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HEL - SEA

$428 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 10/24. 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
Sat 6/29
Sat 7/6

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 42,686,544 times on KAYAK, and here is why:

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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
12:30 pm - 10:30 amHEL-SEA
32h 00m1 stop
6:40 pm - 11:35 amSEA-HEL
30h 55m1 stop
$697Turkish Airlines
Find Deal
Mon, Sep 16 - Thu, Oct 3
12:50 pm - 8:35 pmHEL-SEA
17h 45m2 stops
3:50 pm - 7:40 pmSEA-HEL
17h 50m2 stops
$701Icelandair
Find Deal
Tue, Sep 17 - Fri, Oct 4
6:40 am - 11:20 amHEL-SEA
14h 40m1 stop
9:53 am - 4:40 pmSEA-HEL
20h 47m2 stops
$801Delta
Find Deal
Tue, Sep 17 - Fri, Oct 4
7:00 am - 6:04 pmHEL-SEA
21h 04m2 stops
1:35 pm - 4:40 pmSEA-HEL
17h 05m1 stop
$822Delta
Find Deal
Wed, Sep 18 - Sat, Oct 5
3:55 pm - 12:31 pmHEL-SEA
30h 36m1 stop
1:25 pm - 2:15 pmSEA-HEL
14h 50m1 stop
$875American Airlines
Find Deal
Wed, Jun 19 - Wed, Jun 26
3:55 pm - 12:31 pmHEL-SEA
30h 36m1 stop
10:52 pm - 2:15 pmSEA-HEL
29h 23m1 stop
$902American Airlines
Find Deal
Wed, Jun 19 - Mon, Jun 24
12:25 pm - 9:56 pmHEL-SEA
19h 31m1 stop
3:45 pm - 9:00 pmSEA-HEL
19h 15m2 stops
$904British Airways
Find Deal
Sun, Sep 15 - Tue, Oct 1
12:25 pm - 7:30 pmHEL-SEA
17h 05m1 stop
1:25 pm - 6:25 pmSEA-HEL
19h 00m2 stops
$913British Airways
Find Deal
Fri, Sep 13 - Sat, Oct 5
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
$1,092Finnair
Find Deal
Thu, Jun 13 - Sat, Jun 29
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
$1,093Finnair
Find Deal
Thu, Jun 13 - Sat, Jun 29

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 Saturdays 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 $1,201 and $981 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 48 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 ($697) and Icelandair ($701). Icelandair proposed the cheapest one-way flight at $428.

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 $838.

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

$428
Best time to beat the crowds but there is an average 3% 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 $428 for a one-way ticket and $697 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 $1,185 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

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 $808 or less one-way and $929 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 10457 reviews
7.4Food
8.0Entertainment
7.9Comfort
8.2Boarding
8.6Crew
Airline reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

10.0 ExcellentDonald, May 2024FLL - SEA
Read more about Delta reviews

Delta crushed it. Flight attendant in first was attentive and just never stopped. Honestly one of the best domestic flights I’ve been on.

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.

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

The boarding process and flight were great. However, I waited about 40 minutes for my luggage. It did not come up on the designated belt. Instead, everyone’s bags were on a cart. Not sure what the issue was, but we were not informed until another passenger went looking for her bags and found them.

There were delays on both ends. It made it less than excellent. This plane was great though

AA1537 the AC was not working properly. It was very hot and uncomfortable.

Worst experience flying American Airlines. I fly with them often, so I was super disappointed in the service I received at gate 30 in LGA on May 24, mid-day. The flight was delayed twice. I was patiently waiting in the American Airlines lounge when I received the notice on my app that the plane was boarding 45 minutes before its newly re-scheduled take off of 4 pm (from the orginal 1:45 pm then 3:00 pm). It took me 5 min to travel from the lounge to the gate and when I arrived there at 3:20 flight gate attendant told me the flight had closed and that they announced for passengers multiple times. I showed them the notification on my app and they were really rude and unempathetic. The person who rescheduled my flight at customer service wasn't any happier but was at least helpful in getting me on the next flight.

Flight was 1/2 hour delayed leaving Phoenix. Otherwise it was an average flight. Flight crew on this trip was very nice.

Everything was great except for the wifi was junk. Crew was super friendly and helpful

Was lucky to have a employee at the AA checkin counter that had compassion and understood they ordeal that we went through with our original flight being diverted, needing to stay in the aircraft and then flying to the original destination; adding hours to the trip and forcing us to miss our connection and our rebooked connection. She was able to get up on standby on the highest priority on the next flight to the closest airport we need to be at and it all worked out despite being many hours late.

We were redirected to a near by city due to weather and had to stay in the aircraft before flying to the original destination's airport. The whole delay added 3+ hours and were were not offered any snacks or water.

I wish that we wouldn't have to go through TSA again on connecting flights.

Priority baggage, golf bag lost causing me to miss function the next day. Baggage in general in Charlotte has been a mess lately.

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"

My worst flying experience so far. This flight was delayed a total of 42 hours and diverted to New York before it was finally cancelled. It was delayed 4 and a half hours in London. As we were scanning our boarding passes at the gate they advised that the flight was being diverted to JFK since the delays caused us to missed the open hours for Charlotte international customs and immigration. We were assured multiple times by airport personnel, flight attendants, and the Pilot that we would land at JFK go through customs and immigration and then reboard the plane to fly to Charlotte in the same night. When we landed in New York the pilot advised us as we were retrieving our carry on luggage that we were delayed till 10am the next morning and to see guest services to get a room for the night. During this time I had to purchase a room for a family member in Charlotte which drove over 4 and a half hours to pick us up from Charlotte. This could have been avoided if American Airlines had been up front about the delay. Then after standing in line for over 2 and a half hours at guest services we were taken by taxi to a hotel 30 minutes out of the way. Luckily I looked for other flights that night and found one at 8 am to get on. The initial flight which we were scheduled to fly to charlotte in was delayed 12 more times and was finally cancelled 42 hours after it was supposed to land. I am unaware of what happened to the guest that were supposed to fly on the flight after we were placed on another flight but 42 hours in delays for a direct flight is absolutely ridiculous.

The boarding to Gatwick was a breeze but the boarding from Gatwick was a nightmare. The onboard service to Gatwick had a lot to be desired but the onboard sevice from Gatwick was amazing ! Very nice,friendly and funny ! Would I recommend BA to anyone.? ! Yes I would!

Is it American Airlines or British Airways? This is so confusing. I got it from Portugal.

Appreciate free wine and entertainment plus good meals. Also leg room

Really quick check in and security at Heathrow Terminal 5. Staff on board were lovely and very friendly. Could have provided a few more drinks on the flight but they were available at the back of the plane.

they are improving. The crew from Charlotte to Tampa was outstanding. SMILING and trying to be helpful with the customers.

It was a flight operated by Aer Linus for BA and the plane and crew were very good but the food selection was average.

I like the food this time compared to my departure. I’m seated at the isle so it’s comfortable but I have to pay $124 for seat selection

Flight delayed an hour due to plane maintenance issues after getting in line to board. Issue was plane galley ovens which eliminated hot meals for overseas flight. Cold selections were limited due to availability. Drink and meal service (already an hour delayed) was very slow. Upon arrival in Nashville, had to sit at gate for about 15 minutes before disembarking with no explanation. Local police then boarded plane as we were disembarking so maybe that was the issue.

Leg space was not enough. The meal was not satisfactory.

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.
10/24Thu
2 stopsIcelandair
15h 55mHEL-SEA
$428
8/20Tue
3 stops
44h 38mHEL-SEA
$438
10/24Thu
1 stopIcelandair
12h 50mHEL-SEA
$477
10/24Thu
3 stops
22h 25mHEL-SEA
$566
8/20Tue
2 stopsairBaltic
24h 00mHEL-SEA
$605
8/2Fri
2 stops
35h 16mHEL-SEA
$615
8/20Tue
nonstopAmerican Airlines
9h 20mHEL-SEA
$835
8/24Sat
nonstopAmerican Airlines
9h 20mHEL-SEA
$942
7/7Sun
1 stopBritish Airways
30h 41mHEL-SEA
$1,065
10/24Thu
3 stopsUnited Airlines
42h 35mHEL-SEA
$5,023

Search by stops

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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.
6/4Tue
multi-stop
21h 29mHEL-SEA
6/11Tue
multi-stop
24h 05mSEA-HEL
$860
6/4Tue
multi-stopBritish Airways
26h 05mHEL-SEA
6/11Tue
nonstopBritish Airways
9h 15mSEA-HEL
$950
6/4Tue
multi-stop
21h 29mHEL-SEA
6/11Tue
multi-stop
23h 10mSEA-HEL
$953
6/4Tue
multi-stop
28h 55mHEL-SEA
6/11Tue
multi-stop
14h 20mSEA-HEL
$959
6/4Tue
multi-stopKLM
18h 18mHEL-SEA
6/11Tue
multi-stopKLM
20h 10mSEA-HEL
$964
6/4Tue
multi-stopUnited Airlines
26h 30mHEL-SEA
6/11Tue
multi-stopUnited Airlines
34h 20mSEA-HEL
$1,007
6/4Tue
multi-stopAmerican Airlines
17h 05mHEL-SEA
6/10Mon
multi-stopAmerican Airlines
24h 25mSEA-HEL
$1,202
6/4Tue
nonstopAmerican Airlines
9h 20mHEL-SEA
6/10Mon
multi-stopAmerican Airlines
24h 25mSEA-HEL
$1,261
6/4Tue
multi-stopDelta
21h 45mHEL-SEA
6/14Fri
multi-stopDelta
21h 05mSEA-HEL
$4,964
6/4Tue
multi-stopDelta
22h 19mHEL-SEA
6/14Fri
multi-stopDelta
21h 05mSEA-HEL
$5,087

Search by stops

Search by airline

Search by price

Helsinki - Seattle Flights

Departure:

Helsinki (HEL)Finland

Destination:

Seattle (SEA)United States

Return flight deals:

Seattle - Helsinki

Cabin classes:

$2,573
$1,590
$929