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SEA - HEL

$364 Find cheap flights from Seattle to Helsinki

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 9/6. 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 7/10
Wed 7/17

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 42,898,604 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
11:20 am - 4:15 pmSEA-HEL
18h 55m2 stops
5:30 pm - 9:10 pmHEL-SEA
36h 40m2 stops
Tue, Oct 8 - Sun, Oct 27
6:30 am - 10:35 amSEA-HEL
18h 05m2 stops
11:15 am - 10:00 pmHEL-SEA
20h 45m2 stops
Wed, Aug 21 - Mon, Aug 26
11:52 am - 4:15 pmSEA-HEL
18h 23m2 stops
11:15 am - 9:00 pmHEL-SEA
19h 45m2 stops
Wed, Sep 18 - Tue, Oct 8
1:43 am - 10:50 amSEA-HEL
23h 07m1 stop
12:25 pm - 7:03 pmHEL-SEA
16h 38m1 stop
$748American Airlines
Find Deal
Mon, Nov 11 - Mon, Nov 18
6:55 pm - 6:50 amSEA-HEL
25h 55m1 stop
3:05 pm - 11:20 amHEL-SEA
30h 15m1 stop
$756Icelandair
Find Deal
Mon, Aug 19 - Tue, Aug 27
1:43 am - 10:50 amSEA-HEL
23h 07m1 stop
12:25 pm - 12:01 amHEL-SEA
21h 36m2 stops
$761American Airlines
Find Deal
Mon, Nov 11 - Mon, Nov 18
1:35 pm - 4:40 pmSEA-HEL
17h 05m1 stop
7:00 am - 7:23 pmHEL-SEA
21h 23m2 stops
$763Delta
Find Deal
Tue, Oct 8 - Sun, Oct 27
11:00 pm - 6:50 amSEA-HEL
21h 50m1 stop
7:50 am - 11:20 amHEL-SEA
13h 30m1 stop
$765Icelandair
Find Deal
Mon, Jul 29 - Mon, Aug 26
9:55 am - 4:40 pmSEA-HEL
20h 45m2 stops
6:40 am - 5:50 pmHEL-SEA
21h 10m1 stop
$844Delta
Find Deal
Wed, Aug 28 - Tue, Sep 3
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$1,482Finnair
Find Deal
Sat, Jun 29 - Tue, Jul 30

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 Thursdays if you are looking for the best rates. For your return to Seattle, you’ll find the best rates on Wednesdays 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 $1,364 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 Air Canada ($911) and American Airlines ($1,278). The cheapest round-trip tickets were found on British Airways ($685) and Lufthansa ($709).

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 $778.

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

$364
Best time to beat the crowds with an average 9% drop in price.
Most popular time to fly with an average 23% 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 $364 for a one-way ticket and $623 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 $988 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 $1,174 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

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

  • Looking for a cheap flight? 25% of our users found flights on this route for $636 or less one-way and $978 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 10295 reviews
7.4Food
7.9Comfort
8.0Entertainment
8.2Boarding
8.6Crew
Airline reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

4.0 OkayDavwinder Singh, Jun 2024SEA - ATL
Read more about Delta reviews

Really bad baggage handling. Had my Rimowa bag badly damaged at the latches.

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.

Not great. Flight attendants were aloof, food was mediocre, seats that I paid $150 were given to someone else without any concession. I will probably never use kayak again. Terrible experience from start to finish.

The wine was low quality Finnair label stuff in small bottles and only one small bottle each. Embarassinng. A competing airline served me two generous glasses of a nice South African Shiraz from regular wine bottles, a Beck's beer, and a generous Dewar's White Label on the rocks. Cabin service was good and polite, plane interior was beautiful, but cramped.

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.

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.

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

This is by far the worst experience I have had with American Airlines. The start of this trip was a complete disaster. I purposely planned my trip so that I would weather any delays so that I could make very important meeting at the Pentagon. My flight was cancelled because of maintenance and I was put on the first flight the next day but I was late to the meeting. After a long week at the Pentagon I just wanted to go home and my flight home which was early in the day was delayed. Eventually the flight was delayed until the next day. I was not authorized a hotel room because DCA was my point of origin. So I paid for a hotel out of pocket. The flight this morning was boarded then deplaned because the aircraft was hot. The flow of information was not happening in DCA and made it worse when the news was bad. I am going to take a break from American for my next few military flights. Hopefully whatever has been going on with American Airlines will be resolved.

We had a 2 hour delay. The seats were smaller than most other airlines. The person in front of us wanted to lay back and we had to stop her because she was pressing against my girlfriend’s legs. We had to ask her to sit up and not lay back due to the lack of room.

Information when booking said the flight would be with American Airlines but the flight was actualy with British Airways. Check in from Orlando was nice and quick. I agreed to put my cabin case in the checked luggage as it was a full flight. Case came back damaged (unable to put the handle down) so will have to dispose of it. Seats were quite cramped with very little leg room, even for economy. This was the experience of both the outgoing and return flight. Cabin crew were ok and flight time was punctual.

Everything was fine once we actually got on our flight. It was more then annoying they canceled (delayed) our flight. We lost out on a day of our trip along with money on our stay. Plus we had to book another hotel. So expensive.

This flight was canceled and delayed several times without explanation. The plane was freezing cold and no wifi for messaging. Getting off the plane was terribly unorganized and felt like it took forever….

The flight was delayed several times without explanation. The seats were terribly uncomfortable and wifi isn’t included. All these make for a less than ideal flight.

The flights was delayed by hours and it was the firmest landing I have experienced in my life. My back is still sore.

Internet service was erratic. Crew service was poor and slow. My luggage on this non-stop flight was lost and not recovered

Terrible. I didn’t fly and I had an important meeting the next day.

Missed this flight due to the first AA flight delay

My experience with Icelandair was just ok, nothing special. Requested wheelchair service for my wife and none was offered at checking in Baltimore or available for her upon arrival at Gatwick airport in London.

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!!

Economy class has no legroom so if you have the money worth to upgrade! Food was absolutely horrible! The crew was super nice!!!!!

The flight was provided by Aer Lingus and our seats were in a poor condition (15A & 15C). They looked like they needed repairing/replacing and were uncomfortable for such a long flight. Also the arm rests on Aer Lingus planes do not lift more than around 45 degrees, instead of the usual 90 degrees upright, meaning you cannot maximum the space between you & your travel companion so as to be more comfortable for such a long flight.

Flights were actually with Aer Lingus outward and American Airlines & Aer Lingus on the return journey. Outward flight with Aer Lingus was good but the return flight with them was not so good as our seats were in a poor condition (15A & 15C) and looked like they needed replacing! The American Airlines flight from Miami to JFK New York was good and the seats were very comfortable and spacious (32D & 32E)

Awful. Delay, lost vacation time and travel time now more than 24h

Awful. Flight delayed and we missed our long flight to Rome. It has been a nightmare and we have still not arrived. It was NOT a weather delay, just poor planning by AA

Boarding was as fast and efficient as possible. The flight crew were amazing and extremely friendly. We enjoyed our flight.

Very bed boarding, there was overbooked and make a lot of problems and noises

There was a problem in the luggage because there were not porters

On my way from Chicago to London, I was seated next to a quite heavy passenger. I could barely move. BA should have ensured that overweight customers are placed in comfortable seats and not to penalize also other passengers because BA is not willing to accommodate these passengers and their needs. No respect at all.

The flight as far as timings go was excellent. Unfortunately we ended up sat with someone on a night flight who had been drinking alcohol before boarding and BA staff were happily serving him more alcohol. He was very drunk which made our flight uncomfortable and awkward. My partner had this person lying on him whilst asleep. Alcohol should be served minimally. If there had been an emergency this person would not have been in a fit state to act accordingly.

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.
9/6Fri
2 stops
28h 11mSEA-HEL
$364
9/6Fri
3 stops
28h 11mSEA-HEL
$395
9/6Fri
1 stop
19h 05mSEA-HEL
$694
6/25Tue
1 stop
14h 20mSEA-HEL
$830
6/25Tue
2 stopsAir Canada
17h 35mSEA-HEL
$911
6/29Sat
2 stopsAir Canada
37h 40mSEA-HEL
$933
6/24Mon
2 stopsAmerican Airlines
27h 55mSEA-HEL
$1,278
6/25Tue
nonstopIberia
9h 15mSEA-HEL
$1,299
6/24Mon
1 stopAmerican Airlines
23h 31mSEA-HEL
$1,446
6/29Sat
nonstopIberia
9h 15mSEA-HEL
$1,459

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.
6/12Wed
multi-stopAir France
17h 05mSEA-HEL
6/26Wed
multi-stopAir France
20h 55mHEL-SEA
$1,023
6/12Wed
multi-stopDelta
20h 10mSEA-HEL
6/26Wed
multi-stopDelta
20h 55mHEL-SEA
$1,040
6/12Wed
multi-stopAir Canada
19h 35mSEA-HEL
6/26Wed
multi-stopAir Canada
32h 06mHEL-SEA
$1,208
6/12Wed
multi-stopAir Canada
17h 35mSEA-HEL
6/26Wed
multi-stopAir Canada
26h 15mHEL-SEA
$1,222
6/11Tue
multi-stopAmerican Airlines
26h 46mSEA-HEL
6/26Wed
multi-stopAmerican Airlines
23h 57mHEL-SEA
$1,517
6/11Tue
multi-stopAmerican Airlines
26h 46mSEA-HEL
6/26Wed
multi-stopAmerican Airlines
37h 53mHEL-SEA
$1,810
6/12Wed
multi-stopIcelandair
12h 10mSEA-HEL
6/18Tue
multi-stopIcelandair
18h 35mHEL-SEA
$3,014
6/12Wed
multi-stopIcelandair
12h 10mSEA-HEL
6/18Tue
multi-stopIcelandair
15h 30mHEL-SEA
$3,268
6/12Wed
multi-stopFinnair
20h 50mSEA-HEL
6/18Tue
nonstopFinnair
9h 20mHEL-SEA
$6,666
6/12Wed
multi-stopFinnair
30h 50mSEA-HEL
6/18Tue
nonstopFinnair
9h 20mHEL-SEA
$7,359

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Seattle - Helsinki Flights

Departure:

Seattle (SEA)United States

Destination:

Helsinki (HEL)Finland

Return flight deals:

Helsinki - Seattle

Cabin classes:

$2,966
$1,960
$778

Browse destinations: