HEL - SEA

$387 Find Cheap Flights from Helsinki 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 from Helsinki to Seattle departing on 5/30. 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

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 in flight searches from Helsinki to Seattle, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to Seattle, as well as popular online travel agencies
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Flights Deals

Cheap Flight Deals from Helsinki to Seattle (HEL-SEA)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helsinki 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.

Recent round-trip flight deals from Helsinki to Seattle

KAYAK's recommended round-trip deals from the most popular airlines that fly from Helsinki to Seattle.
Discover the best prices for you by selecting your travel dates on KAYAK.
Lufthansa Logo
12:40 pm - 4:59 pmHEL-SEA
14h 19m1 stop
Lufthansa Logo
7:00 am - 11:55 amSEA-HEL
18h 55m2 stops
$746Lufthansa
Find Deal
Fri, Sep 12 - Sat, Sep 20
Icelandair Logo
2:25 pm - 8:40 pmHEL-SEA
16h 15m2 stops
Icelandair Logo
3:45 pm - 3:45 pmSEA-HEL
14h 00m2 stops
$756Icelandair
Find Deal
Tue, Oct 14 - Tue, Oct 21
Turkish Airlines Logo
12:35 pm - 5:15 pmHEL-SEA
38h 40m1 stop
Turkish Airlines Logo
12:30 pm - 6:40 pmSEA-HEL
20h 10m1 stop
$758Turkish Airlines
Find Deal
Fri, Sep 12 - Sat, Sep 20
Lufthansa Logo
6:00 am - 4:59 pmHEL-SEA
20h 59m1 stop
Lufthansa Logo
6:50 pm - 11:50 pmSEA-HEL
19h 00m1 stop
$760Lufthansa
Find Deal
Fri, Sep 12 - Sun, Sep 21
United Airlines Logo
6:10 am - 11:55 amHEL-SEA
15h 45m1 stop
United Airlines Logo
7:00 am - 11:55 amSEA-HEL
18h 55m2 stops
$761United Airlines
Find Deal
Wed, Oct 15 - Tue, Oct 21
United Airlines Logo
6:10 am - 11:55 amHEL-SEA
15h 45m1 stop
United Airlines Logo
2:20 pm - 4:40 pmSEA-HEL
16h 20m1 stop
$763United Airlines
Find Deal
Wed, Oct 15 - Mon, Oct 20
Air Canada Logo
12:40 pm - 7:31 pmHEL-SEA
40h 51m2 stops
Air Canada Logo
12:10 pm - 12:50 pmSEA-HEL
38h 40m2 stops
$769Air Canada
Find Deal
Fri, Sep 12 - Sun, Sep 21
Turkish Airlines Logo
12:35 pm - 10:35 amHEL-SEA
32h 00m1 stop
Turkish Airlines Logo
7:10 pm - 6:40 pmSEA-HEL
37h 30m1 stop
$794Turkish Airlines
Find Deal
Fri, Sep 12 - Fri, Sep 19
Finnair Logo
4:20 pm - 4:00 pmHEL-SEA
9h 40mnonstop
Finnair Logo
5:40 pm - 1:10 pmSEA-HEL
9h 30mnonstop
$838Finnair
Find Deal
Mon, May 19 - Mon, May 26
Finnair Logo
4:25 pm - 11:09 pmHEL-SEA
16h 44m1 stop
Finnair Logo
5:40 pm - 1:10 pmSEA-HEL
9h 30mnonstop
$909Finnair
Find Deal
Thu, May 29 - Thu, Jun 5
Useful Info

KAYAK's insights & trends for Helsinki to Seattle flights

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

What’s the cheapest day of the week to fly from Helsinki to Seattle?

The average price of all round-trip flights from Helsinki to Seattle clicked on KAYAK for each day over the last 12 months.

If your flying dates are flexible, you should consider flying to Seattle on a Monday, as we generally find the cheapest rates on that day for this route. On the other hand, Tuesday is the most expensive day to fly from Helsinki to Seattle. For your return ticket, we recommend flying on a Sunday and avoiding Tuesdays for the best deals.

What is the cheapest month to fly from Helsinki to Seattle?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Helsinki 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 from Helsinki to Seattle is October, where tickets cost $725 (return) on average. On the other hand, the most expensive months are July and September, where the average cost of round-trip tickets is $1,089 and $935 respectively.

Can I save money by flying with a layover from Helsinki to Seattle?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $1,820, prices are generally cheapest when you fly direct.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Helsinki 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 on the flight from Helsinki to Seattle, you should book around 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 7 weeks before departure.

Good to know

Low seasonFebruary
High seasonJune
Cheapest flight$387
Best time to beat the crowds with an average 7% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Helsinki to Seattle

When to book flights from Helsinki to Seattle

Are your dates flexible? Find out the best times to travel from Helsinki to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Helsinki to Seattle

  • What is the cheapest flight from Helsinki to Seattle?

    In the last 3 days, the lowest price for a flight from Helsinki to Seattle was $387 for a one-way ticket and $746 for a round-trip.

  • Do I need a passport to fly between Helsinki and Seattle?

    Yes, you'll most likely have to show a valid passport before boarding the plane in Helsinki and on arrival in Seattle.

  • Which airports will I be using when flying from Helsinki to Seattle?

    On your way to Seattle, you’ll fly out from Helsinki-Vantaa. You’ll be landing at Seattle/Tacoma Intl.

  • Which aircraft models fly most regularly from Helsinki to Seattle?

    The Airbus A330-300 is the aircraft model that flies most regularly on the Helsinki to Seattle flight route.

  • Which airline alliances offer flights from Helsinki to Seattle?

    oneworld is the only airline alliance operating flights between Helsinki and Seattle.

  • On which days can I fly direct from Helsinki to Seattle?

    You can catch a nonstop flight from Helsinki to Seattle on on Monday, Wednesday, Thursday, Saturday, and Sunday.

  • Which is the best airline for flights from Helsinki to Seattle, Finnair or Air France?

    The two airlines most popular with KAYAK users for flights from Helsinki to Seattle are Finnair and Air France. With an average price for the route of $1,020 and an overall rating of 7.6, Finnair is the most popular choice. Air France is also a great choice for the route, with an average price of $906 and an overall rating of 7.4.

  • How does KAYAK find such low prices on flights from Helsinki 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 from Helsinki to Seattle.

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

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

  • What is the Hacker Fare option on flights from Helsinki 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 to Helsinki with another airline. Booking your flights between Helsinki and SEA can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helsinki 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 from Helsinki up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Helsinki to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $903 or less one-way.

Prefer to fly direct from Helsinki to Seattle?

Find which airlines fly direct from Helsinki-Vantaa Airport to Seattle/Tacoma Intl Airport, which days they fly and book direct flights.

Direct departures

Helsinki-Vantaa to Seattle/Tacoma Intl

Monday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Wednesday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Thursday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Saturday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Sunday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

See more direct flights

Direct returns

Seattle/Tacoma Intl to Helsinki-Vantaa

Monday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Wednesday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Thursday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Saturday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

Sunday

Alaska Airlines, American Airlines, British Airways, +2 more

Alaska Airlines, American Airlines, +3 more

See more direct flights
See more direct flights

Top 3 airlines serving from Helsinki to Seattle

 
See real verified KAYAK customer reviews for airlines flying from Helsinki to Seattle. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helsinki 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 1275 reviews
7.4Comfort
7.6Boarding
6.7Food
8.1Crew
6.9Entertainment
Airline reviews

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.

8.0 ExcellentAnonymous, Jan 2025DFW - CVG
Read more Finnair reviews

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.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Flight was delayed, short time connection to next flight but we make it, service was good, worth to fly just to try thair on board blueberry juce. Eccelent communication with airline.

My American Airlines flight was deleted and you guys never let me know

My experience was good overall, the quality of the food really decreased! There used to be a choice between meat and fish now it’s between chicken and pasta! In the choices of entertainment meditation has been added which is very good. Soft chair workout to improve blood circulation and avoid phlebitis should be added.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

Much better than the major US Carriers especially in Biz Class.

I wish that the meal included a vegetable or even a salad instead of couscous! Why serve chicken with rice AND couscous? Service was good overall though a bit lacking in friendliness. Usually on air france I've been offered a glass of champagne before dinner, wine with dinner, and a digestif after dinner. We were only offered wine this time!

It was not Air France but Air Europa. But confusion over our checked luggage. Whether it was checked all the way to Tenerife or not. It was not. Had to line up again in Departures. At least our Sky Priority was honoured. Flight was fine.

My wife and I had a row to ourselves after moving seats. There were no TVs and you had to buy food. So we did nothing but had a quick nap. Flight was fine.

The male attended that served are section was a snob. He did not answer my call light when my wine spilled all over the floor. I did not push it again or drew his attention to it. He just ignored the call light when he came to give us our meal, serving the people behind us first. I did not push it again or drew his attention to it to see his reaction. It was so obvious that he was ignoring us. We were in premium economy!

The plane was old Only 3 bathrooms available for economy The entertainment was old and the selection was poor

Georgian Airways check in staff initially denied us, because they thought passengers required transit visas to transfer on connecting flights. This required 70 minutes for them to call multiple people to confirm how transfers worked. They did not apologize once accepting our check in. Onboard, the four hour flight gave stale bread with spam slices as lunch. The only included drinks were still or sparkling water.

I did not get my baggage at my final destination..poor coordination with connecting flights with partner airlines (Saudi airways). Also the food was very mediocre.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

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