Southwest Airlines flight WN 4127: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 05:00 Ontario, Los Angeles (ONT) 4 10:50 Nashville (BNA) WN 4127 Non-stop Boeing 737-800 (73H) 3:50 Effective 2026-03-05 through 2026-04-06
Sun 05:00 Ontario, Los Angeles (ONT) 4 10:50 Nashville (BNA) WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-03-08 through 2026-04-05
Sat 05:25 Ontario, Los Angeles (ONT) 4 11:10 Nashville (BNA) WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 3:45 Effective 2026-03-07 through 2026-04-04
Sun 07:40 San Diego (SAN) 1 09:20 Sacramento (SMF) B WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Operates only on 2026-05-24
Mon,Thu,Fri 08:00 San Diego (SAN) 1 09:45 Sacramento (SMF) B WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-04-09 through 2026-06-01
Sun 08:05 San Diego (SAN) 1 09:50 Sacramento (SMF) B WN 4127 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-04-12 through 2026-05-17
Sun 08:05 San Diego (SAN) 1 09:50 Sacramento (SMF) B WN 4127 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Operates only on 2026-05-31
Tue,Wed 08:15 San Diego (SAN) 1 10:00 Sacramento (SMF) B WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-04-07 through 2026-06-03
Sun 10:00 Sacramento (SMF) B 15:15 Austin (AUS) WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 3:15 Operates only on 2026-05-24
Mon 10:50 Phoenix Sky Harbor (PHX) 4 12:30 Salt Lake City (SLC) WN 4127 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Operates only on 2026-01-05
Sat 12:15 Chicago Midway (MDW) 13:25 Saint Louis (STL) 2 WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 1:10 Valid until 2026-01-03
Tue,Wed 12:40 Las Vegas Harry Reid (LAS) 1 14:00 Los Angeles (LAX) 1 WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-08-04 through 2026-09-30
Sat 12:40 Las Vegas Harry Reid (LAS) 1 14:00 Los Angeles (LAX) 1 WN 4127 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-08-08 through 2026-09-26
Tue,Wed 12:55 Memphis (MEM) 14:15 Dallas Love Field (DAL) 1 WN 4127 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 14:30 Memphis (MEM) 15:50 Dallas Love Field (DAL) 1 WN 4127 Non-stop Boeing 737-800 (73H) 1:20 Effective 2026-06-04 through 2026-08-03
Sun 15:40 Dallas Love Field (DAL) 1 16:55 Amarillo (AMA) WN 4127 Non-stop Boeing 737-800 (73H) 1:15 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 16:30 Dallas Love Field (DAL) 1 17:45 Amarillo (AMA) WN 4127 Non-stop Boeing 737-800 (73H) 1:15 Effective 2026-06-04 through 2026-08-03
Sat 17:35 Memphis (MEM) 19:00 Dallas Love Field (DAL) 1 WN 4127 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-06-06 through 2026-08-01
Sun 17:35 Amarillo (AMA) 17:45 Las Vegas Harry Reid (LAS) 1 WN 4127 Non-stop Boeing 737-800 (73H) 2:10 Effective 2026-06-07 through 2026-08-02
Sun 17:35 San Jose (SJC) B 19:20 Portland (PDX) WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-08-09 through 2026-09-27
Mon,Tue,Fri,Sun 18:45 Saint Louis (STL) 2 20:05 Denver (DEN) WN 4127 Non-stop Boeing 737-800 (73H) 2:20 Valid until 2026-01-04
Mon,Thu,Fri 19:35 Las Vegas Harry Reid (LAS) 1 20:50 Los Angeles (LAX) 1 WN 4127 Non-stop Boeing 737-800 (73H) 1:15 Effective 2026-08-06 through 2026-09-28
Sat 19:40 Dallas Love Field (DAL) 1 20:35 Colorado Springs (COS) WN 4127 Non-stop Boeing 737-800 (73H) 1:55 Effective 2026-06-06 through 2026-08-01
Wed,Thu 20:45 Phoenix Sky Harbor (PHX) 4 22:20 Salt Lake City (SLC) WN 4127 Non-stop Boeing 737 MAX 8 (7M8) 1:35 Valid until 2026-01-01
Non-Direct Flights:
Sun 07:40 San Diego (SAN) 1 15:15 Austin (AUS) WN 4127 1-stop Boeing 737 MAX 8 (7M8) 5:35 Operates only on 2026-05-24
Mon,Thu,Fri 14:30 Memphis (MEM) 17:45 Amarillo (AMA) WN 4127 1-stop Boeing 737-800 (73H) 3:15 Effective 2026-06-04 through 2026-08-03
Sun 15:40 Dallas Love Field (DAL) 1 17:45 Las Vegas Harry Reid (LAS) 1 WN 4127 1-stop Boeing 737-800 (73H) 4:05 Effective 2026-06-07 through 2026-08-02
Sat 17:35 Memphis (MEM) 20:35 Colorado Springs (COS) WN 4127 1-stop Boeing 737-800 (73H) 4:00 Effective 2026-06-06 through 2026-08-01

This flight number is listed as serving the following routes:

Amarillo (AMA) - Las Vegas Harry Reid (LAS)
Chicago Midway (MDW) - Saint Louis (STL)
Dallas Love Field (DAL) - Amarillo (AMA)
Dallas Love Field (DAL) - Colorado Springs (COS)
Dallas Love Field (DAL) - Las Vegas Harry Reid (LAS)
Las Vegas Harry Reid (LAS) - Los Angeles (LAX)
Memphis (MEM) - Amarillo (AMA)
Memphis (MEM) - Colorado Springs (COS)
Memphis (MEM) - Dallas Love Field (DAL)
Ontario, Los Angeles (ONT) - Nashville (BNA)
Phoenix Sky Harbor (PHX) - Salt Lake City (SLC)
Sacramento (SMF) - Austin (AUS)
Saint Louis (STL) - Denver (DEN)
San Diego (SAN) - Austin (AUS)
San Diego (SAN) - Sacramento (SMF)
San Jose (SJC) - Portland (PDX)

All Southwest Airlines flights

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Southwest Airlines flight WN 4127: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4127

05:00

Ontario, Los Angeles (ONT) 4

10:50

Nashville (BNA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:50, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4127

05:00

Ontario, Los Angeles (ONT) 4

10:50

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4127

05:25

Ontario, Los Angeles (ONT) 4

11:10

Nashville (BNA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 3:45, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4127

07:40

San Diego (SAN) 1

09:20

Sacramento (SMF) B

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4127

08:00

San Diego (SAN) 1

09:45

Sacramento (SMF) B

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

08:05

San Diego (SAN) 1

09:50

Sacramento (SMF) B

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4127

08:05

San Diego (SAN) 1

09:50

Sacramento (SMF) B

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4127

08:15

San Diego (SAN) 1

10:00

Sacramento (SMF) B

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

10:00

Sacramento (SMF) B

15:15

Austin (AUS)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4127

10:50

Phoenix Sky Harbor (PHX) 4

12:30

Salt Lake City (SLC)

Operates only on 2026-01-05

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:40, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4127

12:15

Chicago Midway (MDW)

13:25

Saint Louis (STL) 2

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 1:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4127

12:40

Las Vegas Harry Reid (LAS) 1

14:00

Los Angeles (LAX) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4127

12:40

Las Vegas Harry Reid (LAS) 1

14:00

Los Angeles (LAX) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

12:55

Memphis (MEM)

14:15

Dallas Love Field (DAL) 1

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

14:30

Memphis (MEM)

15:50

Dallas Love Field (DAL) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

15:40

Dallas Love Field (DAL) 1

16:55

Amarillo (AMA)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4127

16:30

Dallas Love Field (DAL) 1

17:45

Amarillo (AMA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

17:35

Memphis (MEM)

19:00

Dallas Love Field (DAL) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

17:35

Amarillo (AMA)

17:45

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:10, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4127

17:35

San Jose (SJC) B

19:20

Portland (PDX)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4127

18:45

Saint Louis (STL) 2

20:05

Denver (DEN)

Valid until 2026-01-04

Mon

Tue

Wed
-

Thu
-

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4127

19:35

Las Vegas Harry Reid (LAS) 1

20:50

Los Angeles (LAX) 1

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

19:40

Dallas Love Field (DAL) 1

20:35

Colorado Springs (COS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN4127

20:45

Phoenix Sky Harbor (PHX) 4

22:20

Salt Lake City (SLC)

Valid until 2026-01-01

Mon
-

Tue
-

Wed

Thu

Fri
-

Sat
-

Sun
-

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

Non-Direct Flights:

Southwest Airlines WN4127

07:40

San Diego (SAN) 1

15:15

Austin (AUS)

Operates only on 2026-05-24

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 5:35, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Southwest Airlines WN4127

14:30

Memphis (MEM)

17:45

Amarillo (AMA)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:15, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Southwest Airlines WN4127

15:40

Dallas Love Field (DAL) 1

17:45

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Non-Direct Flights:

Southwest Airlines WN4127

17:35

Memphis (MEM)

20:35

Colorado Springs (COS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 4:00, 1-stop
Boeing 737-800 (73H)

This flight number is listed as serving the following routes:

Amarillo (AMA) - Las Vegas Harry Reid (LAS)
Chicago Midway (MDW) - Saint Louis (STL)
Dallas Love Field (DAL) - Amarillo (AMA)
Dallas Love Field (DAL) - Colorado Springs (COS)
Dallas Love Field (DAL) - Las Vegas Harry Reid (LAS)
Las Vegas Harry Reid (LAS) - Los Angeles (LAX)
Memphis (MEM) - Amarillo (AMA)
Memphis (MEM) - Colorado Springs (COS)
Memphis (MEM) - Dallas Love Field (DAL)
Ontario, Los Angeles (ONT) - Nashville (BNA)
Phoenix Sky Harbor (PHX) - Salt Lake City (SLC)
Sacramento (SMF) - Austin (AUS)
Saint Louis (STL) - Denver (DEN)
San Diego (SAN) - Austin (AUS)
San Diego (SAN) - Sacramento (SMF)
San Jose (SJC) - Portland (PDX)

All Southwest Airlines flights

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