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SEA - HEL

Find cheap flights from Seattle to Helsinki from $464

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Seattle to Helsinki departing on 6/16. 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
Wed 6/12
Wed 6/19

Search hundreds of travel sites at once for deals on flights to Helsinki

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Helsinki.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Seattle to Helsinki.
In the last 7 days travelers have searched 41,771,603 times on KAYAK, and here is why:

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Cheap flight deals from Seattle to Helsinki (SEA-HEL)

Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Seattle to Helsinki 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
10:49 pm - 2:00 pmSEA-HEL
29h 11m2 stops
3:05 pm - 8:55 pmHEL-SEA
15h 50m2 stops
$946Icelandair
Find Deal
Sat, Aug 10 - Sat, Aug 31
7:00 am - 11:50 pmSEA-HEL
30h 50m3 stops
9:45 pm - 8:21 pmHEL-SEA
32h 36m3 stops
Thu, Jun 6 - Sun, Jun 16
1:29 pm - 2:15 pmSEA-HEL
14h 46m1 stop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$1,066American Airlines
Find Deal
Sun, Aug 4 - Sat, Aug 17
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
12:25 pm - 7:23 pmHEL-SEA
16h 58m1 stop
$1,072Finnair
Find Deal
Sat, Aug 10 - Sat, Aug 31
1:35 pm - 4:40 pmSEA-HEL
17h 05m1 stop
6:40 am - 5:40 pmHEL-SEA
21h 00m1 stop
$1,085Delta
Find Deal
Wed, Jun 26 - Fri, Aug 30
1:35 pm - 4:40 pmSEA-HEL
17h 05m1 stop
6:40 am - 11:20 amHEL-SEA
14h 40m1 stop
$1,086Delta
Find Deal
Sun, Jul 28 - Sun, Aug 11
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$1,089American Airlines
Find Deal
Thu, Jul 4 - Thu, Jul 18
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$1,103Finnair
Find Deal
Thu, Aug 1 - Thu, Aug 15
7:40 pm - 11:00 pmSEA-HEL
17h 20m1 stop
8:00 am - 5:45 pmHEL-SEA
19h 45m1 stop
$1,124British Airways
Find Deal
Sun, Jul 28 - Fri, Aug 16
7:40 pm - 11:00 pmSEA-HEL
17h 20m1 stop
11:25 am - 9:56 pmHEL-SEA
20h 31m2 stops
$1,148British Airways
Find Deal
Sun, Jul 28 - Sun, Aug 11

Flights from Seattle to Helsinki - Travel Insights & Trends

Get data-powered insights and trends into flights from Seattle to Helsinki 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 Seattle to Helsinki?

The average price of all flights from Seattle to Helsinki clicked on KAYAK for each day over the last 12 months.
When flying from Seattle to Helsinki, you should consider leaving on a Wednesday and avoid Mondays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Thursdays and the most expensive ones on Mondays.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for flights from Seattle to Helsinki, 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 Seattle to Helsinki is February, where tickets cost $689 on average. On the other hand, the most expensive months are June and July, where the average cost of tickets is $1,382 and $1,232 respectively.

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

To calculate daily average prices, KAYAK takes all prices for each day before departure over the last year for flights from Seattle to Helsinki, 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 Seattle to Helsinki, you should book around 2 days before departure. For the absolute cheapest price, our data suggests you should book 51 days before departure.

Which airlines provide the cheapest flights from Seattle to Helsinki?

The cheapest price for the route for each airline clicked by KAYAK users in the last 72 hours.
The best deals for a one-way ticket found by KAYAK users over the last 3 days were on Icelandair ($658) and Delta ($740). The cheapest round-trip tickets were found on Icelandair ($946) and Turkish Airlines ($1,054).

Which airlines fly non-stop between Seattle and Helsinki?

Airline and price data is aggregated from results in KAYAK’s search results from the last 2 weeks for flights from Seattle to Helsinki.
There is just one airline that flies from Seattle to Helsinki direct and that is Finnair. The best one-way deal found from Finnair for the route is $775.

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

Each day, there are 3 nonstop flights that take off from Seattle and land in Helsinki, with an average flight time of 9h 15m. The most common departure time is 5:00 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 Seattle and Helsinki?

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 Seattle to Helsinki take?

A direct flight to Helsinki will take on average 9h 15m to travel the 4,764 miles flying distance from Seattle.

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

Early birds can take the earliest flight from Seattle at 5:40 pm and will be landing in Helsinki at 12:55 pm.

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

If you prefer to fly at night, the latest flight from Seattle to Helsinki jets off at 5:40 pm and lands at 12:55 pm.

Good to know

Low season

January

High season

July

Cheapest flight

$464
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 22% increase in price.
Flight from Seattle to Helsinki

When to book flights from Seattle to Helsinki

Are your dates flexible? Find out the best times to travel from Seattle to Helsinki 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 Seattle to Helsinki

  • What is the cheapest flight from Seattle to Helsinki?

    In the last 3 days, the lowest price for a flight from Seattle to Helsinki was $464 for a one-way ticket and $946 for a round-trip.

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

    Yes, you’ll need a passport to travel to Helsinki from Seattle.

  • Which airlines offer Wi-Fi service onboard planes from Seattle to Helsinki?

    United Airlines, and Lufthansa offer inflight Wi-Fi service on the Seattle to Helsinki flight route.

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

    The Airbus A350-900 is the aircraft model that flies most regularly on the Seattle to Helsinki flight route.

  • Which airline alliances offer flights from Seattle to Helsinki?

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

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

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

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

    The two airlines most popular with KAYAK users for flights from Seattle to Helsinki are Delta and Finnair. With an average price for the route of $987 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 $1,192 and an overall rating of 7.7.

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

    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 Seattle to Helsinki.

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from 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 from Seattle to Helsinki?

    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 Helsinki with an airline and back to Seattle with another airline. Booking your flights between Seattle and HEL 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 Seattle to Helsinki?

    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 Helsinki from Seattle 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 SEA to Helsinki

  • Looking for a cheap flight? 25% of our users found flights on this route for $697 or less one-way and $893 or less round-trip.

Prefer to fly non-stop from Seattle to Helsinki?

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

Nonstop departures

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

Nonstop returns

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
See more direct flights

Top 5 airlines serving from Seattle to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from Seattle to Helsinki. 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 Seattle to Helsinki? 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 10736 reviews
7.9Comfort
8.0Entertainment
7.4Food
8.2Boarding
8.6Crew
Airline reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

10.0 ExcellentSash, May 2024SEA - HNL
Read more about Delta reviews

The plane from SNA wouldn’t start after 5 tries. The team gave me an option of flying direct from LAX and giving me a Lyft ride there! Perfect!

Had a broken tray in business class. Crew just shrugged it off.

Everything was great except for the seat. The backrest would not stay in the upright position.

public website still broken for years randomly blocking browsers with privacy options active after loading a page maybe once. check-in on laptop was almost impossible but eventually randomly worked. had to print pass at airport since couldn't get back in to load digital pass on mobile firefox or chrome. red eye flight so smooth onboarding, plenty of room to spread out, easy offboarding. onboard wifi instructions mention vpn can cause problems connecting but fails to also mention private dns. no printed or built in menu list, seems weird to require personal device to point at qr code link for menu which does not even allow direct ordering. people with health condition risk related dietary restrictions trying to avoid for example cholesterol and sugar are left guessing what they can order either way without nutritional info highlights (cranberry juice was minute maid cocktail with as much suger as typical can of soda). tap to pay wasn't working and always seems sketchy to manually enter card info. good movie variety, so limited tv was okay.

Bag drop off was slow and annoying. Only 2 agents at the entire delta desk, and no one directing traffic for what line to be in, many confused people slowed down the process. Boarding was fine. Seats in Delta comfort plus were fine. Snacks were great! Definitely a bonus. The entertainment system was awful — old, slow, not responsive, and completely unable to play games due to some kind of error. But on the other hand, thank you to Delta for the free WiFi. That made it better.

Flight diverted in SD. Later take off in Seattle by 1.3hrs

Mi primera conexión se retrasó por lo cual perdí mi segunda conexión la cual salió adelantada

Crew was not friendly when I went to request a seat change.

There were choices for the snacks. Good choices and tasty lunch and breakfast as well.

The flight crew was amazing. I’m very tall and they moved me to an exit row unsolicited!!! Amazing service.

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.

I booked the flight with Finnair, which made the arrangements for downloading a boarding pass unnecessarily complicated. I wouldn't do that again. Instead I'd book direct with AA.

Had a nice flight to London on BA will fly with them again in the future

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.

Liked - nothing. Disliked - delayed 35+ min sitting on the plane. Caused me to miss my connection in Charlotte. American Airlines is the worst US Air Carrier company with atrocious customer service.

Worst situation ever! I booked my tickets for this trip on Alaska Airlines. I guess AA is a partner and we flew nonstop from Eugene to PHX on an AA jet. I had to pay for luggage from PHX to EUG. And this was an Alaska Airlines reservation paid for with Alaska airlines credit card! Got to the PHX airport and was not able to check bags because of some weird issue with the AA software. My reservation had to be the-entered by the agent. I will never pick another American Airlines flight on the Alaska Airlines website. While on vacation, I tried to upgrade our seats for the trip home. The request just buffered and never went through. I tried four times and was charged four times on my credit card. The card was charged but the seats were never changed. What a wreck!

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.

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. Very comfortable business seats with nice bedding. Good food. We were delayed to let late passengers on the flight, but otherwise great experience.

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

Decent service - nice seats. Crew were not overly attentive but can’t complain overall for the money

Very nice flight, easy connections in Keflavík, and friendly crew.

I will never fly this airline again. Checking in was poor , we had to go back to the check in counter at Raleigh - Durham international airport three times because they didn’t issue my boarding pass but rather duplicated my husband’s twice which caused a big headache at the passport control at the airport which triggered security alert and wouldn’t let us pass through we we had to wait for long time to be able to explain and clear everything after talking to the supervisor.. No food on the plane , not even crackers. No food was offered to buy ether . No ear phone was provided . Very little time to make from one plane to another and nobody to assist with smooth transition. Flight itself , we felt safe so thank you to the pilots . But customer service was terrible . We spent $ 2500 on 2 tickets, so I cannot say that service was consistent with the price .

Seats are way too much now with these new airplanes especially long flights like we had. I was 7 month pregnant and in a lot of discomfort due to small seats.

Food was horrible. This wasn’t business class. No leg space, can’t sleep in row position, huge delay

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

The plane was flaming hot! Could not breathe. Everyone coughing from heat. Awful.

My biggest problem was the flight from KEF to DUB was delayed, which caused me to miss my connecting flight in DUB and we were forced into an unplanned 10-hour layover in DUB. Crew and boarding staff were all very friendly but this was a real inconvenience and especially uncomfortable for my disabled wife.

Not much! This was my first flight with Iceland air and unfortunately it wasn’t what I have expected. My luggage is lost nothing as of yet where it was left. Not a good service at all!!

The seat size was more like a domestic than an international flight. In fact, i would compare the ammenities, quality and service to a short hall ryan air flight, which was unexpected for an international flight. The plane was extremely hot so sleeping was difficult. My biggest complaint was that they are very strict on carry on luggage only allowing it to weigh 10kg/22lb. I try to limit myself to a carryon so i don't have to mess with bagage claim, but the wieght restriction made it impossible. I have never had a carry on weight restriction (at least enforced) on an international flight. Will not be including them in future searches.

Better food and more space in the seats. Also when doing the web check in both times I was going in to your site the minute you open it and there is not really many seats to choose only to buy!!!

It was ok, not as good as it used to be. The Heathrow connection was a disaster - complete anarchy, unknowledgable and skimpy assistance and signage. Gate crew at next flight was great, held the flight while my wife struggled through security.

It was great! The seats were comfortable, and they fed me during the transatlantic flight, something which I have been missing out on for the past 3 years as I travel to and from school.

This flight was cancelled at the last minute. We were rebooked on another flight but a day later. We lost a day of our vacation and paid for a night in a hotel we couldn’t use. The flights we were rebooked on (both American) messed up our seating on both flights-we didn’t get the seats we had paid for. All in all, a terrible experience.

Lost our bags in Heathrow, We didn’t receive bags in Mallorca for 3 days, out of a 7 day cycling vacation. Really inconvenient and disappointing!

We missed the flight to Barcelona because the flight from Baltimore was delayed. We flew on Vueling VW6653. Our luggage didn’t arrive. Please help us get our luggage. We are staying at Hotel Gran Via in Barcelona

The seats were tiny, being of a fairly petite build, I don’t usually expect to feel crammed and cramped in a seat, but I definitely was on this flight. I couldn’t even bend over to get anything out from under the seat in front and getting up to go to the bathroom at night with the seat backs reclined was nearly impossible. I had to do gymnastics to get over and out. For an airline that does long flights overnight, it’s kind of ridiculous.

Full flight. Seat 8 F. I don't usually have the business class seat at the last row. Feel awkward for the stewardess crossing over the person sitting on aisle. Nothing to complain, especially, the airline stewardess really tried to accommodate such situation. It is just an awkward seat.

Not connecting flights. Missed my flight from Dublin to Liverpool because I arrived at Dublin one hour too late. For this mistake, they offered me a flight from Dublin to Manchester. Thats great and all, but I waste time and money to commute to Liverpool. Be sure to check the time of your connecting flights, because they sure don’t when they sell it to you

Excellent! Great flight attendants, good food (in business class, at least), very comfortable. Touchscreen and remote wasn’t great.

Book cheap flights from Seattle to Helsinki

Recent one-way flight deals

 
Only flying one-way? Below are some of the best one-way flight deals from Seattle to Helsinki found on KAYAK in the last 72 hours.
6/16Sun
3 stops
30h 55mSEA-HEL
$464
6/17Mon
2 stops
20h 46mSEA-HEL
$510
6/4Tue
2 stops
23h 34mSEA-HEL
$520
6/4Tue
1 stopIcelandair
12h 10mSEA-HEL
$658
6/17Mon
1 stopIcelandair
29h 00mSEA-HEL
$692
6/12Wed
1 stopDelta
17h 05mSEA-HEL
$740
6/22Sat
1 stopDelta
17h 05mSEA-HEL
$790
6/18Tue
nonstopAmerican Airlines
9h 15mSEA-HEL
$1,078
6/29Sat
nonstopFinnair
9h 15mSEA-HEL
$1,122
6/16Sun
1 stopAmerican Airlines
23h 31mSEA-HEL
$1,159

Search by stops

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Last minute flights from Seattle to Helsinki

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 Seattle to Helsinki that are departing in the next 10 days.
5/16Thu
multi-stopDelta
17h 05mSEA-HEL
6/3Mon
multi-stopDelta
20h 55mHEL-SEA
$1,110
5/16Thu
multi-stopDelta
18h 40mSEA-HEL
6/3Mon
multi-stopDelta
14h 40mHEL-SEA
$1,115
5/16Thu
multi-stopDelta
18h 40mSEA-HEL
6/3Mon
multi-stopDelta
22h 16mHEL-SEA
$1,125
5/15Wed
multi-stopAmerican Airlines
23h 30mSEA-HEL
6/3Mon
multi-stopAmerican Airlines
21h 50mHEL-SEA
$1,513
5/15Wed
multi-stopAmerican Airlines
26h 45mSEA-HEL
6/3Mon
multi-stopAmerican Airlines
37h 30mHEL-SEA
$1,527
5/15Wed
multi-stopAmerican Airlines
23h 30mSEA-HEL
6/3Mon
multi-stopAmerican Airlines
16h 56mHEL-SEA
$1,538

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Seattle - Helsinki Flights

Departure:

Seattle (undefined)United States

Destination:

Helsinki (HEL)Finland

Return flight deals:

Helsinki - Seattle

Cabin classes:

$3,219
$1,913
$643

Browse destinations: