Alaska Airlines flights from Seattle-Tacoma (SEA) to Miami (MIA).

Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Daily 08:16 Seattle-Tacoma (SEA) 17:11 Miami (MIA)
Alaska Airlines AS 304 Non-stop Boeing 737 MAX 9 (7M9) 5:55 Valid until 2026-01-05
Tue 08:16 Seattle-Tacoma (SEA) 17:11 Miami (MIA)
Alaska Airlines AS 304 Non-stop Boeing 737 (73J) 5:55 Operates only on 2026-01-06
Wed 07:55 Seattle-Tacoma (SEA) 16:55 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 (73J) 6:00 Operates only on 2026-03-18
Daily 07:55 Seattle-Tacoma (SEA) 17:05 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 (73J) 6:10 Effective 2026-03-19 through 2026-05-12
Daily 08:08 Seattle-Tacoma (SEA) 16:59 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 MAX 9 (7M9) 5:51 Effective 2026-02-12 through 2026-03-05
Fri 08:08 Seattle-Tacoma (SEA) 16:59 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 (73J) 5:51 Operates only on 2026-03-06
Daily 08:08 Seattle-Tacoma (SEA) 16:59 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 MAX 9 (7M9) 5:51 Effective 2026-03-07 through 2026-03-17
Daily 08:25 Seattle-Tacoma (SEA) 17:21 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 (73J) 5:56 Effective 2026-05-13 through 2026-06-09
Daily 08:25 Seattle-Tacoma (SEA) 17:26 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 (73J) 6:01 Effective from 2026-06-10
Mon-Wed,Fri-Sun 08:44 Seattle-Tacoma (SEA) 17:34 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 MAX 9 (7M9) 5:50 Effective 2026-01-07 through 2026-01-14
Thu 08:44 Seattle-Tacoma (SEA) 17:34 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 (73J) 5:50 Operates only on 2026-01-08
Mon,Wed-Sun 08:44 Seattle-Tacoma (SEA) 17:34 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 MAX 9 (7M9) 5:50 Effective 2026-01-15 through 2026-01-26
Tue 08:44 Seattle-Tacoma (SEA) 17:34 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 (73J) 5:50 Operates only on 2026-01-20
Daily 08:44 Seattle-Tacoma (SEA) 17:34 Miami (MIA)
Alaska Airlines AS 305 Non-stop Boeing 737 MAX 9 (7M9) 5:50 Effective 2026-01-27 through 2026-02-11
Daily 21:20 Seattle-Tacoma (SEA) 06:05 Miami (MIA)
Alaska Airlines AS 792 Non-stop Boeing 737 MAX 9 (7M9) 5:45 Valid until 2026-01-05
The flight arrives 1 day after departure.




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Alaska Airlines flights from Seattle-Tacoma (SEA) to Miami (MIA).
Select flight date:
FLIGHT SCHEDULE
Direct Flights:
Alaska Airlines AS304
08:16
Seattle-Tacoma (SEA)

17:11
Miami (MIA)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:55, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS304
08:16
Seattle-Tacoma (SEA)

17:11
Miami (MIA)
Operates only on 2026-01-06
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:55, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
07:55
Seattle-Tacoma (SEA)

16:55
Miami (MIA)
Operates only on 2026-03-18
Mon
-
Tue
-
Wed
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 6:00, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
07:55
Seattle-Tacoma (SEA)

17:05
Miami (MIA)
Effective 2026-03-19 through 2026-05-12
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:10, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
08:08
Seattle-Tacoma (SEA)

16:59
Miami (MIA)
Effective 2026-02-12 through 2026-03-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:51, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS305
08:08
Seattle-Tacoma (SEA)

16:59
Miami (MIA)
Operates only on 2026-03-06
Mon
-
Tue
-
Wed
-
Thu
-
Fri
Sat
-
Sun
-
Duration: 5:51, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
08:08
Seattle-Tacoma (SEA)

16:59
Miami (MIA)
Effective 2026-03-07 through 2026-03-17
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:51, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS305
08:25
Seattle-Tacoma (SEA)

17:21
Miami (MIA)
Effective 2026-05-13 through 2026-06-09
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:56, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
08:25
Seattle-Tacoma (SEA)

17:26
Miami (MIA)
Effective from 2026-06-10
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 6:01, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
08:44
Seattle-Tacoma (SEA)

17:34
Miami (MIA)
Effective 2026-01-07 through 2026-01-14
Mon
Tue
Wed
Thu
-
Fri
Sat
Sun
Duration: 5:50, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS305
08:44
Seattle-Tacoma (SEA)

17:34
Miami (MIA)
Operates only on 2026-01-08
Mon
-
Tue
-
Wed
-
Thu
Fri
-
Sat
-
Sun
-
Duration: 5:50, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
08:44
Seattle-Tacoma (SEA)

17:34
Miami (MIA)
Effective 2026-01-15 through 2026-01-26
Mon
Tue
-
Wed
Thu
Fri
Sat
Sun
Duration: 5:50, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS305
08:44
Seattle-Tacoma (SEA)

17:34
Miami (MIA)
Operates only on 2026-01-20
Mon
-
Tue
Wed
-
Thu
-
Fri
-
Sat
-
Sun
-
Duration: 5:50, non-stop
Boeing 737 (73J)
Direct Flights:
Alaska Airlines AS305
08:44
Seattle-Tacoma (SEA)

17:34
Miami (MIA)
Effective 2026-01-27 through 2026-02-11
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:50, non-stop
Boeing 737 MAX 9 (7M9)
Direct Flights:
Alaska Airlines AS792
21:20
Seattle-Tacoma (SEA)

06:05(+1)
Miami (MIA)
Valid until 2026-01-05
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Duration: 5:45, non-stop
Boeing 737 MAX 9 (7M9)
The flight arrives 1 day after departure.
  • A domestic route departing from the Seattle-Tacoma airport (SEA) and arriving at Miami airport (MIA).
  • The flight distance is 2720 miles, or 4377 km.
  • The timezone of the departure airport is UTC-8 , and the timezone of the arrival airport is UTC-5 . 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.
  • For direct flights, the flight time varies between 5:45 and 6:10.
All SEA-MIA flights
All Alaska Airlines flights
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