Southwest Airlines flight WN 4278: Multiple routes

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 12:20 Sacramento (SMF) B 13:50 Las Vegas Harry Reid (LAS) 1
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-06-04 through 2026-08-03
Sat 12:30 Baltimore (BWI) 17:30 Luis Munoz Marin, San Juan (SJU) B
WN 4278 Non-stop Boeing 737-800 (73H) 4:00 Valid until 2026-01-03
Sat 15:25 Islip (ISP) 18:25 Orlando (MCO)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 16:05 Phoenix Sky Harbor (PHX) 4 17:30 Los Angeles (LAX) 1
WN 4278 Non-stop Boeing 737-800 (73H) 1:25 Effective 2026-08-06 through 2026-09-28
Wed 17:25 Omaha (OMA) 19:40 Houston Hobby (HOU)
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 2:15 Effective 2026-08-05 through 2026-09-30
Mon,Thu,Fri 18:50 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:05 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 18:50 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:05 Effective 2026-02-20 through 2026-03-01
Thu,Fri,Sun 18:55 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-01-11 through 2026-01-16
Mon,Sun 18:55 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-01-19 through 2026-01-25
Thu,Fri,Sun 18:55 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-02-01 through 2026-02-06
Mon,Sun 18:55 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-02-09 through 2026-02-15
Mon,Tue,Thu 18:55 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-02-17 through 2026-02-23
Mon 18:55 Orlando (MCO) 20:55 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Operates only on 2026-03-02
Mon-Fri 19:00 Orlando (MCO) 21:00 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-01-06 through 2026-01-14
Tue-Thu,Sun 19:00 Orlando (MCO) 21:00 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-01-18 through 2026-01-22
Fri 19:00 Orlando (MCO) 21:00 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Operates only on 2026-01-23
Mon-Fri 19:00 Orlando (MCO) 21:00 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-01-26 through 2026-02-04
Sat 19:00 Orlando (MCO) 21:00 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-02-14 through 2026-02-28
Tue,Wed 19:05 Orlando (MCO) 21:05 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-02-10 through 2026-02-11
Tue,Wed 19:05 Orlando (MCO) 21:05 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-02-18 through 2026-03-04
Tue,Wed 19:05 Orlando (MCO) 21:30 John Glenn Columbus (CMH)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 2:25 Effective 2026-03-10 through 2026-04-01
Sat 19:10 Orlando (MCO) 21:10 Dallas Love Field (DAL) 1
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-01-10 through 2026-02-07
Thu 19:25 Oakland (OAK) 2 21:00 Las Vegas Harry Reid (LAS) 1
WN 4278 Non-stop Boeing 737-800 (73H) 1:35 Operates only on 2026-03-05
Mon,Thu,Fri 19:55 San Jose (SJC) B 21:15 Santa Ana (SNA)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-04-09 through 2026-05-22
Mon,Thu,Fri,Sun 19:55 San Jose (SJC) B 21:15 Santa Ana (SNA)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-05-24 through 2026-05-29
Mon 19:55 San Jose (SJC) B 21:15 Santa Ana (SNA)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Operates only on 2026-06-01
Tue 19:55 Phoenix Sky Harbor (PHX) 4 21:20 Los Angeles (LAX) 1
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 1:25 Effective 2026-08-04 through 2026-09-29
Tue,Wed 20:05 San Jose (SJC) B 21:25 Santa Ana (SNA)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:20 Effective 2026-04-07 through 2026-06-03
Sun 20:45 San Jose (SJC) B 22:10 Santa Ana (SNA)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Effective 2026-04-12 through 2026-05-17
Sun 20:45 San Jose (SJC) B 22:10 Santa Ana (SNA)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:25 Operates only on 2026-05-31
Sun 21:15 Phoenix Sky Harbor (PHX) 4 22:35 Los Angeles (LAX) 1
WN 4278 Non-stop Boeing 737 MAX 8 (7M8) 1:20 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 21:30 Dallas Love Field (DAL) 1 22:25 Albuquerque (ABQ)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 21:30 Dallas Love Field (DAL) 1 22:25 Albuquerque (ABQ)
WN 4278 Non-stop Boeing 737-700 (Scimitar Winglets) 1:55 Effective 2026-02-20 through 2026-03-01
Non-Direct Flights:
Sat 15:25 Islip (ISP) 21:00 Dallas Love Field (DAL) 1
WN 4278 1-stop Boeing 737-700 (Scimitar Winglets) 6:35 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 18:50 Orlando (MCO) 22:25 Albuquerque (ABQ)
WN 4278 1-stop Boeing 737-700 (Scimitar Winglets) 5:35 Effective 2026-02-12 through 2026-02-16
Thu,Fri,Sun 18:50 Orlando (MCO) 22:25 Albuquerque (ABQ)
WN 4278 1-stop Boeing 737-700 (Scimitar Winglets) 5:35 Effective 2026-02-20 through 2026-03-01
This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4278: Multiple routes
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4278
12:20
Sacramento (SMF) B

13:50
Las Vegas Harry Reid (LAS) 1
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
12:30
Baltimore (BWI)

17:30
Luis Munoz Marin, San Juan (SJU) B
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4278
15:25
Islip (ISP)

18:25
Orlando (MCO)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
16:05
Phoenix Sky Harbor (PHX) 4

17:30
Los Angeles (LAX) 1
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4278
17:25
Omaha (OMA)

19:40
Houston Hobby (HOU)
Effective 2026-08-05 through 2026-09-30
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
18:50
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
18:50
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
18:55
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Effective 2026-01-11 through 2026-01-16
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
18:55
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Effective 2026-01-19 through 2026-01-25
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
18:55
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Effective 2026-02-01 through 2026-02-06
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
18:55
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Effective 2026-02-09 through 2026-02-15
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
18:55
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Effective 2026-02-17 through 2026-02-23
Mon
Tue
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
18:55
Orlando (MCO)

20:55
Dallas Love Field (DAL) 1
Operates only on 2026-03-02
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:00
Orlando (MCO)

21:00
Dallas Love Field (DAL) 1
Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
19:00
Orlando (MCO)

21:00
Dallas Love Field (DAL) 1
Effective 2026-01-18 through 2026-01-22
Mon
-
Tue
Wed
Thu
Fri
-
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
19:00
Orlando (MCO)

21:00
Dallas Love Field (DAL) 1
Operates only on 2026-01-23
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:00
Orlando (MCO)

21:00
Dallas Love Field (DAL) 1
Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
19:00
Orlando (MCO)

21:00
Dallas Love Field (DAL) 1
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:05
Orlando (MCO)

21:05
Dallas Love Field (DAL) 1
Effective 2026-02-10 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:05
Orlando (MCO)

21:05
Dallas Love Field (DAL) 1
Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:05
Orlando (MCO)

21:30
John Glenn Columbus (CMH)
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:10
Orlando (MCO)

21:10
Dallas Love Field (DAL) 1
Effective 2026-01-10 through 2026-02-07
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
19:25
Oakland (OAK) 2

21:00
Las Vegas Harry Reid (LAS) 1
Operates only on 2026-03-05
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 1:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4278
19:55
San Jose (SJC) B

21:15
Santa Ana (SNA)
Effective 2026-04-09 through 2026-05-22
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:55
San Jose (SJC) B

21:15
Santa Ana (SNA)
Effective 2026-05-24 through 2026-05-29
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:55
San Jose (SJC) B

21:15
Santa Ana (SNA)
Operates only on 2026-06-01
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
19:55
Phoenix Sky Harbor (PHX) 4

21:20
Los Angeles (LAX) 1
Effective 2026-08-04 through 2026-09-29
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
20:05
San Jose (SJC) B

21:25
Santa Ana (SNA)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
20:45
San Jose (SJC) B

22:10
Santa Ana (SNA)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
20:45
San Jose (SJC) B

22:10
Santa Ana (SNA)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:25, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
21:15
Phoenix Sky Harbor (PHX) 4

22:35
Los Angeles (LAX) 1
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4278
21:30
Dallas Love Field (DAL) 1

22:25
Albuquerque (ABQ)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4278
21:30
Dallas Love Field (DAL) 1

22:25
Albuquerque (ABQ)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 1:55, non-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4278
15:25
Islip (ISP)

21:00
Dallas Love Field (DAL) 1
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 6:35, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4278
18:50
Orlando (MCO)

22:25
Albuquerque (ABQ)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:35, 1-stop
Boeing 737-700 (Scimitar Winglets)
Non-Direct Flights:
Southwest Airlines WN4278
18:50
Orlando (MCO)

22:25
Albuquerque (ABQ)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 5:35, 1-stop
Boeing 737-700 (Scimitar Winglets)
This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Luis Munoz Marin, San Juan (SJU)
  • Dallas Love Field (DAL) - Albuquerque (ABQ)
  • Islip (ISP) - Dallas Love Field (DAL)
  • Islip (ISP) - Orlando (MCO)
  • Oakland (OAK) - Las Vegas Harry Reid (LAS)
  • Omaha (OMA) - Houston Hobby (HOU)
  • Orlando (MCO) - Albuquerque (ABQ)
  • Orlando (MCO) - Dallas Love Field (DAL)
  • Orlando (MCO) - John Glenn Columbus (CMH)
  • Phoenix Sky Harbor (PHX) - Los Angeles (LAX)
  • Sacramento (SMF) - Las Vegas Harry Reid (LAS)
  • San Jose (SJC) - Santa Ana (SNA)
All Southwest Airlines flights
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