Southwest Airlines flights from San Antonio (SAT) to Seattle-Tacoma (SEA).

Select flight date:
FLIGHT SCHEDULE
Non-Direct Flights:
Mon,Thu,Fri 20:35 San Antonio (SAT) A 00:50 Seattle-Tacoma (SEA)
Southwest Airlines WN 412 1-stop Boeing 737-800 (73H) 6:15 Effective 2026-06-04 through 2026-08-03
The flight arrives 1 day after departure.
Mon,Thu,Fri 12:50 San Antonio (SAT) A 17:25 Seattle-Tacoma (SEA)
Southwest Airlines WN 3566 1-stop Boeing 737-800 (73H) 6:35 Effective 2026-06-04 through 2026-08-03
Mon,Thu,Fri 17:35 San Antonio (SAT) A 21:30 Seattle-Tacoma (SEA)
Southwest Airlines WN 3585 1-stop Boeing 737 MAX 8 (7M8) 5:55 Effective 2026-06-04 through 2026-08-03
Sat 09:20 San Antonio (SAT) A 13:15 Seattle-Tacoma (SEA)
Southwest Airlines WN 4130 1-stop Boeing 737-800 (73H) 5:55 Effective 2026-06-06 through 2026-08-01


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

Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:15, 1-stop
Boeing 737-800 (73H)
The flight arrives 1 day after departure.

Non-Direct Flights:

Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 6:35, 1-stop
Boeing 737-800 (73H)

Non-Direct Flights:

Effective 2026-06-04 through 2026-08-03
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
-
Duration: 5:55, 1-stop
Boeing 737 MAX 8 (7M8)

Non-Direct Flights:

Effective 2026-06-06 through 2026-08-01
Mon
-
Tue
-
Wed
-
Thu
-
Fri
-
Sat
Sun
-
Duration: 5:55, 1-stop
Boeing 737-800 (73H)
  • A domestic route departing from the San Antonio airport (SAT) and arriving at Seattle-Tacoma airport (SEA).
  • The flight distance is 1772 miles, or 2853 km.
  • The timezone of the departure airport is UTC-6 , and the timezone of the arrival airport is UTC-8 . Current time at the point of departure is (loading...), and (loading...) at the point of arrival. There is a (loading...) hour time difference between the airports.