 2025-11-02 through 2025-11-16
Mon,Fri,Sun 07:30 Los Angeles (LAX) 1 13:35 San Antonio (SAT) A WN 3391 1-stop Boeing 737-800 (73H) 4:05 Effective 2025-11-21 through 2025-11-28
Fri,Sun 07:30 Los Angeles (LAX) 1 13:35 San Antonio (SAT) A WN 3391 1-stop Boeing 737-800 (73H) 4:05 Effective 2025-12-07 through 2025-12-14
Thu 07:30 Los Angeles (LAX) 1 13:35 San Antonio (SAT) A WN 3391 1-stop Boeing 737-800 (73H) 4:05 Operates only on 2025-12-18
Mon 07:30 Los Angeles (LAX) 1 13:35 San Antonio (SAT) A WN 3391 1-stop Boeing 737-800 (73H) 4:05 Operates only on 2026-01-05
Sat 14:15 Kansas City (MCI) 19:45 Miami (MIA) WN 3391 1-stop Boeing 737-800 (73H) 4:30 Effective 2025-11-22 through 2025-11-29
Sat 14:15 Kansas City (MCI) 19:45 Miami (MIA) WN 3391 1-stop Boeing 737-800 (73H) 4:30 Effective 2025-12-20 through 2026-01-03

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This flight number is listed as serving the following routes:

Boston Logan (BOS) - Baltimore (BWI)
Denver (DEN) - Boston Logan (BOS)
Denver (DEN) - Phoenix Sky Harbor (PHX)
Kansas City (MCI) - Miami (MIA)
Kansas City (MCI) - Saint Louis (STL)
Los Angeles (LAX) - Phoenix Sky Harbor (PHX)
Los Angeles (LAX) - San Antonio (SAT)
Phoenix Sky Harbor (PHX) - Louisville (SDF)
Phoenix Sky Harbor (PHX) - Love Field, Dallas (DAL)
Phoenix Sky Harbor (PHX) - San Antonio (SAT)
Saint Louis (STL) - Miami (MIA)
San Antonio (SAT) - Love Field, Dallas (DAL)

All Southwest Airlines flights

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Southwest Airlines flight WN 3391: Multiple routes

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FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

10:05

San Antonio (SAT) A

Effective 2025-11-04 through 2025-11-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

10:05

San Antonio (SAT) A

Effective 2025-11-17 through 2025-11-20

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

10:05

San Antonio (SAT) A

Effective 2025-12-02 through 2025-12-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

10:05

San Antonio (SAT) A

Effective 2025-12-15 through 2025-12-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

10:05

San Antonio (SAT) A

Effective 2025-12-24 through 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

09:50

Phoenix Sky Harbor (PHX) 4

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

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

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

09:50

Phoenix Sky Harbor (PHX) 4

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

09:50

Phoenix Sky Harbor (PHX) 4

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

09:50

Phoenix Sky Harbor (PHX) 4

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

09:50

Phoenix Sky Harbor (PHX) 4

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN3391

08:25

Phoenix Sky Harbor (PHX) 4

14:50

Louisville (SDF)

Effective 2025-06-08 through 2025-08-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:25, non-stop
Boeing 737-700 (73W)

Southwest Airlines WN3391

09:35

Denver (DEN)

15:30

Boston Logan (BOS) B

Operates only on 2025-05-25

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:55, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

10:15

Phoenix Sky Harbor (PHX) 4

13:25

San Antonio (SAT) A

Effective 2025-11-08 through 2025-11-15

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

10:15

Phoenix Sky Harbor (PHX) 4

13:25

San Antonio (SAT) A

Effective 2025-12-06 through 2025-12-13

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

10:30

Denver (DEN)

16:30

Boston Logan (BOS) B

Valid until 2025-05-18

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

10:30

Denver (DEN)

16:30

Boston Logan (BOS) B

Operates only on 2025-06-01

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:00, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

10:30

Phoenix Sky Harbor (PHX) 4

13:35

San Antonio (SAT) A

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 2:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

10:30

Phoenix Sky Harbor (PHX) 4

13:35

San Antonio (SAT) A

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

10:30

Phoenix Sky Harbor (PHX) 4

13:35

San Antonio (SAT) A

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 2:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

10:30

Phoenix Sky Harbor (PHX) 4

13:35

San Antonio (SAT) A

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

10:30

Phoenix Sky Harbor (PHX) 4

13:35

San Antonio (SAT) A

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

10:40

San Antonio (SAT) A

11:50

Love Field, Dallas (DAL) 1

Effective 2025-11-04 through 2025-11-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN3391

10:40

San Antonio (SAT) A

11:50

Love Field, Dallas (DAL) 1

Effective 2025-11-17 through 2025-11-20

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN3391

10:40

San Antonio (SAT) A

11:50

Love Field, Dallas (DAL) 1

Effective 2025-12-02 through 2025-12-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Southwest Airlines WN3391

10:40

San Antonio (SAT) A

11:50

Love Field, Dallas (DAL) 1

Effective 2025-12-15 through 2025-12-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN3391

10:40

San Antonio (SAT) A

11:50

Love Field, Dallas (DAL) 1

Effective 2025-12-24 through 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Southwest Airlines WN3391

11:05

Denver (DEN)

17:00

Boston Logan (BOS) B

Valid until 2025-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

11:30

Kansas City (MCI)

12:35

Saint Louis (STL) 2

Effective 2025-11-25 through 2025-12-01

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

11:30

Kansas City (MCI)

12:35

Saint Louis (STL) 2

Effective 2025-12-19 through 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 1:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

11:45

Phoenix Sky Harbor (PHX) 4

14:55

San Antonio (SAT) A

Operates only on 2025-11-30

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Southwest Airlines WN3391

14:15

Kansas City (MCI)

15:20

Saint Louis (STL) 2

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

14:15

Kansas City (MCI)

15:20

Saint Louis (STL) 2

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:05, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

15:00

Boston Logan (BOS) B

16:35

Baltimore (BWI)

Valid until 2025-06-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:35, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

15:35

Denver (DEN)

16:30

Phoenix Sky Harbor (PHX) 4

Effective 2025-08-09 through 2025-09-27

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:55, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

15:50

Denver (DEN)

16:45

Phoenix Sky Harbor (PHX) 4

Effective 2025-08-07 through 2025-09-29

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

15:55

Denver (DEN)

16:50

Phoenix Sky Harbor (PHX) 4

Effective 2025-08-10 through 2025-08-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

15:55

Denver (DEN)

16:50

Phoenix Sky Harbor (PHX) 4

Effective 2025-09-07 through 2025-09-28

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:55, non-stop
Boeing 737 MAX 8 (7M8)

Southwest Airlines WN3391

16:05

Saint Louis (STL) 2

19:45

Miami (MIA)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Southwest Airlines WN3391

16:05

Saint Louis (STL) 2

19:45

Miami (MIA)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Southwest Airlines WN3391

18:25

Denver (DEN)

19:25

Phoenix Sky Harbor (PHX) 4

Effective 2025-08-05 through 2025-10-01

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

21:45

Boston Logan (BOS) B

23:20

Baltimore (BWI)

Valid until 2025-06-02

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:35, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

11:50

Love Field, Dallas (DAL) 1

Effective 2025-11-04 through 2025-11-12

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

11:50

Love Field, Dallas (DAL) 1

Effective 2025-11-17 through 2025-11-20

Mon

Tue

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

11:50

Love Field, Dallas (DAL) 1

Effective 2025-12-02 through 2025-12-11

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

11:50

Love Field, Dallas (DAL) 1

Effective 2025-12-15 through 2025-12-17

Mon

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:00

Phoenix Sky Harbor (PHX) 4

11:50

Love Field, Dallas (DAL) 1

Effective 2025-12-24 through 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 3:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

13:35

San Antonio (SAT) A

Effective 2025-11-02 through 2025-11-16

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 4:05, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

13:35

San Antonio (SAT) A

Effective 2025-11-21 through 2025-11-28

Mon

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 4:05, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

13:35

San Antonio (SAT) A

Effective 2025-12-07 through 2025-12-14

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun

Duration: 4:05, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

13:35

San Antonio (SAT) A

Operates only on 2025-12-18

Mon
-

Tue
-

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 4:05, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

07:30

Los Angeles (LAX) 1

13:35

San Antonio (SAT) A

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 4:05, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

14:15

Kansas City (MCI)

19:45

Miami (MIA)

Effective 2025-11-22 through 2025-11-29

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:30, 1-stop
Boeing 737-800 (73H)

Southwest Airlines WN3391

14:15

Kansas City (MCI)

19:45

Miami (MIA)

Effective 2025-12-20 through 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:30, 1-stop
Boeing 737-800 (73H)

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This flight number is listed as serving the following routes:

Boston Logan (BOS) - Baltimore (BWI)
Denver (DEN) - Boston Logan (BOS)
Denver (DEN) - Phoenix Sky Harbor (PHX)
Kansas City (MCI) - Miami (MIA)
Kansas City (MCI) - Saint Louis (STL)
Los Angeles (LAX) - Phoenix Sky Harbor (PHX)
Los Angeles (LAX) - San Antonio (SAT)
Phoenix Sky Harbor (PHX) - Louisville (SDF)
Phoenix Sky Harbor (PHX) - Love Field, Dallas (DAL)
Phoenix Sky Harbor (PHX) - San Antonio (SAT)
Saint Louis (STL) - Miami (MIA)
San Antonio (SAT) - Love Field, Dallas (DAL)

All Southwest Airlines flights

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