Southwest Airlines flight WN 3404: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Sun 06:20 San Diego (SAN) 1 14:25 Baltimore (BWI)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 5:05 Effective 2026-08-09 through 2026-09-27
Mon,Thu,Fri 06:35 San Diego (SAN) 1 14:40 Baltimore (BWI)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 5:05 Effective 2026-08-06 through 2026-09-28
Tue,Wed 07:10 San Diego (SAN) 1 15:15 Baltimore (BWI)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 5:05 Effective 2026-08-04 through 2026-09-30
Sat 07:35 San Diego (SAN) 1 15:35 Baltimore (BWI)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 5:00 Effective 2026-08-08 through 2026-09-26
Mon 08:00 San Jose (SJC) B 10:20 Seattle-Tacoma (SEA)
WN 3404 Non-stop Boeing 737-700 (Scimitar Winglets) 2:20 Operates only on 2026-01-05
Mon,Thu,Fri 11:40 Chicago Midway (MDW) 13:20 Denver (DEN)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Effective 2026-04-09 through 2026-06-01
Sun 11:50 Chicago Midway (MDW) 13:30 Denver (DEN)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 2:40 Operates only on 2026-05-24
Sun 12:20 Chicago Midway (MDW) 13:55 Denver (DEN)
WN 3404 Non-stop Boeing 737-800 (73H) 2:35 Effective 2026-04-12 through 2026-05-17
Sun 12:20 Chicago Midway (MDW) 13:55 Denver (DEN)
WN 3404 Non-stop Boeing 737-800 (73H) 2:35 Operates only on 2026-05-31
Tue,Wed 12:35 Chicago Midway (MDW) 14:10 Denver (DEN)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 2:35 Effective 2026-04-07 through 2026-06-03
Sat 13:55 Chicago Midway (MDW) 15:35 Denver (DEN)
WN 3404 Non-stop Boeing 737-800 (73H) 2:40 Effective 2026-04-11 through 2026-05-30
Wed,Thu 17:30 San Jose (SJC) B 19:45 Seattle-Tacoma (SEA)
WN 3404 Non-stop Boeing 737-700 (73W) 2:15 Valid until 2026-01-01
Sun 17:40 Baltimore (BWI) 19:30 Indianapolis (IND)
WN 3404 Non-stop Boeing 737-700 (Scimitar Winglets) 1:50 Effective 2026-03-08 through 2026-04-05
Sat 17:55 San Diego (SAN) 1 23:45 Chicago Midway (MDW)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-02-14 through 2026-02-28
Mon,Thu,Fri 18:45 San Diego (SAN) 1 00:35 Chicago Midway (MDW)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-02-12 through 2026-02-16
The flight arrives 1 day after departure.
Thu,Fri,Sun 18:45 San Diego (SAN) 1 00:35 Chicago Midway (MDW)
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 3:50 Effective 2026-02-20 through 2026-03-01
The flight arrives 1 day after departure.
Tue,Wed 20:45 San Diego (SAN) 1 22:15 Phoenix Sky Harbor (PHX) 4
WN 3404 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-06-09 through 2026-07-29
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 3404: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN3404
06:20
San Diego (SAN) 1

14:25
Baltimore (BWI)
Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
06:35
San Diego (SAN) 1

14:40
Baltimore (BWI)
Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
07:10
San Diego (SAN) 1

15:15
Baltimore (BWI)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:05, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
07:35
San Diego (SAN) 1

15:35
Baltimore (BWI)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:00, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
08:00
San Jose (SJC) B

10:20
Seattle-Tacoma (SEA)
Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:20, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3404
11:40
Chicago Midway (MDW)

13:20
Denver (DEN)
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
11:50
Chicago Midway (MDW)

13:30
Denver (DEN)
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:40, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
12:20
Chicago Midway (MDW)

13:55
Denver (DEN)
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3404
12:20
Chicago Midway (MDW)

13:55
Denver (DEN)
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:35, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3404
12:35
Chicago Midway (MDW)

14:10
Denver (DEN)
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:35, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
13:55
Chicago Midway (MDW)

15:35
Denver (DEN)
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:40, non-stop
Boeing 737-800 (73H)
Direct Flights:
Southwest Airlines WN3404
17:30
San Jose (SJC) B

19:45
Seattle-Tacoma (SEA)
Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:15, non-stop
Boeing 737-700 (73W)
Direct Flights:
Southwest Airlines WN3404
17:40
Baltimore (BWI)

19:30
Indianapolis (IND)
Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:50, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN3404
17:55
San Diego (SAN) 1

23:45
Chicago Midway (MDW)
Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN3404
18:45
San Diego (SAN) 1

00:35(+1)
Chicago Midway (MDW)
Effective 2026-02-12 through 2026-02-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3404
18:45
San Diego (SAN) 1

00:35(+1)
Chicago Midway (MDW)
Effective 2026-02-20 through 2026-03-01
Mon
-
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 3:50, non-stop
Boeing 737 MAX 8 (7M8)
The flight arrives 1 day after departure.
Direct Flights:
Southwest Airlines WN3404
20:45
San Diego (SAN) 1

22:15
Phoenix Sky Harbor (PHX) 4
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
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Parallax here -
This flight number is listed as serving the following routes:
  • Baltimore (BWI) - Indianapolis (IND)
  • Chicago Midway (MDW) - Denver (DEN)
  • San Diego (SAN) - Baltimore (BWI)
  • San Diego (SAN) - Chicago Midway (MDW)
  • San Diego (SAN) - Phoenix Sky Harbor (PHX)
  • San Jose (SJC) - Seattle-Tacoma (SEA)
All Southwest Airlines flights
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