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$496+ Cheap flights from Helsinki (HEL) to Seattle (SEA)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/26. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SEA
Feb 23 — Mar 21
Mon 2/23
Mon 3/2
1 adult, Economy
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1. Tell us where you want to go

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Cheapflights Tip: The best prices from Helsinki-Vantaa to Seattle/Tacoma Intl are usually found in March or October, booked 87 days in advance, depart on a Tuesday or Wednesday and return on a Tuesday

Cheap flight deals from Helsinki to Seattle

Cheapest flights from Helsinki to Seattle
Explore the most affordable flight options available from Helsinki to Seattle. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 24, 2026.

This Flightnetwork deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/191:55 pm
HEL
-
SEA
1 stop13h 05m
Icelandair
Wed 4/17:00 pm
SEA
-
HEL
1 stop33h 00m
Icelandair
Deal found 1/22$707
This Flightnetwork deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/51:55 pm
HEL
-
SEA
1 stop13h 05m
Icelandair
Wed 2/182:35 pm
SEA
-
HEL
1 stop12h 20m
Icelandair
Deal found 1/22$709
This Mytrip deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/412:05 am
HEL
-
SEA
2 stops22h 05m
Multiple Airlines
Wed 2/183:10 pm
SEA
-
HEL
2 stops18h 10m
Multiple Airlines
Deal found 1/22$729
This KLM deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/192:05 pm
HEL
-
SEA
1 stop31h 35m
Multiple Airlines
Thu 2/261:40 pm
SEA
-
HEL
1 stop16h 45m
Multiple Airlines
Deal found 1/22$753
This Delta deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/57:00 am
HEL
-
SEA
1 stop14h 40m
Delta
Wed 2/187:10 am
SEA
-
HEL
2 stops23h 15m
Delta
Deal found 1/22$754
This Delta deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/197:00 am
HEL
-
SEA
2 stops22h 00m
Delta
Thu 2/261:40 pm
SEA
-
HEL
1 stop16h 45m
Delta
Deal found 1/22$759
This Kiwi.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/87:00 pm
HEL
-
SEA
1 stop32h 05m
Turkish Airlines
Sun 3/158:00 pm
SEA
-
HEL
1 stop37h 05m
Turkish Airlines
Deal found 1/22$783
This Kiwi.com deal was found by Cheapflights users on 1/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/245:30 pm
HEL
-
SEA
3 stops33h 40m
Multiple Airlines
Tue 7/215:40 pm
SEA
-
HEL
Nonstop9h 30m
Multiple Airlines
Deal found 1/22$811

Find flight deals from Helsinki to Seattle

Discover tips and strategies to find the most affordable flight options for your journey from Helsinki (HEL) to Seattle (SEA). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 24, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
1 star

Round-trip from

$707
(Flightnetwork)

One-way from

$496
(Kiwi.com)

Popular in

December

Cheapest in

March

Average price

$960

Good one-way deal

$2,298 or less
Provider with most accurate pricing for Helsinki-Vantaa-Seattle/Tacoma Intl flight deals.
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Provider most trusted by Cheapflights users for Helsinki-Vantaa-Seattle/Tacoma Intl flights.
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From Helsinki-Vantaa to Seattle/Tacoma Intl
Search Deals
One-way flight from Helsinki-Vantaa to Seattle/Tacoma Intl
Search Deals
Highest demand for flights based on searches. 6% potential increase in price ($58 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 1% potential price decrease ($17 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals
Price to beat on a one-way flight from Helsinki-Vantaa to Seattle/Tacoma Intl.
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Helsinki to Seattle that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 24, 2026.
Use the filters below to find and compare flights from Helsinki to Seattle that are best for you.

Fly from

Helsinki

Fly to

Seattle

Route

Depart

Return

Price

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 3/12

1:55 pm-6:00 pm

1 stop13h 05m

Seattle/Tacoma Intl

Fri 3/27

7:00 pm-1:00 pm

1 stop33h 00m

$709

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 2/5

7:00 am-11:40 am

1 stop14h 40m

Seattle/Tacoma Intl

Wed 2/18

7:10 am-4:25 pm

2 stops23h 15m

$754

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 3/12

7:35 am-6:00 pm

2 stops19h 25m

Seattle/Tacoma Intl

Fri 3/27

3:35 pm-12:55 pm

1 stop12h 20m

$859

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Mon 6/22

3:55 pm-8:40 pm

2 stops14h 45m

Seattle/Tacoma Intl

Fri 7/24

3:40 pm-7:45 pm

2 stops18h 05m

$981

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Tue 6/23

3:55 pm-8:40 pm

2 stops14h 45m

Seattle/Tacoma Intl

Fri 7/24

3:40 pm-7:45 pm

2 stops18h 05m

$981

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 3/12

6:55 am-1:10 pm

1 stop15h 15m

Seattle/Tacoma Intl

Fri 3/27

4:10 pm-11:35 pm

1 stop22h 25m

$985

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Wed 6/24

6:35 am-12:20 pm

1 stop15h 45m

Seattle/Tacoma Intl

Thu 7/23

6:50 pm-6:55 pm

1 stop14h 05m

$985

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Wed 6/24

6:35 am-11:21 pm

2 stops26h 46m

Seattle/Tacoma Intl

Sat 7/25

6:50 pm-6:55 pm

1 stop14h 05m

$990

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Wed 6/24

6:00 am-11:21 pm

3 stops27h 21m

Seattle/Tacoma Intl

Wed 7/22

7:00 am-12:05 pm

2 stops19h 05m

$1,003

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Tue 5/26

7:10 am-7:49 pm

2 stops22h 39m

$513

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/22

Showing 1-10 of 18 results
1
2
  • Most accurate provider: When it comes to deals on Helsinki-Seattle flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Helsinki-Seattle flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Helsinki-Seattle flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helsinki-Seattle flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helsinki-Seattle flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helsinki to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Helsinki with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helsinki to Seattle

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

Use this chart to determine the optimal time to book a round-trip flight from Helsinki to Seattle. Price data was last updated on January 23, 2026.

Booking 87 days in advance of your planned departure date is, on average, the best time to get cheap flights from Helsinki to Seattle. The general trend is that the closer you book to the departure date, the more expensive your flight will be.

What is the cheapest month to book a flight from Helsinki to Seattle?

Currently, May is the cheapest month in which you can book a flight from Helsinki to Seattle (average of $498). Flying from Helsinki to Seattle in December is currently the most expensive (average of $801). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Helsinki to Seattle?

Reviews of airlines servicing Seattle

Get insights into the airlines that provide service to Seattle. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Seattle. Reviews last updated January 24, 2026.
Get a feel of what it's like to fly with Icelandair from Helsinki to Seattle by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Icelandair
7.1
Good
602 reviews

Crew

8.0

Food

6.2

Entertainment

7.0

Boarding

7.2

Overall

7.1

Comfort

7.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.
Icelandair
7.1
Good
602 reviews
Icelandair
7.1
Good
602 reviews

Crew

8.0

Food

6.2

Entertainment

7.0

Boarding

7.2

Overall

7.1

Comfort

7.0

Reviews

1 / 20
8.0
Excellent

Dmitry,Oct 2025

KEF - EWR

It was a nice experience, the plane was clean and the crew was friendly. The boarding process went smoothly and there were no delays.

Related info for your journey

Find useful and relevant information for your journey from Helsinki to Seattle. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Helsinki to Seattle?

    Departing from Helsinki to Seattle will take you 13h 05m. Helsinki and Seattle are separated by a distance of 4764 mi.

  • What is the cheapest airline to fly from Helsinki to Seattle round-trip?

    Currently priced at $504, Icelandair will fly you from Helsinki to Seattle and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Icelandair is currently priced 42% below the average price you’ll pay for this route.

  • What are the cheapest flights from Helsinki to Seattle?

    Looking for the cheapest flight from Helsinki to Seattle? While on average our users pay $2,298, our data indicates the cheapest price to be $2,298. The most popular route (Helsinki-Vantaa - Seattle/Tacoma Intl), is priced around $707.

  • Can I find deals for flights from Helsinki to Seattle that include hotel bookings?

    Yes. In addition to deals on Helsinki to Seattle flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helsinki to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helsinki to Seattle.

  • Can I find deals for business class flights from Helsinki to Seattle?

    Yes. Cheapflights offers flight deals from Helsinki to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Helsinki to Seattle?

    Currently, May is the cheapest month in which you can book a flight from Helsinki to Seattle (average of $498). Flying from Helsinki to Seattle in December is currently the most expensive (average of $801). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
SeaTac
Lakewood
Ocean Shores
Olympia
Lynnwood
Lacey
Edmonds
Renton
Puyallup
Kirkland
Kent
Tukwila
Fife
Aberdeen
Shoreline
Marysville
Centralia
Federal Way
Chehalis

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Helsinki to Seattle

See prices for flight routes from nearby airports that may be better suited for you.
Helsinki to Portland flights
Helsinki to Spokane flights

Top airline flying from Helsinki to Seattle

Discover the top airline that operate flights from Helsinki to Seattle. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 24, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$504Average$816FlexibilityNo cancel feeOn-time76%

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