Alaska Airlines flights from Seattle-Tacoma (SEA) to Santa Rosa (STS).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 11:20 Seattle-Tacoma (SEA) 13:28 Santa Rosa (STS)
Alaska Airlines AS 427 Non-stop Boeing 737-800 (73H) 2:08 Effective from 2026-08-19
Wed 19:55 Seattle-Tacoma (SEA) 21:58 Santa Rosa (STS)
Alaska Airlines AS 693 Non-stop Boeing 737-800 (73H) 2:03 Operates only on 2026-03-18
Mon,Thu,Fri,Sun 21:59 Seattle-Tacoma (SEA) 23:59 Santa Rosa (STS)
Alaska Airlines AS 792 Non-stop Boeing 737-800 (73H) 2:00 Effective 2026-01-08 through 2026-02-09
Mon-Wed,Fri-Sun 11:25 Seattle-Tacoma (SEA) 13:32 Santa Rosa (STS)
Alaska Airlines AS 1321 Non-stop Boeing 737-800 (73H) 2:07 Valid until 2026-01-06
Thu 11:25 Seattle-Tacoma (SEA) 13:32 Santa Rosa (STS)
Alaska Airlines AS 1321 Non-stop Boeing 737-700 (73G) 2:07 Operates only on 2026-01-01
Wed 11:45 Seattle-Tacoma (SEA) 13:48 Santa Rosa (STS)
Alaska Airlines AS 1321 Non-stop Boeing 737-800 (73H) 2:03 Operates only on 2026-03-18
Daily 12:17 Seattle-Tacoma (SEA) 14:20 Santa Rosa (STS)
Alaska Airlines AS 1321 Non-stop Boeing 737-800 (73H) 2:03 Effective 2026-03-19 through 2026-05-12
Daily 17:08 Seattle-Tacoma (SEA) 19:07 Santa Rosa (STS)
Alaska Airlines AS 1321 Non-stop Boeing 737-800 (73H) 1:59 Effective 2026-05-13 through 2026-06-09
Daily 17:08 Seattle-Tacoma (SEA) 19:10 Santa Rosa (STS)
Alaska Airlines AS 1321 Non-stop Boeing 737-800 (73H) 2:02 Effective 2026-06-10 through 2026-10-02
Tue,Wed,Sat 19:50 Seattle-Tacoma (SEA) 21:52 Santa Rosa (STS)
Alaska Airlines AS 2068 Non-stop Embraer EMB 175 (E75) 2:02 Effective 2026-02-14 through 2026-03-17
Mon,Thu,Fri,Sun 21:48 Seattle-Tacoma (SEA) 23:50 Santa Rosa (STS)
Alaska Airlines AS 2068 Non-stop Embraer EMB 175 (E75) 2:02 Effective 2026-02-12 through 2026-03-16
Daily 17:08 Seattle-Tacoma (SEA) 19:10 Santa Rosa (STS)
Alaska Airlines AS 2139 Non-stop Embraer EMB 175 (E75) 2:02 Effective from 2026-10-03
Daily 19:55 Seattle-Tacoma (SEA) 21:51 Santa Rosa (STS)
Alaska Airlines AS 2142 Non-stop Embraer EMB 175 (E75) 1:56 Effective 2026-03-19 through 2026-05-12
Daily 08:30 Seattle-Tacoma (SEA) 10:32 Santa Rosa (STS)
Alaska Airlines AS 2344 Non-stop Embraer EMB 175 (E75) 2:02 Effective 2026-02-12 through 2026-03-17
Daily 08:35 Seattle-Tacoma (SEA) 10:35 Santa Rosa (STS)
Alaska Airlines AS 2344 Non-stop Embraer EMB 175 (E75) 2:00 Effective 2026-01-07 through 2026-02-11
Daily 20:09 Seattle-Tacoma (SEA) 22:17 Santa Rosa (STS)
Alaska Airlines AS 2431 Non-stop Embraer EMB 175 (E75) 2:08 Valid until 2026-01-05
Daily 11:20 Seattle-Tacoma (SEA) 13:25 Santa Rosa (STS)
Alaska Airlines AS 3380 Non-stop Embraer EMB 175 (E75) 2:05 Effective 2026-05-13 through 2026-06-09
Daily 11:20 Seattle-Tacoma (SEA) 13:28 Santa Rosa (STS)
Alaska Airlines AS 3411 Non-stop Embraer EMB 175 (E75) 2:08 Effective 2026-06-10 through 2026-08-18




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Alaska Airlines flights from Seattle-Tacoma (SEA) to Santa Rosa (STS).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS427
11:20
Seattle-Tacoma (SEA)

13:28
Santa Rosa (STS)
Effective from 2026-08-19
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS693
19:55
Seattle-Tacoma (SEA)

21:58
Santa Rosa (STS)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:03, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS792
21:59
Seattle-Tacoma (SEA)

23:59
Santa Rosa (STS)
Effective 2026-01-08 through 2026-02-09
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:00, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS1321
11:25
Seattle-Tacoma (SEA)

13:32
Santa Rosa (STS)
Valid until 2026-01-06
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Duration: 2:07, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS1321
11:25
Seattle-Tacoma (SEA)

13:32
Santa Rosa (STS)
Operates only on 2026-01-01
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 2:07, non-stop
Boeing 737-700 (73G)
Direct Flights:
Alaska Airlines AS1321
11:45
Seattle-Tacoma (SEA)

13:48
Santa Rosa (STS)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 2:03, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS1321
12:17
Seattle-Tacoma (SEA)

14:20
Santa Rosa (STS)
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:03, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS1321
17:08
Seattle-Tacoma (SEA)

19:07
Santa Rosa (STS)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:59, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS1321
17:08
Seattle-Tacoma (SEA)

19:10
Santa Rosa (STS)
Effective 2026-06-10 through 2026-10-02
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Boeing 737-800 (73H)
Direct Flights:
Alaska Airlines AS2068
19:50
Seattle-Tacoma (SEA)

21:52
Santa Rosa (STS)
Effective 2026-02-14 through 2026-03-17
Mon
-
Tue
Wed
Thu
-
Fri
-
Sat
Sun
-
Duration: 2:02, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2068
21:48
Seattle-Tacoma (SEA)

23:50
Santa Rosa (STS)
Effective 2026-02-12 through 2026-03-16
Mon
Tue
-
Wed
-
Thu
Fri
Sat
-
Sun
Duration: 2:02, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2139
17:08
Seattle-Tacoma (SEA)

19:10
Santa Rosa (STS)
Effective from 2026-10-03
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2142
19:55
Seattle-Tacoma (SEA)

21:51
Santa Rosa (STS)
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 1:56, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2344
08:30
Seattle-Tacoma (SEA)

10:32
Santa Rosa (STS)
Effective 2026-02-12 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:02, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2344
08:35
Seattle-Tacoma (SEA)

10:35
Santa Rosa (STS)
Effective 2026-01-07 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:00, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS2431
20:09
Seattle-Tacoma (SEA)

22:17
Santa Rosa (STS)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS3380
11:20
Seattle-Tacoma (SEA)

13:25
Santa Rosa (STS)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:05, non-stop
Embraer EMB 175 (E75)
Direct Flights:
Alaska Airlines AS3411
11:20
Seattle-Tacoma (SEA)

13:28
Santa Rosa (STS)
Effective 2026-06-10 through 2026-08-18
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 2:08, non-stop
Embraer EMB 175 (E75)
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Santa Rosa airport (STS).
  • The flight distance is 618 miles, or 994 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 1:56 and 2:08.
All SEA-STS flights
All Alaska Airlines flights
Return (STS-SEA) flights
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