Seattle (SEA) to Helsinki (HEL) flights
One airline flies nonstop from Seattle (SEA) to Helsinki (HEL): Finnair. The two airports are 4,768 miles (7,673 km) apart. Finnair is in oneworld. There are also 18 ways to fly it with one stop, through Reykjavik, Copenhagen and Dublin and more.
Airlines flying nonstop from SEA to HEL
- Finnaironeworld · bookable with 9 programsWho books it
Book SEA to HEL with points
Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.
- Alaska Atmos RewardsBooks Finnair
- American AAdvantageBooks Finnair
- British Airways ClubBooks Finnair
- Cathay Pacific Asia MilesBooks Finnair
- Finnair PlusBooks Finnair
- Iberia ClubBooks Finnair
- JAL Mileage BankBooks Finnair
- Qantas Frequent FlyerBooks Finnair
- Qatar Airways Privilege ClubBooks Finnair
SEA to HEL with one stop
18 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.
- Via Reykjavik (KEF)Icelandair the whole way
- Via Copenhagen (CPH)Scandinavian Airlines the whole way
- Via Dublin (DUB)Aer Lingus, then Finnair
- Via Amsterdam (AMS)Delta Air Lines, then Finnair and KLM
- Via London (LHR)British Airways, Virgin Atlantic and 2 more, then Finnair
+1 - Via Frankfurt (FRA)Condor and Lufthansa, then Finnair and Lufthansa City Airlines
- Via Chicago (ORD)American Airlines, Alaska Airlines and 2 more, then Finnair
+1 - Via Toronto (YYZ)Air Canada and Alaska Airlines, then Finnair
- Via Paris (CDG)Air France the whole way
- Via Munich (MUC)Lufthansa the whole way
- Via New York (JFK)Alaska Airlines, JetBlue Airways and 1 more, then Finnair
- Via Los Angeles (LAX)American Airlines, Alaska Airlines and 3 more, then Finnair+2
- Via Dallas (DFW)American Airlines, Alaska Airlines and 1 more, then Finnair
- Via Barcelona (BCN)Delta Air Lines, then Finnair and Norwegian Air Sweden
- Via Rome (FCO)Delta Air Lines and Alaska Airlines, then Finnair
SEA to HEL: common questions
Which airlines fly nonstop from SEA to HEL?
Finnair (oneworld) flies nonstop from Seattle (SEA) to Helsinki (HEL).
How far is Seattle from Helsinki by plane?
Seattle (SEA) and Helsinki (HEL) are 4,768 miles (7,673 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.
Which points programs can book SEA to HEL award flights?
9 programs can book at least one of the nonstop airlines: Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, Finnair Plus, Iberia Club, JAL Mileage Bank, Qantas Frequent Flyer and 1 more. Which flights each can book depends on its partners, so check the airline before you transfer points.
How many miles does SEA to HEL cost?
It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for SEA to HEL with taxes and fees.
Where can I connect between Seattle and Helsinki?
The most direct connections are through Reykjavik (KEF), Copenhagen (CPH), Dublin (DUB), Amsterdam (AMS) and London (LHR). On 5 of them the same airline flies both flights, for example Icelandair through Reykjavik.
More routes
Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.