Southwest Airlines flight WN 4090: Multiple routes

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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 06:00 San Francisco (SFO) 2 07:30 San Diego (SAN) 1
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-04-09 through 2026-06-01
Sat 06:00 San Francisco (SFO) 2 07:30 San Diego (SAN) 1
WN 4090 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Effective 2026-04-11 through 2026-05-30
Sun 06:05 San Francisco (SFO) 2 07:35 San Diego (SAN) 1
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-04-12 through 2026-05-17
Sun 06:05 San Francisco (SFO) 2 07:35 San Diego (SAN) 1
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Operates only on 2026-05-31
Sun 06:10 San Francisco (SFO) 2 07:40 San Diego (SAN) 1
WN 4090 Non-stop Boeing 737 MAX 8 (7M8) 1:30 Operates only on 2026-05-24
Sat,Sun 06:20 Wichita (ICT) 06:50 Denver (DEN)
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-06-06 through 2026-08-02
Mon,Thu,Fri 06:25 Wichita (ICT) 06:55 Denver (DEN)
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-06-04 through 2026-08-03
Tue,Wed 06:45 Wichita (ICT) 07:15 Denver (DEN)
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-06-09 through 2026-07-29
Tue,Wed 07:45 San Francisco (SFO) 2 09:15 San Diego (SAN) 1
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 1:30 Effective 2026-04-07 through 2026-06-03
Tue,Wed 12:35 Grand Rapids (GRR) 13:20 Denver (DEN)
WN 4090 Non-stop Boeing 737-700 (Scimitar Winglets) 2:45 Effective 2026-08-04 through 2026-09-30
Sat 14:25 Oakland (OAK) 2 16:35 Seattle-Tacoma (SEA)
WN 4090 Non-stop Boeing 737 MAX 8 (7M8) 2:10 Valid until 2026-01-03
Sat 17:10 Grand Rapids (GRR) 18:05 Denver (DEN)
WN 4090 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-08-08 through 2026-09-26
Sat 17:15 Seattle-Tacoma (SEA) 20:45 Denver (DEN)
WN 4090 Non-stop Boeing 737 MAX 8 (7M8) 2:30 Valid until 2026-01-03
Non-Direct Flights:
Sat 14:25 Oakland (OAK) 2 20:45 Denver (DEN)
WN 4090 1-stop Boeing 737 MAX 8 (7M8) 5:20 Valid until 2026-01-03
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This flight number is listed as serving the following routes:


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Southwest Airlines flight WN 4090: Multiple routes
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Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Southwest Airlines WN4090
06:00
San Francisco (SFO) 2

07:30
San Diego (SAN) 1
Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
06:00
San Francisco (SFO) 2

07:30
San Diego (SAN) 1
Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4090
06:05
San Francisco (SFO) 2

07:35
San Diego (SAN) 1
Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
06:05
San Francisco (SFO) 2

07:35
San Diego (SAN) 1
Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
06:10
San Francisco (SFO) 2

07:40
San Diego (SAN) 1
Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 1:30, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4090
06:20
Wichita (ICT)

06:50
Denver (DEN)
Effective 2026-06-06 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
06:25
Wichita (ICT)

06:55
Denver (DEN)
Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
06:45
Wichita (ICT)

07:15
Denver (DEN)
Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
07:45
San Francisco (SFO) 2

09:15
San Diego (SAN) 1
Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 1:30, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
12:35
Grand Rapids (GRR)

13:20
Denver (DEN)
Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:45, non-stop
Boeing 737-700 (Scimitar Winglets)
Direct Flights:
Southwest Airlines WN4090
14:25
Oakland (OAK) 2

16:35
Seattle-Tacoma (SEA)
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 WN4090
17:10
Grand Rapids (GRR)

18:05
Denver (DEN)
Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)
Direct Flights:
Southwest Airlines WN4090
17:15
Seattle-Tacoma (SEA)

20:45
Denver (DEN)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:30, non-stop
Boeing 737 MAX 8 (7M8)
Non-Direct Flights:
Southwest Airlines WN4090
14:25
Oakland (OAK) 2

20:45
Denver (DEN)
Valid until 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:20, 1-stop
Boeing 737 MAX 8 (7M8)
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This flight number is listed as serving the following routes:
  • Grand Rapids (GRR) - Denver (DEN)
  • Oakland (OAK) - Denver (DEN)
  • Oakland (OAK) - Seattle-Tacoma (SEA)
  • San Francisco (SFO) - San Diego (SAN)
  • Seattle-Tacoma (SEA) - Denver (DEN)
  • Wichita (ICT) - Denver (DEN)
All Southwest Airlines flights
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