$701 Find Cheap Flights from Finland to Seattle

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight to Seattle departing on 8/12. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Seattle

 
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results for flights to Seattle, as well as popular online travel agencies
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Cheap Flights from Finland to Seattle

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Finland to Seattle that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Finland to Seattle

Sat, Oct 18 - Sat, Nov 1
Turkish Airlines Logo
12:35 pm - 5:15 pmHEL-SEA
38h 40m1 stop
Turkish Airlines Logo
8:00 pm - 6:05 pmSEA-HEL
37h 05m1 stop
$761Turkish Airlines
Find Deal
Sat, Oct 18 - Sat, Nov 1
Turkish Airlines Logo
12:35 pm - 5:15 pmHEL-SEA
38h 40m1 stop
Turkish Airlines Logo
8:00 pm - 6:05 pmSEA-HEL
37h 05m1 stop
$777Turkish Airlines
Find Deal
Sat, Oct 18 - Sat, Nov 1
Turkish Airlines Logo
12:35 pm - 5:15 pmHEL-SEA
38h 40m1 stop
Turkish Airlines Logo
8:00 pm - 6:05 pmSEA-HEL
37h 05m1 stop
$781Turkish Airlines
Find Deal
Sat, Nov 1 - Fri, Nov 7
Icelandair Logo
1:55 pm - 6:00 pmHEL-SEA
13h 05m1 stop
Icelandair Logo
2:35 pm - 12:55 pmSEA-HEL
12h 20m1 stop
$795Icelandair
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Sun, Sep 14 - Sun, Sep 21
 Logo
1:55 pm - 4:05 pmHEL-SEA
36h 10m1 stop
 Logo
1:30 pm - 11:20 pmSEA-HEL
23h 50m1 stop
Sat, Nov 1 - Fri, Nov 7
Icelandair Logo
10:50 am - 6:00 pmHEL-SEA
16h 10m2 stops
Icelandair Logo
2:35 pm - 7:45 pmSEA-HEL
19h 10m2 stops
$799Icelandair
Find Deal
Thu, Aug 21 - Fri, Sep 5
Air France Logo
6:40 am - 5:35 pmHEL-SEA
20h 55m1 stop
Air France Logo
6:45 pm - 11:20 pmSEA-HEL
18h 35m1 stop
$821Air France
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Sat, Nov 1 - Fri, Nov 7
Delta Logo
6:30 am - 12:25 pmHEL-SEA
14h 55m1 stop
Delta Logo
11:43 am - 4:25 pmSEA-HEL
18h 42m2 stops
$822Delta
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Sun, Sep 14 - Sun, Sep 21
 Logo
8:15 am - 7:31 pmHEL-SEA
21h 16m3 stops
 Logo
7:15 am - 9:20 pmSEA-HEL
28h 05m3 stops
Sun, Sep 14 - Sun, Sep 21
Delta Logo
6:40 am - 5:40 pmHEL-SEA
21h 00m1 stop
Delta Logo
1:30 pm - 4:40 pmSEA-HEL
17h 10m1 stop
$836Delta
Find Deal
Booking Insights

KAYAK's insights & trends for flights to Seattle

Get data-powered insights and trends for flights to Seattle to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest month to fly to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights to Seattle, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights to Seattle is March, where tickets cost $733 on average for return flights. On the other hand, the most expensive months are July and August, where the average cost of tickets from Finland is $1,001 and $915 respectively. For one-way flights, the best month to travel is March with an average price of $733.

How far in advance should I book a flight to Seattle?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights to Seattle, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price, you should book around 5 weeks before departure, which saves you about 40% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 25 weeks before departure.


Good to know

Low seasonFebruary
Cheapest flight$701
Best time to beat the crowds with an average 6% drop in price.
Most popular time to fly with an average 20% increase in price.
Flight from Helsinki to Seattle

FAQs - booking Seattle flights

  • How far is Seattle/Tacoma Intl Airport from central Seattle?

    Seattle/Tacoma Intl Airport is 11 miles from the center of Seattle.

  • What is the name of Seattle’s airport?

    When flying to Seattle, you'll arrive at Seattle/Tacoma Intl Airport (SEA). The airport is also known as Seattle-Tacoma Intl, Seattle/Tacoma, or Seattle/Tacoma Intl.

  • How much is a flight to Seattle?

    On average, a flight to Seattle costs $1,373. The cheapest price found on KAYAK in the last 2 weeks cost $895 and departed from Helsinki-Vantaa Airport.

  • What is the cheapest day to fly to Seattle?

    Based on KAYAK data, the cheapest day to fly to Seattle is Monday where round-trip tickets can be as cheap as $908. On the other hand, the most expensive day to fly is Wednesday, where round-trip prices are $1,051 on average.

  • How does KAYAK find such low prices on flights to Seattle?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights to Seattle.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket to Seattle?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Seattle is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights to Seattle?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Seattle with an airline and back with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight to Seattle?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Seattle up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

  • What is the cheapest time of day to fly to Seattle?

    The cheapest time of day to fly to Seattle is generally in the afternoon, when round-trip flights cost $761 on average. The most expensive time of day to fly to Seattle is generally in the evening, which is peak travel time and where the average cost of a ticket is $948.

  • How many direct flights to Seattle are there each week?

    Each week there are around 4,943 direct flights from within Finland to Seattle. The most common day for departures is Sunday, with 15% of flights taking off on this day.

Top tips for finding cheap flights to Seattle

  • Looking for cheap airfare to Seattle? 25% of our users found round-trip tickets to Seattle for the following prices or less: From Helsinki $1,231
  • Enter your preferred departure airport and travel dates into the search form above to unlock the latest Seattle flight deals.

Reviews of the top airlines flying from Finland to Seattle

 
See real verified KAYAK customer reviews for airlines flying to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline from Finland to Seattle. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with to Seattle? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.6
FinnairOverall score based on 1316 reviews
7.5Comfort
6.9Entertainment
7.6Boarding
8.1Crew
6.7Food
Airline reviews

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

6.0 GoodAnonymous, Jul 2025HEL - DFW
Read more Finnair reviews

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Iceland airlines doesn't provide any meal on flight to and from New York, except water and soda. Airline over charge for checking in luggage. I'm really upset.

I had an exit row and so was Comfortable on the long flight.

Everything you need to know for your flight to Seattle

Information on the airport you'll fly into in Seattle

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