Finnair
Oneworld
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Seattle–Tacoma International Airport
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Scan through all non-stop flights from Helsinki to Seattle / Tacoma. The full flight schedule below gives an overview of all non-stop flights from HEL to SEA, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
In Seattle / Tacoma, the summers are known for being warm, long, and dry, with temperatures typically reaching about 30°C (86°F). The area’s breathtaking scenery complements the sun-filled lifestyle, making it a popular destination for visitors all year round who are looking for relaxation, fun by the water, and the beauty of the outdoors.
Seattle / Tacoma is best explored from mid-spring to summer, specifically between April and September, as most rainfall occurs from October to February.
Currently, there is only one airline operating non-stop flights from Helsinki HEL to Seattle / Tacoma SEA, which is Finnair. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their HEL SEA flight schedule.
Flights from HEL to SEA are operated once a week. All flights depart at 16:20.
You can fly in Economy, Premium Economy and Business Class. First Class is not available on this route (at least not as a non-stop flight).
The fastest direct flight from Helsinki to Seattle / Tacoma takes 9 hours and 40 minutes. The flight distance between Helsinki and Seattle / Tacoma is 4,765 miles (or 7,669 km).
There are 3 airports in Seattle / Tacoma: Seattle–Tacoma International Airport (SEA), Boeing Field/King County Internat (BFI) and Kenmore Air Harbor Seaplane Base (FAA: W55) (LKE).
There is 1 flight per week flying from Helsinki to Seattle / Tacoma (as of April 2026).
9 hours and 40 minutes is the average flight time from Helsinki to Seattle / Tacoma.
The distance from Helsinki to Seattle / Tacoma is 4,765 miles (7,669 kilometers).
Finnair is the only airline flying nonstop from Helsinki to Seattle / Tacoma.
Oneworld is currently the only alliance flying nonstop from Helsinki to Seattle / Tacoma.
You can fly non-stop in Economy, Premium Economy and Business Class.
Aircraft types that fly from Helsinki to Seattle / Tacoma:
The earliest flight departs at 16:20 from Helsinki and arrives at 16:00 at Seattle / Tacoma.
The latest flight departs at 16:20 from Helsinki and arrives at 16:00 at Seattle / Tacoma.
4,765 miles (7,669 km) · 9h 40m
16:20
16:00
Finnair
Oneworld
AY 33
Finnair
Airbus A330-300
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W
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F
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