Cheap flights from Seattle to Helsinki Vantaa

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Find the cheapest month or even day of the year to fly to Helsinki Vantaa

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Flight deals from Seattle to Helsinki Vantaa Airport

Looking for a cheap last-minute deal or the best return flight from Seattle to Helsinki Vantaa Airport? If you want to travel next month, return fares start from $1,123. Find the lowest prices on one-way and return tickets right here.

Helsinki.$638 per passenger.Departing Tue, 3 Nov.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Paine Field on Tue, 3 Nov, arriving in Helsinki Vantaa.Price includes taxes and charges.From $638, select.

Helsinki.$710 per passenger.Departing Tue, 27 Oct.One-way flight with Alaska Airlines.Outbound indirect flight with Alaska Airlines, departs from Seattle / Tacoma International on Tue, 27 Oct, arriving in Helsinki Vantaa.Price includes taxes and charges.From $710, select.

Helsinki.$711 per passenger.Departing Tue, 5 May.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Tue, 5 May, arriving in Helsinki Vantaa.Price includes taxes and charges.From $711, select.

Helsinki.$711 per passenger.Departing Wed, 15 Apr.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Wed, 15 Apr, arriving in Helsinki Vantaa.Price includes taxes and charges.From $711, select.

Helsinki.$711 per passenger.Departing Thu, 10 Sep.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Thu, 10 Sep, arriving in Helsinki Vantaa.Price includes taxes and charges.From $711, select.

Helsinki.$714 per passenger.Departing Sun, 29 Mar.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Sun, 29 Mar, arriving in Helsinki Vantaa.Price includes taxes and charges.From $714, select.

Helsinki.$716 per passenger.Departing Sun, 16 Aug.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Sun, 16 Aug, arriving in Helsinki Vantaa.Price includes taxes and charges.From $716, select.

Helsinki.$716 per passenger.Departing Mon, 15 Feb.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Mon, 15 Feb, arriving in Helsinki Vantaa.Price includes taxes and charges.From $716, select.

Helsinki.$716 per passenger.Departing Sun, 27 Dec.One-way flight with Turkish Airlines.Outbound indirect flight with Turkish Airlines, departs from Seattle / Tacoma International on Sun, 27 Dec, arriving in Helsinki Vantaa.Price includes taxes and charges.From $716, select.

Helsinki.$840 per passenger.Departing Tue, 5 May.One-way flight with British Airways.Outbound direct flight with British Airways departs from Seattle / Tacoma International on Tue, 5 May, arriving in Helsinki Vantaa.Price includes taxes and charges.From $840, select.

Helsinki.$894 per passenger.Departing Tue, 23 Jun.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Tue, 23 Jun, arriving in Helsinki Vantaa.Price includes taxes and charges.From $894, select.

Helsinki.$899 per passenger.Departing Mon, 14 Sep.One-way flight with Finnair.Outbound direct flight with Finnair departs from Seattle / Tacoma International on Mon, 14 Sep, arriving in Helsinki Vantaa.Price includes taxes and charges.From $899, select.

Helsinki.$899 per passenger.Departing Mon, 31 Aug.One-way flight with Finnair.Outbound direct flight with Finnair departs from Seattle / Tacoma International on Mon, 31 Aug, arriving in Helsinki Vantaa.Price includes taxes and charges.From $899, select.

Helsinki.$1,013 per passenger.Departing Sun, 5 Jul.One-way flight with Icelandair.Outbound indirect flight with Icelandair, departs from Seattle / Tacoma International on Sun, 5 Jul, arriving in Helsinki Vantaa.Price includes taxes and charges.From $1,013, select.

Helsinki.$1,058 per passenger.Departing Tue, 21 Jul.One-way flight with Finnair.Outbound direct flight with Finnair departs from Seattle / Tacoma International on Tue, 21 Jul, arriving in Helsinki Vantaa.Price includes taxes and charges.From $1,058, select.

Helsinki.$1,143 per passenger.Departing Tue, 2 Jun.One-way flight with Finnair.Outbound direct flight with Finnair departs from Seattle / Tacoma International on Tue, 2 Jun, arriving in Helsinki Vantaa.Price includes taxes and charges.From $1,143, 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 November.

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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.

Helsinki Vantaa

17km from central Helsinki

ClosestCheapest

from $638

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Seattle to Helsinki: Flight information

The things to know before you go.

Cheapest flight found	$638
Cheapest month to fly	November
Average flight time	9 hrs, 30 mins
Most popular airline	American Airlines
Average flights per week	14

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 $444. 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 British Airways fly direct from Seattle to Helsinki Vantaa.

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

As of March 2026, there are 14 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 September.

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, 29 September 2026.

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.

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

Seattle-Tacoma International Airport (SEA) is Seattle's main airport. Explore your options for booking a flight from Seattle to Helsinki-Vantaa Airport (HEL) jetting off from here.
Around 9 hours 30 minutes is the typical travel time on a direct Seattle to Helsinki-Vantaa Airport flight.
Helsinki-Vantaa Airport is located in Helsinki. The city follows the UTC+2 timezone and is ten hours ahead of Seattle.
Arriving two hours before an international flight and one hour ahead of a domestic departure are golden rules for hassle-free flying. Be at the airport with enough time to catch your flight from Seattle to HEL.
With more people on the move during busy months like July, be at your terminal even earlier. Two hours for domestic flights and up to four for international journeys will allow for additional wait times. Remember things also get busy during major holidays like Fourth of July.

Airports in Seattle

Seattle-Tacoma International Airport (SEA)

Seattle-Tacoma International Airport (SEA) provides a hassle-free way to reach your destination. Nonstop flights from Seattle to Helsinki-Vantaa Airport (HEL) depart from this terminal.
When leaving from SEA, you can take a direct flight from Seattle to Helsinki-Vantaa Airport with Finnair.
The airline most travellers choose when flying between SEA and HEL is Finnair.
Consider adding a stopover to find cheap flights from Seattle to HEL. Simply deselect 'Direct flights only' when searching for departures from Seattle-Tacoma International Airport (SEA). Break up your trip (and maybe get a better deal) by stopping at one of these airports:
- London Heathrow Airport (LHR)
- Amsterdam Schiphol Airport (AMS)
- Keflavik Airport (KEF)
Travelling from central Seattle to SEA takes around 35 minutes by public transport. If you drive, ride-share or grab a taxi, you'll cover the 23 kilometres in 25 minutes or so, depending on traffic.
In search of a comfortable hotel close to Seattle-Tacoma International Airport? If you've booked an early flight from Seattle to Helsinki-Vantaa Airport, these stays will put you conveniently close to check-in:
Seattle-Tacoma International Airport earns top marks for its on-time performance. 80% of flights that take off from SEA arrive at their destination on time.

Seattle Paine Field International Airport (PAE)

PAE is around 40 kilometres from central Seattle. It'll take you 40 minutes or so to get to the airport driving from the city centre. Public transport takes roughly 1 hour 30 minutes.
Want to enjoy an extra night away before your Seattle to HEL flight? Relax in a hotel near Seattle Paine Field International Airport before your adventure officially starts. These stays have your key waiting:
Seattle Paine Field International Airport has a reputation for reliability and timeliness. 80% of flights leaving here make it to their final destination as planned.

About Helsinki-Vantaa Airport (HEL)

The last thing you want is a long journey to your hotel if you're getting in late on a flight from Seattle to Helsinki-Vantaa Airport. Book one of these accommodation options near HEL instead:
Lock in the lowest price by booking your vehicle around two weeks ahead of your Seattle to Helsinki-Vantaa Airport flight.

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

Helsinki-Vantaa Airport is around 18 kilometres from the centre of Helsinki. It takes around 25 minutes or so to get to the city by car.
Travelling by public transport will take you around 30 minutes.

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

The lowest price we've found for a one-way ticket from Seattle to Helsinki-Vantaa Airport is $638. For a return flight on this route, the best price is $444. Depending on the availability when you book, these fares can change.
Get cheap flights from Seattle to HEL by booking seven months ahead. Based on our research, that's the sweet spot for bagging a bargain.
Organise your trip for December. That's the best month for scoring an awesome deal on Seattle to Helsinki-Vantaa Airport tickets. If you're flexible with your travel dates, use the 'Whole month' tool to find the cheapest price across each month.
Snapping up a cheap plane ticket from Seattle to HEL is a piece of cake with Price Alerts. All you need to do is set up one of these automatic alerts and we'll get in touch when the price has dropped.
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, airlines and number of stops. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest.'

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

It's time to decide your travel dates for your flight from Seattle to Helsinki-Vantaa Airport (HEL). September is the most popular month to visit Helsinki. If crowds aren't your thing, go in January.
When booking your Seattle to HEL plane ticket, consider what kind of weather works for you. July is the warmest month in Helsinki, with temperatures ranging from 12ºC (54ºF) to 26ºC (79ºF).
Look for cheap tickets from Seattle to Helsinki-Vantaa Airport in January if you'd rather travel during cooler conditions. Temperatures are at their lowest then, ranging between -12ºC (10ºF) and 3ºC (37ºF).

More about Helsinki

Start your Helsinki trip right by choosing the perfect place to stay. As soon as you've booked your flight from Seattle to Helsinki-Vantaa Airport, browse our selection of hotels including:
Your visit to Helsinki wouldn't be complete without a bit of sightseeing. Top attractions that belong on your itinerary include Helsinki Cathedral, Helsinki Central Station and Finnish National Opera and Ballet.

Explore more of Finland

Helsinki is always a good idea, but there are so many other corners of Finland just waiting to be explored. Around 145 kilometres northwest of Helsinki, a trip to Tampere will keep your itinerary packed. Don't miss top attractions like Pyynikki Observation Tower, The Natural History Museum and Pyynikki Nature Reserve.
Around 153 kilometres west of Helsinki, Turku is another essential stop in Finland. Experience the best of this destination with a visit to Turku Castle, Turku Cathedral and Ruissalo Nature Conservation Area.