Southwest Airlines flight WN 4120: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 05:05 Phoenix Sky Harbor (PHX) 4 09:25 Dallas Love Field (DAL) 1
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:20 Effective 2026-03-08 through 2026-04-05
Sat 07:40 Fort Myers (RSW) 09:25 Chicago Midway (MDW)
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:45 Effective 2026-06-06 through 2026-08-01
Sat 08:00 Baltimore (BWI) 10:30 Orlando (MCO)
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Valid until 2026-01-03
Sun 10:05 Dallas Love Field (DAL) 1 11:50 Omaha (OMA)
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-03-08 through 2026-04-05
Tue,Wed 12:20 Omaha (OMA) 15:45 Ronald Reagan Washington (DCA) 1
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-10 through 2026-04-01
Mon,Thu,Fri 12:25 Omaha (OMA) 15:50 Ronald Reagan Washington (DCA) 1
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-05 through 2026-04-06
Sun 12:30 Omaha (OMA) 15:55 Ronald Reagan Washington (DCA) 1
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-03-08 through 2026-04-05
Tue,Wed 14:40 Dallas Love Field (DAL) 1 16:25 Saint Louis (STL) 2
WN 4120 Non-stop Boeing 737-700 (Scimitar Winglets) 1:45 Effective 2026-08-04 through 2026-09-30
Sun 15:00 Phoenix Sky Harbor (PHX) 4 16:15 San Diego (SAN) 1
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 1:15 Operates only on 2026-05-24
Sun 16:20 Dallas Love Field (DAL) 1 18:05 Saint Louis (STL) 2
WN 4120 Non-stop Boeing 737-800 (73H) 1:45 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 17:10 Fort Myers (RSW) 19:05 Chicago Midway (MDW)
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-06-04 through 2026-08-03
Sat 17:15 Dallas Love Field (DAL) 1 19:00 Saint Louis (STL) 2
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 1:45 Effective 2026-08-08 through 2026-09-26
Tue,Wed 18:25 Fort Myers (RSW) 20:15 Chicago Midway (MDW)
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:50 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 18:30 Dallas Love Field (DAL) 1 20:10 Saint Louis (STL) 2
WN 4120 Non-stop Boeing 737-800 (73H) 1:40 Effective 2026-08-06 through 2026-09-28
Sun 19:40 Chicago Midway (MDW) 22:50 New York LaGuardia (LGA) B
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-06-07 through 2026-08-02
Mon,Thu,Fri 19:45 Chicago Midway (MDW) 22:55 New York LaGuardia (LGA) B
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Effective 2026-06-04 through 2026-08-03
Sat 21:40 Las Vegas Harry Reid (LAS) 1 00:05 Spokane (GEG)
WN 4120 Non-stop Boeing 737 MAX 8 (7M8) 2:25 Effective 2026-02-14 through 2026-02-28
The flight arrives 1 day after departure.
Non-Direct Flights:
Sun 05:05 Phoenix Sky Harbor (PHX) 4 11:50 Omaha (OMA)
WN 4120 1-stop Boeing 737 MAX 8 (7M8) 4:45 Effective 2026-03-08 through 2026-04-05
Sun 10:05 Dallas Love Field (DAL) 1 15:55 Ronald Reagan Washington (DCA) 1
WN 4120 1-stop Boeing 737 MAX 8 (7M8) 4:50 Effective 2026-03-08 through 2026-04-05
Mon,Thu,Fri 17:10 Fort Myers (RSW) 22:55 New York LaGuardia (LGA) B
WN 4120 1-stop Boeing 737 MAX 8 (7M8) 5:45 Effective 2026-06-04 through 2026-08-03
Sun 05:05 Phoenix Sky Harbor (PHX) 4 15:55 Ronald Reagan Washington (DCA) 1
WN 4120 2-stop Boeing 737 MAX 8 (7M8) 7:50 Effective 2026-03-08 through 2026-04-05
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4120: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4120
05:05
Phoenix Sky Harbor (PHX) 4

09:25
Dallas Love Field (DAL) 1
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:20, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
07:40
Fort Myers (RSW)

09:25
Chicago Midway (MDW)
Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
08:00
Baltimore (BWI)

10:30
Orlando (MCO)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
10:05
Dallas Love Field (DAL) 1

11:50
Omaha (OMA)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
12:20
Omaha (OMA)

15:45
Ronald Reagan Washington (DCA) 1
Effective 2026-03-10 through 2026-04-01
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
12:25
Omaha (OMA)

15:50
Ronald Reagan Washington (DCA) 1
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)
Direct Flights:
Southwest Airlines WN4120
12:30
Omaha (OMA)

15:55
Ronald Reagan Washington (DCA) 1
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:25, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
14:40
Dallas Love Field (DAL) 1

16:25
Saint Louis (STL) 2
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4120
15:00
Phoenix Sky Harbor (PHX) 4

16:15
San Diego (SAN) 1
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:15, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
16:20
Dallas Love Field (DAL) 1

18:05
Saint Louis (STL) 2
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:45, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4120
17:10
Fort Myers (RSW)

19:05
Chicago Midway (MDW)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
17:15
Dallas Love Field (DAL) 1

19:00
Saint Louis (STL) 2
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:45, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
18:25
Fort Myers (RSW)

20:15
Chicago Midway (MDW)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
18:30
Dallas Love Field (DAL) 1

20:10
Saint Louis (STL) 2
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN4120
19:40
Chicago Midway (MDW)

22:50
New York LaGuardia (LGA) B
Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
19:45
Chicago Midway (MDW)

22:55
New York LaGuardia (LGA) B
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:10, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4120
21:40
Las Vegas Harry Reid (LAS) 1

00:05(+1)
Spokane (GEG)
Effective 2026-02-14 through 2026-02-28
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 WN4120
05:05
Phoenix Sky Harbor (PHX) 4

11:50
Omaha (OMA)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:45, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4120
10:05
Dallas Love Field (DAL) 1

15:55
Ronald Reagan Washington (DCA) 1
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:50, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4120
17:10
Fort Myers (RSW)

22:55
New York LaGuardia (LGA) B
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:45, 1-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4120
05:05
Phoenix Sky Harbor (PHX) 4

15:55
Ronald Reagan Washington (DCA) 1
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 7:50, 2-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Orlando (MCO)
  • Chicago Midway (MDW) - New York LaGuardia (LGA)
  • Dallas Love Field (DAL) - Omaha (OMA)
  • Dallas Love Field (DAL) - Ronald Reagan Washington (DCA)
  • Dallas Love Field (DAL) - Saint Louis (STL)
  • Fort Myers (RSW) - Chicago Midway (MDW)
  • Fort Myers (RSW) - New York LaGuardia (LGA)
  • Las Vegas Harry Reid (LAS) - Spokane (GEG)
  • Omaha (OMA) - Ronald Reagan Washington (DCA)
  • Phoenix Sky Harbor (PHX) - Dallas Love Field (DAL)
  • Phoenix Sky Harbor (PHX) - Omaha (OMA)
  • Phoenix Sky Harbor (PHX) - Ronald Reagan Washington (DCA)
  • Phoenix Sky Harbor (PHX) - San Diego (SAN)
All Southwest Airlines flights
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