Southwest Airlines flights from San Diego (SAN) to Seattle-Tacoma (SEA).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Mon,Thu,Fri 10:55 San Diego (SAN) 1 14:00 Seattle-Tacoma (SEA)
Southwest Airlines WN 123 Non-stop Boeing 737-700 (Scimitar Winglets) 3:05 Effective 2026-03-05 through 2026-04-06
Mon,Thu,Fri 14:15 San Diego (SAN) 1 17:20 Seattle-Tacoma (SEA)
Southwest Airlines WN 949 Non-stop Boeing 737-800 (73H) 3:05 Effective 2026-04-09 through 2026-06-01
Sat 14:55 San Diego (SAN) 1 17:55 Seattle-Tacoma (SEA)
Southwest Airlines WN 949 Non-stop Boeing 737-800 (73H) 3:00 Effective 2026-04-11 through 2026-05-30
Tue,Wed 15:00 San Diego (SAN) 1 18:00 Seattle-Tacoma (SEA)
Southwest Airlines WN 949 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-04-07 through 2026-06-03
Sun 13:00 San Diego (SAN) 1 16:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 2305 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Effective 2026-04-12 through 2026-05-17
Sun 13:00 San Diego (SAN) 1 16:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 2305 Non-stop Boeing 737 MAX 8 (7M8) 3:05 Operates only on 2026-05-31
Tue,Wed 07:00 San Diego (SAN) 1 10:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 2631 Non-stop Boeing 737-800 (73H) 3:05 Effective 2026-08-04 through 2026-09-30
Mon,Thu,Fri 08:30 San Diego (SAN) 1 11:30 Seattle-Tacoma (SEA)
Southwest Airlines WN 2631 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-08-06 through 2026-09-28
Sun 08:45 San Diego (SAN) 1 11:45 Seattle-Tacoma (SEA)
Southwest Airlines WN 2631 Non-stop Boeing 737-800 (73H) 3:00 Effective 2026-08-09 through 2026-09-27
Sat 09:00 San Diego (SAN) 1 12:00 Seattle-Tacoma (SEA)
Southwest Airlines WN 2631 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-08-08 through 2026-09-26
Sun 15:55 San Diego (SAN) 1 18:55 Seattle-Tacoma (SEA)
Southwest Airlines WN 3991 Non-stop Boeing 737-800 (73H) 3:00 Operates only on 2026-05-24
Tue,Wed,Sun 10:45 San Diego (SAN) 1 13:50 Seattle-Tacoma (SEA)
Southwest Airlines WN 4160 Non-stop Boeing 737-700 (Scimitar Winglets) 3:05 Effective 2026-03-08 through 2026-04-05
Sat 11:05 San Diego (SAN) 1 14:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 4160 Non-stop Boeing 737-700 (Scimitar Winglets) 3:05 Effective 2026-03-07 through 2026-04-04
Sat 16:25 San Diego (SAN) 1 19:20 Seattle-Tacoma (SEA)
Southwest Airlines WN 4310 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-08-08 through 2026-09-26
Mon,Thu,Fri 16:40 San Diego (SAN) 1 19:35 Seattle-Tacoma (SEA)
Southwest Airlines WN 4310 Non-stop Boeing 737-700 (Scimitar Winglets) 2:55 Effective 2026-08-06 through 2026-09-28
Sun 17:15 San Diego (SAN) 1 20:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 4310 Non-stop Boeing 737 MAX 8 (7M8) 2:55 Effective 2026-08-09 through 2026-09-27
Tue,Wed 18:00 San Diego (SAN) 1 21:00 Seattle-Tacoma (SEA)
Southwest Airlines WN 4310 Non-stop Boeing 737 MAX 8 (7M8) 3:00 Effective 2026-08-04 through 2026-09-30
Sun 11:55 San Diego (SAN) 1 14:55 Seattle-Tacoma (SEA)
Southwest Airlines WN 4769 Non-stop Boeing 737-700 (Scimitar Winglets) 3:00 Effective 2026-06-07 through 2026-08-02
Sat 13:35 San Diego (SAN) 1 16:30 Seattle-Tacoma (SEA)
Southwest Airlines WN 4769 Non-stop Boeing 737-800 (73H) 2:55 Effective 2026-06-06 through 2026-08-01
Tue,Wed 13:55 San Diego (SAN) 1 16:50 Seattle-Tacoma (SEA)
Southwest Airlines WN 4769 Non-stop Boeing 737-700 (Scimitar Winglets) 2:55 Effective 2026-06-09 through 2026-07-29
Mon,Thu,Fri 14:00 San Diego (SAN) 1 16:55 Seattle-Tacoma (SEA)
Southwest Airlines WN 4769 Non-stop Boeing 737-800 (73H) 2:55 Effective 2026-06-04 through 2026-08-03
Non-Direct Flights:
Sun 20:30 San Diego (SAN) 1 01:20 Seattle-Tacoma (SEA)
Southwest Airlines WN 186 1-stop Boeing 737-700 (Scimitar Winglets) 4:50 Effective 2026-03-08 through 2026-04-05
The flight arrives 1 day after departure.
Mon-Fri 07:35 San Diego (SAN) 1 12:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 433 1-stop Boeing 737-700 (Scimitar Winglets) 4:35 Effective 2026-01-06 through 2026-01-14
Mon-Fri 07:35 San Diego (SAN) 1 12:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 433 1-stop Boeing 737-700 (Scimitar Winglets) 4:35 Effective 2026-01-21 through 2026-02-04
Tue,Wed,Sun 07:35 San Diego (SAN) 1 12:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 433 1-stop Boeing 737-700 (Scimitar Winglets) 4:35 Effective 2026-02-08 through 2026-02-11
Tue,Wed 07:35 San Diego (SAN) 1 12:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 433 1-stop Boeing 737-700 (Scimitar Winglets) 4:35 Effective 2026-02-18 through 2026-03-04
Sat 08:35 San Diego (SAN) 1 13:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 879 1-stop Boeing 737-700 (Scimitar Winglets) 4:30 Effective 2026-03-07 through 2026-04-04
Wed,Thu 16:10 San Diego (SAN) 1 20:40 Seattle-Tacoma (SEA)
Southwest Airlines WN 1692 1-stop Boeing 737-700 (73W) 4:30 Valid until 2026-01-01
Tue,Wed 14:40 San Diego (SAN) 1 18:50 Seattle-Tacoma (SEA)
Southwest Airlines WN 2328 1-stop Boeing 737 MAX 8 (7M8) 4:10 Effective 2026-06-09 through 2026-07-29
Sat 07:30 San Diego (SAN) 1 12:20 Seattle-Tacoma (SEA)
Southwest Airlines WN 2724 1-stop Boeing 737-700 (Scimitar Winglets) 4:50 Effective 2026-02-14 through 2026-02-28
Mon 18:45 San Diego (SAN) 1 23:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 3279 1-stop Boeing 737-700 (Scimitar Winglets) 4:25 Operates only on 2026-01-05
Sun 16:00 San Diego (SAN) 1 20:10 Seattle-Tacoma (SEA)
Southwest Airlines WN 3518 1-stop Boeing 737-800 (73H) 4:10 Effective 2026-06-07 through 2026-08-02
Sat 18:50 San Diego (SAN) 1 23:55 Seattle-Tacoma (SEA)
Southwest Airlines WN 3957 1-stop Boeing 737-700 (Scimitar Winglets) 5:05 Effective 2026-02-14 through 2026-02-28
Mon 10:00 San Diego (SAN) 1 14:30 Seattle-Tacoma (SEA)
Southwest Airlines WN 4019 1-stop Boeing 737-700 (Scimitar Winglets) 4:30 Operates only on 2026-01-05
Sat 18:45 San Diego (SAN) 1 23:20 Seattle-Tacoma (SEA)
Southwest Airlines WN 4539 1-stop Boeing 737-700 (Scimitar Winglets) 4:35 Operates only on 2026-01-03
Mon-Fri 06:50 San Diego (SAN) 1 12:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 4781 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-01-06 through 2026-01-14
Tue-Fri,Sun 06:50 San Diego (SAN) 1 12:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 4781 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-01-18 through 2026-01-23
Mon-Fri 06:50 San Diego (SAN) 1 12:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 4781 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-01-26 through 2026-02-04
Tue,Wed,Sun 06:50 San Diego (SAN) 1 12:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 4781 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-02-08 through 2026-02-11
Tue,Wed 06:50 San Diego (SAN) 1 12:05 Seattle-Tacoma (SEA)
Southwest Airlines WN 4781 1-stop Boeing 737-700 (Scimitar Winglets) 5:15 Effective 2026-02-18 through 2026-03-04


Southwest Airlines flights from San Diego (SAN) to Seattle-Tacoma (SEA).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:

Effective 2026-03-05 through 2026-04-06
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-04-09 through 2026-06-01
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-04-11 through 2026-05-30
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-04-07 through 2026-06-03
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-04-12 through 2026-05-17
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Operates only on 2026-05-31
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:05, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-08-08 through 2026-09-26
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Operates only on 2026-05-24
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 3:05, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

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:

Effective 2026-08-06 through 2026-09-28
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-08-09 through 2026-09-27
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 2:55, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-08-04 through 2026-09-30
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 3:00, non-stop
Boeing 737 MAX 8 (7M8)

Direct Flights:

Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 3:00, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:55, non-stop
Boeing 737-800 (73H)

Direct Flights:

Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737-700 (Scimitar Winglets)

Direct Flights:

Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 2:55, non-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Effective 2026-03-08 through 2026-04-05
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:50, 1-stop
Boeing 737-700 (Scimitar Winglets)
The flight arrives 1 day after departure.

Non-Direct Flights:

Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-01-21 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 4:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-02-08 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-03-07 through 2026-04-04
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:30, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Valid until 2026-01-01
Mon
-
Tue
-
Wed
Thu
Fri
-
Sat
-
Sun
-
Duration: 4:30, 1-stop
Boeing 737-700 (73W)

Non-Direct Flights:

Effective 2026-06-09 through 2026-07-29
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:10, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:50, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:25, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-06-07 through 2026-08-02
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
Duration: 4:10, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Effective 2026-02-14 through 2026-02-28
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:05, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Operates only on 2026-01-05
Mon
Tue
-
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 4:30, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Operates only on 2026-01-03
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 4:35, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-01-06 through 2026-01-14
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-01-18 through 2026-01-23
Mon
-
Tue
Wed
Thu
Fri
Sat
-
Sun
Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-01-26 through 2026-02-04
Mon
Tue
Wed
Thu
Fri
Sat
-
Sun
-
Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-02-08 through 2026-02-11
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)

Non-Direct Flights:

Effective 2026-02-18 through 2026-03-04
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:15, 1-stop
Boeing 737-700 (Scimitar Winglets)
  • A domestic route departing from the San Diego airport (SAN) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 1051 miles, or 1691 km.
  • The timezone of both the departure and the arrival airports is UTC-8 . Current time at both airports is (loading...).
  • For direct flights, the flight time varies between 2:55 and 3:05.