Southwest Airlines flight WN 4377: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 06:15 Sacramento (SMF) B 07:45 Santa Ana (SNA) WN 4377 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-04-09 through 2026-06-01
Mon,Thu,Fri 06:45 San Diego (SAN) 1 08:35 San Francisco (SFO) 2 WN 4377 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-03-05 through 2026-04-06
Wed,Thu 12:05 San Antonio (SAT) A 15:20 Atlanta (ATL) N WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Valid until 2026-01-01
Sat 12:15 Phoenix Sky Harbor (PHX) 4 14:10 Sacramento (SMF) B WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:55 Effective 2026-08-08 through 2026-09-26
Sun 12:55 Phoenix Sky Harbor (PHX) 4 14:50 Sacramento (SMF) B WN 4377 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-08-09 through 2026-09-27
Wed 13:45 Phoenix Sky Harbor (PHX) 4 15:40 Sacramento (SMF) B WN 4377 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-08-05 through 2026-09-30
Thu,Fri,Sun 15:30 Bozeman (BZN) 17:15 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-01-11 through 2026-01-16
Mon,Sun 15:30 Bozeman (BZN) 17:15 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 15:30 Bozeman (BZN) 17:15 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-02-01 through 2026-02-06
Mon,Sun 15:30 Bozeman (BZN) 17:15 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 15:30 Bozeman (BZN) 17:15 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-02-17 through 2026-02-23
Mon 15:30 Bozeman (BZN) 17:15 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Operates only on 2026-03-02
Sat 16:00 Bozeman (BZN) 17:50 Denver (DEN) WN 4377 Non-stop Boeing 737-800 (73H) 1:50 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 17:20 Bozeman (BZN) 19:05 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 17:20 Bozeman (BZN) 19:05 Denver (DEN) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-02-20 through 2026-03-01
Sat 18:25 Indianapolis (IND) 20:10 Austin (AUS) WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Valid until 2026-01-03
Sun 18:45 Albuquerque (ABQ) 19:30 Las Vegas Harry Reid (LAS) 1 WN 4377 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-03-08 through 2026-04-05
Sun 19:40 Orlando (MCO) 22:00 Ronald Reagan Washington (DCA) 1 WN 4377 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-05-24
Tue,Wed 20:00 Las Vegas Harry Reid (LAS) 1 21:15 San Diego (SAN) 1 WN 4377 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-03-10 through 2026-04-01
Sat 20:10 Las Vegas Harry Reid (LAS) 1 21:25 San Diego (SAN) 1 WN 4377 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-03-07 through 2026-04-04
Sun 20:10 Las Vegas Harry Reid (LAS) 1 21:25 San Diego (SAN) 1 WN 4377 Non-stop Boeing 737-800 (73H) 1:15 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 20:35 Ronald Reagan Washington (DCA) 1 22:50 Dallas Love Field (DAL) 1 WN 4377 Non-stop Boeing 737-800 (73H) 3:15 Effective 2026-06-04 through 2026-08-03
Tue,Wed,Sun 20:35 Ronald Reagan Washington (DCA) 1 22:50 Dallas Love Field (DAL) 1 WN 4377 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Effective 2026-06-07 through 2026-08-02
Non-Direct Flights:
Sun 18:45 Albuquerque (ABQ) 21:25 San Diego (SAN) 1 WN 4377 1-stop Boeing 737-800 (73H) 3:40 Effective 2026-03-08 through 2026-04-05

This flight number is listed as serving the following routes:

Albuquerque (ABQ) - Las Vegas Harry Reid (LAS)
Albuquerque (ABQ) - San Diego (SAN)
Bozeman (BZN) - Denver (DEN)
Indianapolis (IND) - Austin (AUS)
Las Vegas Harry Reid (LAS) - San Diego (SAN)
Orlando (MCO) - Ronald Reagan Washington (DCA)
Phoenix Sky Harbor (PHX) - Sacramento (SMF)
Ronald Reagan Washington (DCA) - Dallas Love Field (DAL)
Sacramento (SMF) - Santa Ana (SNA)
San Antonio (SAT) - Atlanta (ATL)
San Diego (SAN) - San Francisco (SFO)

All Southwest Airlines flights

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Southwest Airlines flight WN 4377: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4377

06:15

Sacramento (SMF) B

07:45

Santa Ana (SNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4377

06:45

San Diego (SAN) 1

08:35

San Francisco (SFO) 2

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4377

12:05

San Antonio (SAT) A

15:20

Atlanta (ATL) N

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

12:15

Phoenix Sky Harbor (PHX) 4

14:10

Sacramento (SMF) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN4377

12:55

Phoenix Sky Harbor (PHX) 4

14:50

Sacramento (SMF) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4377

13:45

Phoenix Sky Harbor (PHX) 4

15:40

Sacramento (SMF) B

Effective 2026-08-05 through 2026-09-30

Mon
-

Tue
-

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4377

15:30

Bozeman (BZN)

17:15

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

15:30

Bozeman (BZN)

17:15

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

15:30

Bozeman (BZN)

17:15

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

15:30

Bozeman (BZN)

17:15

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

15:30

Bozeman (BZN)

17:15

Denver (DEN)

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

Mon

Tue

Wed
-

Thu

Fri
-

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

15:30

Bozeman (BZN)

17:15

Denver (DEN)

Operates only on 2026-03-02

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

16:00

Bozeman (BZN)

17:50

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4377

17:20

Bozeman (BZN)

19:05

Denver (DEN)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

17:20

Bozeman (BZN)

19:05

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

18:25

Indianapolis (IND)

20:10

Austin (AUS)

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4377

18:45

Albuquerque (ABQ)

19:30

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4377

19:40

Orlando (MCO)

22:00

Ronald Reagan Washington (DCA) 1

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4377

20:00

Las Vegas Harry Reid (LAS) 1

21:15

San Diego (SAN) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4377

20:10

Las Vegas Harry Reid (LAS) 1

21:25

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN4377

20:10

Las Vegas Harry Reid (LAS) 1

21:25

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4377

20:35

Ronald Reagan Washington (DCA) 1

22:50

Dallas Love Field (DAL) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4377

20:35

Ronald Reagan Washington (DCA) 1

22:50

Dallas Love Field (DAL) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:15, non-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN4377

18:45

Albuquerque (ABQ)

21:25

San Diego (SAN) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:40, 1-stop
Boeing 737-800 (73H)

This flight number is listed as serving the following routes:

Albuquerque (ABQ) - Las Vegas Harry Reid (LAS)
Albuquerque (ABQ) - San Diego (SAN)
Bozeman (BZN) - Denver (DEN)
Indianapolis (IND) - Austin (AUS)
Las Vegas Harry Reid (LAS) - San Diego (SAN)
Orlando (MCO) - Ronald Reagan Washington (DCA)
Phoenix Sky Harbor (PHX) - Sacramento (SMF)
Ronald Reagan Washington (DCA) - Dallas Love Field (DAL)
Sacramento (SMF) - Santa Ana (SNA)
San Antonio (SAT) - Atlanta (ATL)
San Diego (SAN) - San Francisco (SFO)

All Southwest Airlines flights

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