Southwest Airlines flight WN 4012: Multiple routes

FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 07:45 Las Vegas Harry Reid (LAS) 1 11:45 Lubbock (LBB) WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 2:00 Effective 2026-04-09 through 2026-06-01
Sat 08:30 Denver (DEN) 10:35 Tucson (TUS) WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Operates only on 2026-03-07
Sat 08:30 Denver (DEN) 09:35 Tucson (TUS) WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-03-14 through 2026-04-04
Sun 08:35 Denver (DEN) 09:40 Tucson (TUS) WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:05 Effective 2026-03-08 through 2026-04-05
Tue,Wed 08:35 Denver (DEN) 09:40 Tucson (TUS) WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 2:05 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 10:00 Denver (DEN) 15:10 Pittsburgh (PIT) WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-06-04 through 2026-08-03
Sat,Sun 10:05 Denver (DEN) 15:15 Pittsburgh (PIT) WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 3:10 Effective 2026-06-06 through 2026-08-02
Sun 10:20 Tucson (TUS) 11:50 Las Vegas Harry Reid (LAS) 1 WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-03-08 through 2026-04-05
Tue,Wed 10:30 Denver (DEN) 15:35 Pittsburgh (PIT) WN 4012 Non-stop Boeing 737-800 (73H) 3:05 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 12:20 Lubbock (LBB) 13:55 Houston Hobby (HOU) WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:35 Effective 2026-04-09 through 2026-06-01
Tue,Wed 13:05 Charleston (CHS) 14:45 Denver (DEN) WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 3:40 Effective 2026-08-04 through 2026-09-30
Mon-Fri 13:50 San Diego (SAN) 1 15:30 San Francisco (SFO) 2 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 13:50 San Diego (SAN) 1 15:30 San Francisco (SFO) 2 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-01-18 through 2026-01-23
Mon 13:50 San Diego (SAN) 1 15:30 San Francisco (SFO) 2 WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Operates only on 2026-01-26
Mon-Fri 13:50 San Diego (SAN) 1 15:30 San Francisco (SFO) 2 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-01-27 through 2026-02-04
Tue,Wed,Sun 13:50 San Diego (SAN) 1 15:30 San Francisco (SFO) 2 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-02-08 through 2026-02-11
Tue,Wed 13:50 San Diego (SAN) 1 15:30 San Francisco (SFO) 2 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:40 Effective 2026-02-18 through 2026-03-04
Sun 14:10 Charleston (CHS) 15:50 Denver (DEN) WN 4012 Non-stop Boeing 737-800 (73H) 3:40 Effective 2026-08-09 through 2026-09-27
Sun 15:50 Los Angeles (LAX) 1 17:05 Las Vegas Harry Reid (LAS) 1 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Effective 2026-04-12 through 2026-05-17
Sun 15:50 Los Angeles (LAX) 1 17:05 Las Vegas Harry Reid (LAS) 1 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:15 Operates only on 2026-05-31
Mon,Thu,Fri 17:20 New Orleans (MSY) 20:50 Ronald Reagan Washington (DCA) 1 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 2:30 Effective 2026-08-06 through 2026-09-28
Sat 19:20 Nashville (BNA) 21:30 Dallas Love Field (DAL) 1 WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Valid until 2026-01-03
Fri 19:45 Nashville (BNA) 21:55 Dallas Love Field (DAL) 1 WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Operates only on 2026-01-02
Mon,Thu,Fri 22:25 Austin (AUS) 00:50 Chicago Midway (MDW) WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-05 through 2026-04-06 The flight arrives 1 day after departure.
Non-Direct Flights:
Mon,Thu,Fri 07:45 Las Vegas Harry Reid (LAS) 1 13:55 Houston Hobby (HOU) WN 4012 1-stop Boeing 737-700 (Scimitar Winglets) 4:10 Effective 2026-04-09 through 2026-06-01
Sun 08:35 Denver (DEN) 11:50 Las Vegas Harry Reid (LAS) 1 WN 4012 1-stop Boeing 737 MAX 8 (7M8) 4:15 Effective 2026-03-08 through 2026-04-05

This flight number is listed as serving the following routes:

Austin (AUS) - Chicago Midway (MDW)
Charleston (CHS) - Denver (DEN)
Denver (DEN) - Las Vegas Harry Reid (LAS)
Denver (DEN) - Pittsburgh (PIT)
Denver (DEN) - Tucson (TUS)
Las Vegas Harry Reid (LAS) - Houston Hobby (HOU)
Las Vegas Harry Reid (LAS) - Lubbock (LBB)
Los Angeles (LAX) - Las Vegas Harry Reid (LAS)
Lubbock (LBB) - Houston Hobby (HOU)
Nashville (BNA) - Dallas Love Field (DAL)
New Orleans (MSY) - Ronald Reagan Washington (DCA)
San Diego (SAN) - San Francisco (SFO)
Tucson (TUS) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

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Southwest Airlines flight WN 4012: Multiple routes

FLIGHT SCHEDULE

Direct Flights:

Southwest Airlines WN4012

07:45

Las Vegas Harry Reid (LAS) 1

11:45

Lubbock (LBB)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4012

08:30

Denver (DEN)

10:35

Tucson (TUS)

Operates only on 2026-03-07

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

08:30

Denver (DEN)

09:35

Tucson (TUS)

Effective 2026-03-14 through 2026-04-04

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

08:35

Denver (DEN)

09:40

Tucson (TUS)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 2:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

08:35

Denver (DEN)

09:40

Tucson (TUS)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4012

10:00

Denver (DEN)

15:10

Pittsburgh (PIT)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

10:05

Denver (DEN)

15:15

Pittsburgh (PIT)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun

Duration: 3:10, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

10:20

Tucson (TUS)

11:50

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

10:30

Denver (DEN)

15:35

Pittsburgh (PIT)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Southwest Airlines WN4012

12:20

Lubbock (LBB)

13:55

Houston Hobby (HOU)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 1:35, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Southwest Airlines WN4012

13:05

Charleston (CHS)

14:45

Denver (DEN)

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

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

Duration: 3:40, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Southwest Airlines WN4012

13:50

San Diego (SAN) 1

15:30

San Francisco (SFO) 2

Effective 2026-01-06 through 2026-01-14

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4012

13:50

San Diego (SAN) 1

15:30

San Francisco (SFO) 2

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

Mon
-

Tue

Wed

Thu

Fri

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4012

13:50

San Diego (SAN) 1

15:30

San Francisco (SFO) 2

Operates only on 2026-01-26

Mon

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4012

13:50

San Diego (SAN) 1

15:30

San Francisco (SFO) 2

Effective 2026-01-27 through 2026-02-04

Mon

Tue

Wed

Thu

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4012

13:50

San Diego (SAN) 1

15:30

San Francisco (SFO) 2

Effective 2026-02-08 through 2026-02-11

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4012

13:50

San Diego (SAN) 1

15:30

San Francisco (SFO) 2

Effective 2026-02-18 through 2026-03-04

Mon
-

Tue

Wed

Thu
-

Fri
-

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4012

14:10

Charleston (CHS)

15:50

Denver (DEN)

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4012

15:50

Los Angeles (LAX) 1

17:05

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4012

15:50

Los Angeles (LAX) 1

17:05

Las Vegas Harry Reid (LAS) 1

Operates only on 2026-05-31

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

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

Direct Flights:

Southwest Airlines WN4012

17:20

New Orleans (MSY)

20:50

Ronald Reagan Washington (DCA) 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 WN4012

19:20

Nashville (BNA)

21:30

Dallas Love Field (DAL) 1

Valid until 2026-01-03

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat

Sun
-

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

Direct Flights:

Southwest Airlines WN4012

19:45

Nashville (BNA)

21:55

Dallas Love Field (DAL) 1

Operates only on 2026-01-02

Mon
-

Tue
-

Wed
-

Thu
-

Fri

Sat
-

Sun
-

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

Direct Flights:

Southwest Airlines WN4012

22:25

Austin (AUS)

00:50(+1)

Chicago Midway (MDW)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.

Non-Direct Flights:

Southwest Airlines WN4012

07:45

Las Vegas Harry Reid (LAS) 1

13:55

Houston Hobby (HOU)

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

Mon

Tue
-

Wed
-

Thu

Fri

Sat
-

Sun
-

Duration: 4:10, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Southwest Airlines WN4012

08:35

Denver (DEN)

11:50

Las Vegas Harry Reid (LAS) 1

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

Mon
-

Tue
-

Wed
-

Thu
-

Fri
-

Sat
-

Sun

Duration: 4:15, 1-stop
Boeing 737 MAX 8 (7M8)

This flight number is listed as serving the following routes:

Austin (AUS) - Chicago Midway (MDW)
Charleston (CHS) - Denver (DEN)
Denver (DEN) - Las Vegas Harry Reid (LAS)
Denver (DEN) - Pittsburgh (PIT)
Denver (DEN) - Tucson (TUS)
Las Vegas Harry Reid (LAS) - Houston Hobby (HOU)
Las Vegas Harry Reid (LAS) - Lubbock (LBB)
Los Angeles (LAX) - Las Vegas Harry Reid (LAS)
Lubbock (LBB) - Houston Hobby (HOU)
Nashville (BNA) - Dallas Love Field (DAL)
New Orleans (MSY) - Ronald Reagan Washington (DCA)
San Diego (SAN) - San Francisco (SFO)
Tucson (TUS) - Las Vegas Harry Reid (LAS)

All Southwest Airlines flights

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