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HEL - SEA

Find cheap flights from Helsinki to Seattle from $372

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 6/4. 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
0 bags
Fri 6/7
Fri 6/14

Search 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
In the last 7 days travelers have searched 43,968,530 times on KAYAK, and here is why:

Save 21% or moreCompare multiple travel sites with one search.

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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.
Discover the best prices and deals for you by selecting your travel dates.
Choose your dates
1:40 pm - 12:25 pmHEL-SEA
32h 45m2 stops
2:15 pm - 8:20 amSEA-HEL
32h 05m3 stops
Tue, Jun 4 - Tue, Jun 11
1:40 pm - 12:25 pmHEL-SEA
32h 45m3 stops
2:15 pm - 8:20 amSEA-HEL
32h 05m3 stops
Tue, Jun 4 - Tue, Jun 11
12:00 pm - 8:35 pmHEL-SEA
18h 35m2 stops
3:50 pm - 6:35 pmSEA-HEL
16h 45m2 stops
$708Icelandair
Find Deal
Mon, Sep 16 - Mon, Sep 30
12:00 pm - 8:35 pmHEL-SEA
18h 35m2 stops
3:50 pm - 2:00 pmSEA-HEL
12h 10m1 stop
$762Icelandair
Find Deal
Mon, Sep 16 - Mon, Sep 30
6:40 am - 5:35 pmHEL-SEA
20h 55m1 stop
10:00 am - 4:40 pmSEA-HEL
20h 40m2 stops
$813Delta
Find Deal
Thu, Jun 6 - Thu, Jun 20
6:40 am - 5:35 pmHEL-SEA
20h 55m1 stop
10:00 am - 4:40 pmSEA-HEL
20h 40m2 stops
$814Delta
Find Deal
Thu, Jun 6 - Thu, Jun 20
4:00 pm - 11:05 pmHEL-SEA
17h 05m1 stop
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
$818American Airlines
Find Deal
Tue, Jun 4 - Tue, Jun 11
4:00 pm - 11:05 pmHEL-SEA
17h 05m1 stop
12:20 am - 10:45 amSEA-HEL
24h 25m1 stop
$843American Airlines
Find Deal
Tue, Jun 4 - Mon, Jun 10
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
$848Finnair
Find Deal
Thu, Jun 6 - Thu, Jun 20
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
$862Finnair
Find Deal
Thu, Jun 6 - Thu, Jun 20

Flights from Helsinki to Seattle - Travel Insights & Trends

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 flights from Helsinki to Seattle clicked on KAYAK for each day over the last 12 months.
If you are looking for a flight deal from Helsinki to Seattle, look for departures on Thursdays and avoid leaving on a Monday, as it's usually the priciest day. When flying back from Seattle, Wednesday is the cheapest day to fly and Monday is the most expensive.

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 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 February, where tickets cost $635 on average. On the other hand, the most expensive months are July and June, where the average cost of tickets is $1,195 and $980 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for 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 month.
To get a below average price on the flight from Helsinki to Seattle, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 57 days before departure.

Which airlines provide the cheapest flights from Helsinki to Seattle?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
In the last 72 hours, the best return deals on flights connecting Helsinki to Seattle were found on Turkish Airlines ($701) and Icelandair ($708). Icelandair proposed the cheapest one-way flight at $490.

Which airlines fly non-stop between Helsinki and Seattle?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Helsinki to Seattle.
There is just one airline that flies from Helsinki to Seattle direct and that is Finnair. The best one-way deal found from Finnair for the route is $806.

How many flights are there between Helsinki and Seattle per day?

Each day, there are 3 nonstop flights that take off from Helsinki and land in Seattle, with an average flight time of 9h 20m. The most common departure time is 4:00 pm and most flights take off in the afternoon. Each week, there are 9 flights and there are the same amount of flights each day 3.

Which cabin class options are there for flights between Helsinki and Seattle?

The average price of flights for each cabin class for the route found by users searching on KAYAK over the last 2 weeks.
There are 3 cabin class options for the route. These are Business, Economy and Prem Economy. Perform a search on KAYAK to find the latest prices and availability for all cabin fares, which differ across airlines.

How long does a flight from Helsinki to Seattle take?

Direct flights cover the 4,764 miles separating Helsinki to Seattle in about 9h 20m.

What’s the earliest departure time from Helsinki to Seattle?

Early birds can take the earliest flight from Helsinki at 4:40 pm and will be landing in Seattle at 4:00 pm.

What’s the latest departure time from Helsinki to Seattle?

If you prefer to fly at night, the latest flight from Helsinki to Seattle jets off at 4:40 pm and lands at 4:00 pm.

Good to know

Low season

January

High season

June

Cheapest flight

$372
Best time to beat the crowds but there is an average 4% increase in price.
Most popular time to fly with an average 13% 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 $372 for a one-way ticket and $671 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 A350-900 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 Tuesday, Thursday, and Saturday.

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

    The two airlines most popular with KAYAK users for flights from Helsinki to Seattle are Delta and Finnair. With an average price for the route of $817 and an overall rating of 8.0, Delta is the most popular choice. Finnair is also a great choice for the route, with an average price of $1,203 and an overall rating of 7.7.

  • 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.

See more FAQs

Top tips for finding a cheap flight from HEL to Seattle

  • Looking for a cheap flight? 25% of our users found flights on this route for $906 or less one-way and $964 or less round-trip.

Prefer to fly non-stop from Helsinki to Seattle?

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

Nonstop departures

Helsinki-Vantaa to Seattle/Tacoma Intl

Tuesday

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

See more direct flights

Nonstop returns

Seattle/Tacoma Intl to Helsinki-Vantaa

Tuesday

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

See more direct flights
See more direct flights

Top 5 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.
8.0
DeltaOverall score based on 10789 reviews
7.9Comfort
8.6Crew
8.2Boarding
7.4Food
8.0Entertainment
Airline reviews

Delta is one of the best airlines I have flown

10.0 ExcellentKellie, Apr 2024ANC - SEA
Read more about Delta reviews

Delta is one of the best airlines I have flown

It was a Red-Eye flight so was not comfortable enough to sleep, but seat was as expected. Crew was great and in-flight entertainment was excellent. Flight was smooth

Standard economy seats on Deltas 767 were better than Alaska premium seats on their 737 MAX9; more legroom, wider seats. Entertainment was great, no ipad or phone required. Could have included a meal service.

Plane was turned around due to fog half way into the flight, Delta did not properly direct passengers to stay on same flight and instead failed to properly rebook on Alaska

The boarding process was terrible especially with an indirect flight Chicago to Seattle to San Diego was terrible talking about we overbooked a flight idk if I’d take this airline ever again we got off our flight from Chicago to Seattle and we traveled for business and they told us our connecting flight was over booked and their was no seats asking people to take a delayed next flight and they don’t tell anyone coughing to wear masks seats 30A-B were terrible during the flight no one wants to sit next to people coughing all around I don’t want to be sick traveling for work or get sick anytime it’s very upsetting the staff doesn’t take this stuff serious to tell them to wear masks when they see people coughing and sneezing

Flight was on time, the crew was personable & professional, & the plane arrived early which was nice.

This flight landed early, but deplaned late. We were stuck sitting and waiting for a gate for over an hour

My flight was very clean and the location was comfortable. The service was great. A satisfying flight!

I appreciated being upgraded. I was very disappointed with my 13 hr layover in Seattle to geg, while my friends who flew Alaska made it home as scheduled. I had to reserve a hotel on my dime.

Delta needs to step up the meals and snacks. They have been serving the same two meals for three years.... It is time to change it up.

All good- I love BA and the professionalism of the crew and pilots.

Great flight- smooth, nice crew, nice clean aircraft, departed a little late but arrived 10 early.

It was listed on my ticket as Finnair but there was no indication that the flight was Finnair. In fact the number was even different. There were no employees there until exactly 2 hours before so we had to wait in line at Iberia and hope

Sorting on line would have been appreciated Onward information on flights missed No ability to get seating arranged before we got to gate Very unfriendly at gate

The flight was Finnair but there was no indications anywhere that the checkin was for Finnair also. There was no one to ask. I think at a minimum they should list the code shares so people don’t stand in the wrong line for an hour.

Flight ok, but me and other two passengers didn’t have connection with the entertainment in our seats. So, no movies, no games, no music… for 9 hours. The crew just told us that there’s nothing they can do but I noticed during the flight that there were empty seats, so they could have offered to us to change seats. Customer service could be better.

Finnair cancelled my flight 12 hours prior to leaving for Helsinki. They stated there were mechanical problems. I had to scurry around to find a new flight that would meet my needs for arrival in Helsinki. Luckily I was able to find alternate transportation through Lufthansa/United.

I’m very disappointed, to fly into an airplane for 10 straight hours, and not having a TV even though when I put the ticket I was told that I will have entertainment for the TV. Very disappointed.

Helpful steward. Allowed me to move to some empty seats and I was able to get some sleep. He also had milk for my tea. Americans don’t realise that cream or half and half ruin tea.

Very rude hostess. She embarrassed me in front of others. I went to sit after taking off in a different sit in the same economic cabin. Was the area where doors are. She come to me very laud and said: go back to your sit those sit are more expensive.wow! No diplomacy. Flight was super full except 3 of those sit. The only person in that row later during the flight occupied all sit laying down!. Once more disappointed at American Airlines. Early flight they lost my luggages for 4 days. Never refund money for replacement for some of essential items purchased..when I booked the flight I thought was Finlandair. I

Left from gate 30 minutes before flight. Never been late to a flight ever. It says 15 minutes before explicitly on the ticket.

I like the boarding process, it was fast. The seat doesn’t have a TV for a long flight and food wasn’t served, just snacks.

Left on time. Arrived early. Turbulence coming in and gate not open due to early arrival but expected.

Use planes with TVs on flights over 4 hours. The free entertainment was a cheap in between solution for a very long flight that you don't even bother providing meals or decent snacks.

Even though we left CMI late, we mostly made up the time.

Delayed almost 4 hours for a 45 minute flight with no explanation.

Again, multiple delays and I eventually just canceled and drove!

Great crew. We were delayed so that late passengers could get on the flight. Love the bedding in business class. Good food. Great experience.

The CX617 from HK to BKK was delayed more than 1.5 hours.

Horrible - they lied to me about baggage & boarding, even though I specifically spoke to their agents the day before my flight about my issue. When I showed up they did not let me board and stranded me at my airport until I bought a new flight with money I did not have to spend.

So Iceland Air is one step above Spirit Airlines. They do not feed you unless you pay for it or are in Saga Class. So, bring your food. They have a drink service, but it's in a large Dixie cup. Ask for the can, that is the only way you'll get a real drink. Also, we missed our connecting flight so they put us up in a flea-bag motel. Don't get me wrong, the staff was nice and friendly, however, there was no shower gel or shampoo in the hotel. We have to go to the corner store to pick some up. The room was not in great shape. Holes in the bathroom, a badly repaired ceiling in the room. The window was warn out. So, you get the just of how bad it was.

Food and staff were excellent. Seats on Saga (business class) are comparable to domestic first class of US Airlines, regarding space and recline. Entertainment options had little international component.

Flight delayed Delay to the gate upon arrival Baggage took more than an hour so we missed our connecting!!! Terrible experience!

There is no food without paying $. Only soft drinks are included in your fare.

Some drinks and basic snack will be good. Water should be served at least once an hour. Blankets for folks who might be cold.

Pros: "Flight was relatively empty. Professional crew, comfortable seats"
Cons: "I think they skipped me with food service. Checking up on passengers who may have been sleeping would be nice. Headphones need to be purchased. Limited entertainment options."
Cons: "Communication about international COVID requirements before the day of departure."
Pros: "My seat cushion was out of alignment so not great. But I like the two side seat configuration."
Cons: "Boarding is a zoo. Board by row. It’s faster."
Pros: "Icelandair crew were very hospitable and accompodating"
Cons: "I have never sat in such a narrow seat. Literally could not put my hand down the side to pull out my seat belt. Two days later I still have sores from where the side of the seats hit my hips. Did not even provide complimentary peanuts."
Cons: "Took far too long for drinks service into the flight. Almost 2 hours in before drinks came around to me"

Coach seats are too tight. Seem designed for small people. Food different but OK. Staff helpful.

my original flight was cancelled the previous day, and i was rescheduled onto this flight, which left much earlier in the morning, impacting my previous evening and requiring me to get up much earlier in the morning to get to the airport online. This practice happens way way way too much, and it seems on every airline, though AA is probably the worst.

Spending 10 hours on a flight with no video or wifi access due to issues per stewardess was not enjoyable nor acceptable. Will follow up directly with the airline as well

I really did not like being ordered to pull my shade down by the attendants. One of them was very rude to me about it, standing there until I closed it like I was a child brusquely reaching across me to close an adjoining one. They claim it was so people who wanted to could sleep. It’s a 10:30am flight not a red eye. Closing your shade or leaving it up for natural light should be a choice. Ruined my flight!

My baggage did not arrived with me. Took 3 days to get it after so may calls and follow up

The crew was very attentive and kept busy serving a variety of treats!

Terrible. Flight was 3 hours delayed and I missed my other flight to my final destination

Offered vegetable curry when it was actually tofu which I don’t care for.

The flight was good the crew excellent…but take off delayed three hours!!!

Both mine and my husband's chairs were broken. Also it took 2 hours to get our bags after our flight which was wild.

Book cheap flights from Helsinki to Seattle

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Helsinki to Seattle found on KAYAK in the last 72 hours.
6/4Tue
3 stops
39h 10mHEL-SEA
$372
6/6Thu
3 stops
33h 15mHEL-SEA
$387
6/5Wed
2 stops
18h 35mHEL-SEA
$403
6/18Tue
2 stopsIcelandair
18h 35mHEL-SEA
$490
8/13Tue
1 stopIcelandair
15h 30mHEL-SEA
$513
8/13Tue
nonstopAmerican Airlines
9h 20mHEL-SEA
$735
6/6Thu
nonstopAmerican Airlines
9h 20mHEL-SEA
$736
7/7Sun
2 stopsFinnair
23h 53mHEL-SEA
$1,200
6/25Tue
nonstopFinnair
9h 20mHEL-SEA
$1,509
6/25Tue
1 stopDelta
14h 40mHEL-SEA
$1,563

Search by stops

Search by airline

Search by price

Last minute flights from Helsinki to Seattle

Last minute flight, train and bus deals

 
These last-minute flight deals are the cheapest flights found on KAYAK in the last 72 hours for flights from Helsinki to Seattle that are departing in the next 10 days.
5/11Sat
multi-stop
16h 30mHEL-SEA
5/28Tue
multi-stop
14h 20mSEA-HEL
$913
5/13Mon
multi-stop
35h 05mHEL-SEA
5/20Mon
multi-stop
22h 05mSEA-HEL
$917
5/11Sat
multi-stop
18h 34mHEL-SEA
5/28Tue
multi-stop
19h 05mSEA-HEL
$924
5/13Mon
multi-stopUnited Airlines
26h 33mHEL-SEA
5/20Mon
multi-stopUnited Airlines
32h 46mSEA-HEL
$931
5/13Mon
multi-stop
26h 00mHEL-SEA
5/20Mon
multi-stop
19h 05mSEA-HEL
$933
5/13Mon
multi-stop
26h 05mHEL-SEA
5/20Mon
multi-stop
17h 30mSEA-HEL
$958
5/11Sat
multi-stopDelta
19h 29mHEL-SEA
5/28Tue
multi-stopDelta
18h 50mSEA-HEL
$965
5/11Sat
multi-stopAmerican Airlines
31h 25mHEL-SEA
5/27Mon
multi-stopAmerican Airlines
23h 30mSEA-HEL
$1,082
5/13Mon
multi-stopAmerican Airlines
16h 56mHEL-SEA
5/19Sun
multi-stopAmerican Airlines
23h 30mSEA-HEL
$1,226
5/11Sat
multi-stop
30h 20mHEL-SEA
5/28Tue
multi-stop
34h 45mSEA-HEL
$1,315

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Helsinki - Seattle Flights

Departure:

Helsinki (undefined)Finland

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Helsinki

Cabin classes:

$1,590
$925