Cheap Flights from Seattle (SEAA) to Helsinki (HEL)

Compare flight fares from Seattle to Helsinki Vantaa

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Flight deals from Seattle to Helsinki Vantaa

Looking for a cheap last-minute deal or the best return flight from Seattle to Helsinki Vantaa? Find the lowest prices on one-way and return tickets right here.

Helsinki.$596 per passenger.Departing Tue, 14 Oct, returning Tue, 21 Oct.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Tue, 14 Oct, arriving in Helsinki Vantaa.Inbound indirect flight with Icelandair, departs from Helsinki Vantaa on Tue, 21 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $596, select.

Helsinki.$608 per passenger.Departing Sun, 14 Sep, returning Sat, 27 Sep.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Seattle / Tacoma International on Sun, 14 Sep, arriving in Helsinki Vantaa.Inbound indirect flight with Scandinavian Airlines, departs from Helsinki Vantaa on Sat, 27 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $608, select.

Helsinki.$760 per passenger.Departing Mon, 3 Nov, returning Mon, 10 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Mon, 3 Nov, arriving in Helsinki Vantaa.Inbound indirect flight with Icelandair, departs from Helsinki Vantaa on Mon, 10 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $760, select.

Helsinki.$808 per passenger.Departing Tue, 28 Oct, returning Tue, 4 Nov.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Tue, 28 Oct, arriving in Helsinki Vantaa.Inbound indirect flight with Icelandair, departs from Helsinki Vantaa on Tue, 4 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $808, select.

Helsinki.$878 per passenger.Departing Fri, 15 Aug, returning Fri, 22 Aug.Return flight with Scandinavian Airlines.Outbound indirect flight with Scandinavian Airlines, departs from Seattle / Tacoma International on Fri, 15 Aug, arriving in Helsinki Vantaa.Inbound indirect flight with Scandinavian Airlines, departs from Helsinki Vantaa on Fri, 22 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $878, select.

Helsinki.$1,023 per passenger.Departing Mon, 2 Mar, returning Mon, 9 Mar.Return flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Mon, 2 Mar, arriving in Helsinki Vantaa.Inbound indirect flight with Icelandair, departs from Helsinki Vantaa on Mon, 9 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,023, select.

Helsinki.$1,059 per passenger.Departing Tue, 2 Dec, returning Tue, 9 Dec.Return flight with Finnair.Outbound indirect flight with Finnair, departs from Seattle / Tacoma International on Tue, 2 Dec, arriving in Helsinki Vantaa.Inbound indirect flight with Finnair, departs from Helsinki Vantaa on Tue, 9 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,059, select.

Helsinki.$1,111 per passenger.Departing Tue, 30 Sep, returning Thu, 8 Jan.Return flight with Air France and KLM.Outbound indirect flight with Air France, departs from Seattle / Tacoma International on Tue, 30 Sep, arriving in Helsinki Vantaa.Inbound indirect flight with KLM, departs from Helsinki Vantaa on Thu, 8 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From $1,111, select.

Find the cheapest month to fly from Seattle to Helsinki Vantaa

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Seattle to Helsinki Vantaa flights are currently cheapest in October.

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Direct flights from Seattle to Helsinki Vantaa

Seattle to Helsinki Vantaa: Alternative routes

Compare routes from Seattle to Helsinki below. You may find an airport to fly into that's cheaper, faster, or easier than Helsinki Vantaa.

Seattle to Helsinki: Flight information

The things to know before you go.

Cheapest flight found	$596
Cheapest month to fly	October
Average flight time	9 hrs, 30 mins
Most popular airline	American Airlines
Average flights per week	17

Finding cheap flights from Seattle to Helsinki Vantaa: Frequently asked questions

How much are return flights from Seattle to Helsinki Vantaa?

The best price we found for a return flight from Seattle to Helsinki Vantaa is $596. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.

How long does it take to fly from Seattle to Helsinki Vantaa?

9 hours and 30 minutes is the average flight time from Seattle to Helsinki Vantaa.

Which airlines fly direct from Seattle to Helsinki Vantaa?

American Airlines, Finnair and Iberia fly direct from Seattle to Helsinki Vantaa.

How many flights are there a week from Seattle to Helsinki Vantaa?

As of July 2025, there are 17 flights per week flying from Seattle to Helsinki Vantaa.

When is the cheapest time to fly from Seattle to Helsinki Vantaa?

The cheapest month to fly from Seattle to Helsinki Vantaa is usually October.

Which upcoming date is cheapest to fly from Seattle to Helsinki Vantaa Airport on?

After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Seattle to Helsinki Vantaa Airport on Tuesday, 14 October 2025.

Can I get a direct flight from Seattle to Helsinki Vantaa Airport?

Yes – the average flight time is 9 hours and 30 minutes.

How can I find the best flight deal to Helsinki Vantaa?

We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Helsinki Vantaa but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

When is the best time to book flights to Helsinki?

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Helsinki is around 40 days in advance, so don’t leave your flight to the last minute.

Travelling from Seattle to Helsinki-Vantaa Airport (HEL): What you need to know

There are a couple of main airports where your trip can begin in Seattle. Check out your options leaving from Seattle-Tacoma International Airport (SEA) or Lake Union Sea Plane Base Airport (LKE) when organising your flight from Seattle to Helsinki-Vantaa Airport (HEL).
The average time for a direct Seattle to Helsinki-Vantaa Airport flight is 9 hours 15 minutes.
Helsinki-Vantaa Airport is located in Helsinki. The city runs on the UTC+2 timezone and is nine hours ahead of Seattle.
Seattle-Tacoma International Airport (SEA) to Helsinki-Vantaa Airport (HEL) is the busiest route, with 2 direct services each week. Get from SEA to HEL on Finnair's 5:40pm departure.
Your flight from Seattle to HEL won't wait if you're running late, so get to the airport on time. Arrive up to one hour in advance for domestic flights and two hours ahead when you're travelling internationally.
Peak season means busier airports, so aim to get there even earlier. Give yourself at least two hours before a domestic flight and four hours for an international journey to stick to your schedule.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) will have you travelling directly to your destination. Nonstop flights from Seattle to Helsinki-Vantaa Airport (HEL) depart from this terminal.
Finnair is a popular airline that operates direct flights from Seattle to Helsinki-Vantaa Airport leaving from SEA.
Finnair is the airline with the highest number of bookings for flights from SEA to HEL.
We make it a breeze to find cheap flights from Seattle to HEL with a stopover. To explore the options leaving from Seattle-Tacoma International Airport (SEA), uncheck 'Direct flights only.' Then, choose a flight that has a stop long enough to tour your chosen city. Popular stopovers between SEA and HEL include:
- London Heathrow Airport (LHR)
- Amsterdam Airport Schiphol (AMS)
- Keflavik International Airport (KEF)
SEA is about 23 kilometres from central Seattle. If you're ride-sharing, driving or catching a cab from the centre, it'll take 20 minutes or so to get there, depending on traffic. If you're using public transport, expect the trip time to be around 55 minutes.
Booked an early flight from Seattle to Helsinki-Vantaa Airport? Avoid the mad dash to the terminal (and get a little more snooze time) by picking one of these hotels close to Seattle-Tacoma International Airport:
Seattle-Tacoma International Airport has a solid on-time record, reducing the likelihood of delays. Departures from SEA land on schedule 81.27% of the time.

Lake Union Sea Plane Base Airport (LKE)

You can reach LKE from the centre of Seattle in approximately 10 minutes by car, depending on traffic conditions. The ride by public transport takes roughly 25 minutes to cover the 3 kilometres or so.
Want to enjoy an extra night away before catching your Seattle to HEL flight? Relax in a hotel near Lake Union Sea Plane Base Airport before your holiday officially begins. These stays have your key waiting:

About Helsinki-Vantaa Airport (HEL)

Have a late flight from Seattle to Helsinki-Vantaa Airport? Don't let it rob you of real rest. Stay at one of these hotels near HEL and give yourself a well-earned lights-out:
Fast-track your adventure by picking up a Helsinki-Vantaa Airport rental car. Grab a set of wheels from Green Motion, Alamo or addCar and explore beyond Helsinki's usual tourist stops.
Lock in the best possible rate by booking your ride around two weeks before your Seattle to Helsinki-Vantaa Airport flight.

Getting from Helsinki-Vantaa Airport (HEL) to central Helsinki

Helsinki-Vantaa Airport is around 16 kilometres from central Helsinki. The time it takes to get there in a car hire or cab depends on the time of day. Do a little research beforehand.
It typically takes 45 minutes if you're travelling on public transport.

How to find the cheapest flights from Seattle to Helsinki-Vantaa Airport (HEL)

$670 is the lowest price for a one-way ticket from Seattle to Helsinki-Vantaa Airport. A return flight starts from $596. These fares may change depending on availability.
Book seven months before your departure date. Pricing trends suggest that this is the ideal window for finding cheap flights from Seattle to HEL.
The best month for picking up cheap Seattle to Helsinki-Vantaa Airport tickets is December. Use the 'Whole month' tool to compare flight prices, then select the dates that offer the biggest savings.
Snapping up a cheap flight ticket from Seattle to HEL couldn't be easier with Price Alerts. All you need to do is create one of these automatic alerts and we'll notify you as soon as prices go down.
Discover the best deal on a flight from Seattle to Helsinki-Vantaa Airport with the help of the filters. Pick your ideal arrival and departure times, number of stops and airlines. You can also sort your results by 'Cheapest,' 'Fastest' or 'Best.'

The best time to fly from Seattle to Helsinki-Vantaa Airport (HEL)

June is when most people book flights from Seattle to Helsinki-Vantaa Airport (HEL). Visit Helsinki in February if you'd rather avoid peak season.
The warmest month in Helsinki is July, with temperatures ranging between 12ºC (54ºF) and 26ºC (79ºF). Lock in your Seattle to HEL flight ticket then if that's your definition of good weather.
January has temperatures of between -12ºC (10ºF) and 3ºC (37ºF). Search for cheap tickets from Seattle to Helsinki-Vantaa Airport around that time if you like travelling in cooler conditions.

More about Helsinki

When it comes to looking for somewhere to rest your head, you'll find the most popular stays in Helsinki right here. Check out these options after locking in your flight from Seattle to Helsinki-Vantaa Airport:
Helsinki Cathedral and Fortress of Suomenlinna are just the start of the popular attractions to put on your Helsinki itinerary. Keep the sightseeing going at Helsinki Central Station.

Explore more of Finland

Tampere is just one of the many places in Finland waiting to be explored once you've seen Helsinki. Around 145 kilometres away to the north-west, well-known attractions include Pyynikki Observation Tower, The Natural History Museum and Pyynikki Nature Reserve.
Turku is another standout destination in Finland and is around 153 kilometres west of Helsinki. No trip is complete without dropping by Turku Castle, Turku Cathedral and Ruissalo Nature Conservation Area.