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$501+ 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 9/1. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SEA
Jul 28 — Aug 41
Tue 7/28
Tue 8/4
1 adult, Economy
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1. Tell us where you want to go

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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 June 28, 2026.

This Mytrip deal was found by Cheapflights users on 6/24. 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.
Fri 8/213:40 pm
HEL
-
SEA
2 stops32h 05m
Multiple Airlines
Sun 8/303:55 pm
SEA
-
HEL
2 stops21h 55m
Multiple Airlines
Deal found 6/24$693
This Trip.com deal was found by Cheapflights users on 6/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:50 am
HEL
-
SEA
2 stops35h 55m
Multiple Airlines
Fri 9/411:25 pm
SEA
-
HEL
2 stops32h 15m
Multiple Airlines
Deal found 6/27$722
This Turkish Airlines deal was found by Cheapflights users on 6/27. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/512:25 pm
HEL
-
SEA
2 stops44h 28m
Turkish Airlines
Fri 11/1310:52 am
SEA
-
HEL
2 stops38h 38m
Turkish Airlines
Deal found 6/27$752
This Trip.com deal was found by Cheapflights users on 6/27. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/118:30 am
HEL
-
SEA
2 stops18h 29m
Multiple Airlines
Tue 8/182:10 pm
SEA
-
HEL
2 stops21h 10m
Multiple Airlines
Deal found 6/27$760
This Sembo deal was found by Cheapflights users on 6/27. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/203:00 pm
HEL
-
SEA
1 stop15h 40m
Icelandair
Sun 9/133:40 pm
SEA
-
HEL
1 stop12h 20m
Icelandair
Deal found 6/27$773
This Mytrip deal was found by Cheapflights users on 6/23. 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 8/191:25 pm
HEL
-
SEA
3 stops32h 20m
Multiple Airlines
Mon 8/313:40 pm
SEA
-
HEL
3 stops32h 55m
Multiple Airlines
Deal found 6/23$791
This Travelis deal was found by Cheapflights users on 6/28. 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 Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:20 am
HEL
-
SEA
1 stop19h 00m
Turkish Airlines
Mon 8/3112:35 pm
SEA
-
HEL
1 stop20h 05m
Turkish Airlines
Deal found 6/28$802

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 June 28, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$693
(Mytrip)

One-way from

$501
(Kiwi.com)

Popular in

July

Cheapest in

November

Average price

$1,003
Provider with most accurate pricing for Helsinki-Vantaa-Seattle/Tacoma Intl flight deals.
Search Deals
Provider most trusted by Cheapflights users for Helsinki-Vantaa-Seattle/Tacoma Intl flights.
Search Deals
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. 12% potential increase in price ($139 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease ($27 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in June 2026
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 June 28, 2026.
Use the filters below to find and compare flights from Helsinki to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Fri 8/21

12:05 pm-10:40 am

1 stop32h 35m

Seattle/Tacoma Intl

Fri 9/4

7:15 pm-6:40 pm

1 stop37h 25m

$872

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 8/20

8:20 am-11:26 pm

2 stops25h 06m

Seattle/Tacoma Intl

Sun 9/13

7:15 pm-11:55 pm

1 stop18h 40m

$873

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Fri 8/21

7:00 am-6:44 pm

2 stops21h 44m

Seattle/Tacoma Intl

Fri 9/4

1:30 pm-4:40 pm

1 stop17h 10m

$904

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 8/20

7:00 am-4:13 pm

2 stops19h 13m

Seattle/Tacoma Intl

Sun 9/13

9:30 am-1:05 pm

2 stops17h 35m

$909

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Fri 10/2

7:15 am-1:45 pm

2 stops16h 30m

Seattle/Tacoma Intl

Mon 10/5

10:53 am-1:30 am

2 stops28h 37m

$914

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sat 8/15

1:55 pm-11:37 am

1 stop31h 42m

Seattle/Tacoma Intl

Mon 8/31

6:40 pm-4:40 pm

1 stop36h 00m

$915
Quickest round-trip

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Fri 10/2

3:00 pm-5:55 pm

1 stop12h 55m

Seattle/Tacoma Intl

Mon 10/5

3:40 pm-2:00 pm

1 stop12h 20m

$919

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Fri 7/31

7:35 pm-10:40 am

1 stop25h 05m

Seattle/Tacoma Intl

Mon 8/10

7:15 pm-11:10 am

1 stop29h 55m

$936

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Tue 8/18

7:30 pm-11:35 am

1 stop26h 05m

Seattle/Tacoma Intl

Fri 9/11

5:40 pm-1:10 pm

Nonstop9h 30m

$951
Cheapest one-way

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 8/20

11:55 pm-7:13 pm

3 stops29h 18m

$571

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/22

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

Compare providers for flights from Helsinki to Seattle

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helsinki to Seattle in June.
ProviderPrice AccuracyTrust Score*
FlightHubPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
AranGrantPrice Accuracy3 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • 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?

Booking 18 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, November is the cheapest month in which you can book a flight from Helsinki to Seattle (average of $831). Flying from Helsinki to Seattle in July is currently the most expensive (average of $1,240). 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.

What is the cheapest time of day to fly from HEL to SEA?

Find hourly flight availability from Helsinki to Seattle. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 28, 2026.

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Helsinki to Seattle as you normally would.

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

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 16h 30m. Helsinki and Seattle are separated by a distance of 4764 mi. This flight may include one or multiple stops.

  • What are the most reliable airlines from Helsinki to Seattle?

    Before booking your flight to Seattle from Helsinki, check out the most reliable airlines to get you to your destination on time: American Airlines (33%), Alaska Airlines (33%), Finnair( 33%).

  • 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, November is the cheapest month in which you can book a flight from Helsinki to Seattle (average of $831). Flying from Helsinki to Seattle in July is currently the most expensive (average of $1,240). 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
SeaTac
Tacoma
Lacey
Leavenworth
Olympia
Ocean Shores
Renton
Edmonds
Snoqualmie
Tumwater
Tukwila
Kent
Lynnwood
Ellensburg
Fife
Marysville
Lakewood
Issaquah
Shoreline
Centralia

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