Southwest Airlines flight WN 4012: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 06:50 San Francisco (SFO) 2 08:20 San Diego (SAN) 1
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-08-10 through 2025-08-24
Sun 06:50 San Francisco (SFO) 2 08:20 San Diego (SAN) 1
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2025-09-07 through 2025-09-28
Tue,Wed 07:25 San Francisco (SFO) 2 08:55 San Diego (SAN) 1
WN 4012 Non-stop Boeing 737-700 (73W) 1:30 Effective 2025-08-05 through 2025-10-01
Sun 07:55 San Francisco (SFO) 2 09:25 San Diego (SAN) 1
WN 4012 Non-stop Boeing 737-700 (73W) 1:30 Operates only on 2025-08-31
Sat 08:05 San Francisco (SFO) 2 09:35 San Diego (SAN) 1
WN 4012 Non-stop Boeing 737-700 (73W) 1:30 Effective 2025-08-09 through 2025-09-27
Sun 09:00 San Diego (SAN) 1 10:25 Las Vegas Harry Reid (LAS) 1
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-08-10 through 2025-08-24
Sun 09:00 San Diego (SAN) 1 10:25 Las Vegas Harry Reid (LAS) 1
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-09-07 through 2025-09-28
Mon,Thu,Fri 09:45 San Francisco (SFO) 2 11:15 San Diego (SAN) 1
WN 4012 Non-stop Boeing 737-700 (73W) 1:30 Effective 2025-08-07 through 2025-09-29
Mon,Thu,Fri 11:50 San Diego (SAN) 1 13:25 Phoenix Sky Harbor (PHX) 4
WN 4012 Non-stop Boeing 737-700 (73W) 1:35 Effective 2025-08-07 through 2025-09-29
Sat 16:55 Ontario, Los Angeles (ONT) 4 18:20 Oakland (OAK) 2
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2025-10-04 through 2025-11-01
Tue,Wed 17:20 New Orleans (MSY) 18:35 Houston Hobby (HOU)
WN 4012 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-06-10 through 2025-07-30
Sat 17:25 Denver (DEN) 20:05 Kansas City (MCI)
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Valid until 2025-05-31
Mon,Thu,Fri 18:15 Denver (DEN) 21:00 Kansas City (MCI)
WN 4012 Non-stop Boeing 737-700 (73W) 1:45 Valid until 2025-06-02
Sun 18:25 Ontario, Los Angeles (ONT) 4 19:45 Oakland (OAK) 2
WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-10-05 through 2025-10-26
Mon,Thu,Fri 18:30 Ontario, Los Angeles (ONT) 4 19:50 Oakland (OAK) 2
WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2025-10-02 through 2025-10-31
Sun 19:05 New Orleans (MSY) 20:20 Houston Hobby (HOU)
WN 4012 Non-stop Boeing 737-700 (73W) 1:15 Effective 2025-06-08 through 2025-08-03
Tue,Wed 19:15 Denver (DEN) 21:55 Kansas City (MCI)
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 1:40 Valid until 2025-06-04
Sat 19:20 Nashville (BNA) 21:30 Love Field, Dallas (DAL) 1
WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2025-11-22 through 2025-11-29
Sat 19:20 Nashville (BNA) 21:30 Love Field, Dallas (DAL) 1
WN 4012 Non-stop Boeing 737-700 (Scimitar Winglets) 2:10 Effective 2025-12-20 through 2026-01-03
Mon-Wed 19:45 Nashville (BNA) 21:55 Love Field, Dallas (DAL) 1
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-11-25 through 2025-12-01
Mon,Tue,Fri,Sun 19:45 Nashville (BNA) 21:55 Love Field, Dallas (DAL) 1
WN 4012 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2025-12-19 through 2026-01-04
Sat 19:50 New Orleans (MSY) 21:05 Houston Hobby (HOU)
WN 4012 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-06-07 through 2025-08-02
Tue,Wed 20:05 Ontario, Los Angeles (ONT) 4 21:25 Oakland (OAK) 2
WN 4012 Non-stop Boeing 737-800 (73H) 1:20 Effective 2025-10-07 through 2025-10-29
Mon,Thu,Fri 20:15 New Orleans (MSY) 21:30 Houston Hobby (HOU)
WN 4012 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-06-05 through 2025-07-03
Mon,Thu,Fri 20:15 New Orleans (MSY) 21:30 Houston Hobby (HOU)
WN 4012 Non-stop Boeing 737-800 (73H) 1:15 Effective 2025-07-07 through 2025-08-04
Sun 20:55 Houston Hobby (HOU) 23:00 Saint Louis (STL) 2
WN 4012 Non-stop Boeing 737-700 (73W) 2:05 Effective 2025-06-08 through 2025-08-03
Mon,Thu,Fri 21:35 Kansas City (MCI) 23:05 Love Field, Dallas (DAL) 1
WN 4012 Non-stop Boeing 737-700 (73W) 1:30 Valid until 2025-06-02
Sun 22:05 Denver (DEN) 00:45 Kansas City (MCI)
WN 4012 Non-stop Boeing 737-700 (73W) 1:40 Valid until 2025-05-18
The flight arrives 1 day after departure.
Sun 22:05 Denver (DEN) 00:45 Kansas City (MCI)
WN 4012 Non-stop Boeing 737-700 (73W) 1:40 Operates only on 2025-06-01
The flight arrives 1 day after departure.
Non-Direct Flights:
Sun 06:50 San Francisco (SFO) 2 10:25 Las Vegas Harry Reid (LAS) 1
WN 4012 1-stop Boeing 737 MAX 8 (7M8) 3:35 Effective 2025-08-10 through 2025-08-24
Sun 06:50 San Francisco (SFO) 2 10:25 Las Vegas Harry Reid (LAS) 1
WN 4012 1-stop Boeing 737 MAX 8 (7M8) 3:35 Effective 2025-09-07 through 2025-09-28
Mon,Thu,Fri 09:45 San Francisco (SFO) 2 13:25 Phoenix Sky Harbor (PHX) 4
WN 4012 1-stop Boeing 737-700 (73W) 3:40 Effective 2025-08-07 through 2025-09-29
Mon,Thu,Fri 18:15 Denver (DEN) 23:05 Love Field, Dallas (DAL) 1
WN 4012 1-stop Boeing 737-700 (73W) 3:50 Valid until 2025-06-02
Sun 19:05 New Orleans (MSY) 23:00 Saint Louis (STL) 2
WN 4012 1-stop Boeing 737-700 (73W) 3:55 Effective 2025-06-08 through 2025-08-03
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4012: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4012
06:50
San Francisco (SFO) 2

08:20
San Diego (SAN) 1
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
06:50
San Francisco (SFO) 2

08:20
San Diego (SAN) 1
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
07:25
San Francisco (SFO) 2

08:55
San Diego (SAN) 1
Effective 2025-08-05 through 2025-10-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
07:55
San Francisco (SFO) 2

09:25
San Diego (SAN) 1
Operates only on 2025-08-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
08:05
San Francisco (SFO) 2

09:35
San Diego (SAN) 1
Effective 2025-08-09 through 2025-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
09:00
San Diego (SAN) 1

10:25
Las Vegas Harry Reid (LAS) 1
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
09:00
San Diego (SAN) 1

10:25
Las Vegas Harry Reid (LAS) 1
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
09:45
San Francisco (SFO) 2

11:15
San Diego (SAN) 1
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
11:50
San Diego (SAN) 1

13:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
16:55
Ontario, Los Angeles (ONT) 4

18:20
Oakland (OAK) 2
Effective 2025-10-04 through 2025-11-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
17:20
New Orleans (MSY)

18:35
Houston Hobby (HOU)
Effective 2025-06-10 through 2025-07-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4012
17:25
Denver (DEN)

20:05
Kansas City (MCI)
Valid until 2025-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
18:15
Denver (DEN)

21:00
Kansas City (MCI)
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
18:25
Ontario, Los Angeles (ONT) 4

19:45
Oakland (OAK) 2
Effective 2025-10-05 through 2025-10-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4012
18:30
Ontario, Los Angeles (ONT) 4

19:50
Oakland (OAK) 2
Effective 2025-10-02 through 2025-10-31
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4012
19:05
New Orleans (MSY)

20:20
Houston Hobby (HOU)
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
19:15
Denver (DEN)

21:55
Kansas City (MCI)
Valid until 2025-06-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
19:20
Nashville (BNA)

21:30
Love Field, Dallas (DAL) 1
Effective 2025-11-22 through 2025-11-29
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4012
19:20
Nashville (BNA)

21:30
Love Field, Dallas (DAL) 1
Effective 2025-12-20 through 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:10, non-stop
Boeing 737-700 (Scimitar Winglets)
Southwest Airlines WN4012
19:45
Nashville (BNA)

21:55
Love Field, Dallas (DAL) 1
Effective 2025-11-25 through 2025-12-01
Mon
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
19:45
Nashville (BNA)

21:55
Love Field, Dallas (DAL) 1
Effective 2025-12-19 through 2026-01-04
Mon
Tue
Wed
-
Thu
-
Fri
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
19:50
New Orleans (MSY)

21:05
Houston Hobby (HOU)
Effective 2025-06-07 through 2025-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4012
20:05
Ontario, Los Angeles (ONT) 4

21:25
Oakland (OAK) 2
Effective 2025-10-07 through 2025-10-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4012
20:15
New Orleans (MSY)

21:30
Houston Hobby (HOU)
Effective 2025-06-05 through 2025-07-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4012
20:15
New Orleans (MSY)

21:30
Houston Hobby (HOU)
Effective 2025-07-07 through 2025-08-04
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:15, non-stop
Boeing 737-800 (73H)
Southwest Airlines WN4012
20:55
Houston Hobby (HOU)

23:00
Saint Louis (STL) 2
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:05, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
21:35
Kansas City (MCI)

23:05
Love Field, Dallas (DAL) 1
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
22:05
Denver (DEN)

00:45(+1)
Kansas City (MCI)
Valid until 2025-05-18
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (73W)
The flight arrives 1 day after departure.
Southwest Airlines WN4012
22:05
Denver (DEN)

00:45(+1)
Kansas City (MCI)
Operates only on 2025-06-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:40, non-stop
Boeing 737-700 (73W)
The flight arrives 1 day after departure.
Non-Direct Flights:
Southwest Airlines WN4012
06:50
San Francisco (SFO) 2

10:25
Las Vegas Harry Reid (LAS) 1
Effective 2025-08-10 through 2025-08-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:35, 1-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
06:50
San Francisco (SFO) 2

10:25
Las Vegas Harry Reid (LAS) 1
Effective 2025-09-07 through 2025-09-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:35, 1-stop
Boeing 737 MAX 8 (7M8)
Southwest Airlines WN4012
09:45
San Francisco (SFO) 2

13:25
Phoenix Sky Harbor (PHX) 4
Effective 2025-08-07 through 2025-09-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:40, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
18:15
Denver (DEN)

23:05
Love Field, Dallas (DAL) 1
Valid until 2025-06-02
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:50, 1-stop
Boeing 737-700 (73W)
Southwest Airlines WN4012
19:05
New Orleans (MSY)

23:00
Saint Louis (STL) 2
Effective 2025-06-08 through 2025-08-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:55, 1-stop
Boeing 737-700 (73W)
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This flight number is listed as serving the following routes:
  • Denver (DEN) - Kansas City (MCI)
  • Denver (DEN) - Love Field, Dallas (DAL)
  • Houston Hobby (HOU) - Saint Louis (STL)
  • Kansas City (MCI) - Love Field, Dallas (DAL)
  • Nashville (BNA) - Love Field, Dallas (DAL)
  • New Orleans (MSY) - Houston Hobby (HOU)
  • New Orleans (MSY) - Saint Louis (STL)
  • Ontario, Los Angeles (ONT) - Oakland (OAK)
  • San Diego (SAN) - Las Vegas Harry Reid (LAS)
  • San Diego (SAN) - Phoenix Sky Harbor (PHX)
  • San Francisco (SFO) - Las Vegas Harry Reid (LAS)
  • San Francisco (SFO) - Phoenix Sky Harbor (PHX)
  • San Francisco (SFO) - San Diego (SAN)
All Southwest Airlines flights
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