$409+ 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 10/7. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SEA
Sep 26 — Oct 31
Round-trip
1 adult, Economy
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Find cheap flights from Helsinki to Seattle with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Helsinki to Seattle
Cheapest
Best
Last-minute
One-way
Cheapest flights from Helsinki to SeattleExplore 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 August 27, 2026.
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 August 27, 2026.
This Trip.com deal was found by Cheapflights users on 8/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/611:05 am -
2 stops16h 50m
Sun 10/113:40 pm -
2 stops22h 10m
Deal found 8/24![Multiple Airlines logo]()
$565
This Trip.com deal was found by Cheapflights users on 8/26. 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 10/97:05 am -
2 stops23h 35m
Sun 10/257:10 pm -
2 stops18h 15m
Deal found 8/26![Multiple Airlines logo]()
$641
This Trip.com deal was found by Cheapflights users on 8/25. 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.
Thu 10/111:05 am -
2 stops36h 40m
Sun 10/113:55 pm -
2 stops21h 55m
Deal found 8/25![Scandinavian Airlines logo]()
$647
This Mytrip deal was found by Cheapflights users on 8/25. 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.
Thu 10/13:40 pm -
3 stops32h 05m
Sun 10/113:55 pm -
2 stops21h 55m
Deal found 8/25![Multiple Airlines logo]()
$669
This Icelandair deal was found by Cheapflights users on 8/24. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:00 pm -
1 stop13h 00m
Mon 12/72:35 pm -
1 stop12h 25m
Deal found 8/24![Icelandair logo]()
$699
This Sembo deal was found by Cheapflights users on 8/23. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:55 pm -
1 stop28h 00m
Sun 10/257:10 pm -
1 stop32h 50m
Deal found 8/23![Icelandair logo]()
$714
This Mytrip deal was found by Cheapflights users on 8/24. 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.
Thu 10/81:25 pm -
2 stops34h 20m
Thu 10/157:00 pm -
3 stops27h 20m
Deal found 8/24![Multiple Airlines logo]()
$728
This Trip.com deal was found by Cheapflights users on 8/23. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/58:30 am -
2 stops19h 25m
Sun 10/257:10 pm -
2 stops18h 15m
Deal found 8/23![Multiple Airlines logo]()
$755
Best flights from Helsinki to SeattleDiscover carefully curated flight deals from Helsinki to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 27, 2026.
Discover carefully curated flight deals from Helsinki to Seattle that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 27, 2026.
This Icelandair deal was found by Cheapflights users on 8/26. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/32:00 pm -
1 stop13h 00m
Mon 12/72:35 pm -
1 stop12h 25m
Deal found 8/26![Icelandair logo]()
$875
This KLM deal was found by Cheapflights users on 8/24. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am -
1 stop19h 35m
Wed 10/75:45 pm -
1 stop13h 55m
Deal found 8/24![KLM logo]()
$880
This Delta deal was found by Cheapflights users on 8/23. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:00 am -
1 stop19h 35m
Fri 9/259:43 am -
2 stops20h 57m
Deal found 8/23![Delta logo]()
$884
This Scandinavian Airlines deal was found by Cheapflights users on 8/25. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/89:05 pm -
1 stop26h 40m
Fri 10/237:15 am -
2 stops32h 15m
Deal found 8/25![Scandinavian Airlines logo]()
$887
This British Airways deal was found by Cheapflights users on 8/25. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/124:25 pm -
Nonstop9h 35m
Fri 9/255:40 pm -
Nonstop9h 30m
Deal found 8/25![British Airways logo]()
$900
This Delta deal was found by Cheapflights users on 8/25. 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.
Fri 9/117:00 am -
2 stops21h 59m
Fri 9/257:30 am -
2 stops19h 35m
Deal found 8/25![Delta logo]()
$895
This Delta deal was found by Cheapflights users on 8/25. 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.
Mon 10/57:00 am -
1 stop19h 35m
Thu 10/155:45 pm -
1 stop13h 55m
Deal found 8/25![Delta logo]()
$901
This Delta deal was found by Cheapflights users on 8/24. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:55 pm -
1 stop36h 40m
Sun 10/41:30 pm -
1 stop17h 10m
Deal found 8/24![Delta logo]()
$931
Last-minute flights from Helsinki to SeattleDiscover last-minute flight deals from Helsinki to Seattle. Data last updated August 27, 2026 and is based on user searches.
Discover last-minute flight deals from Helsinki to Seattle. Data last updated August 27, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 8/22. 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.
Fri 9/47:05 am -
2 stops20h 50m
Fri 9/183:40 pm -
2 stops16h 40m
Deal found 8/22![Multiple Airlines logo]()
$808
This Sembo deal was found by Cheapflights users on 8/22. 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 Sembo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/43:00 pm -
1 stop12h 55m
Fri 9/187:00 pm -
1 stop33h 00m
Deal found 8/22![Icelandair logo]()
$848
This Vliegwinkel deal was found by Cheapflights users on 8/26. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:05 pm -
1 stop26h 40m
Fri 9/253:55 pm -
1 stop13h 25m
Deal found 8/26![Scandinavian Airlines logo]()
$873
This Sembo deal was found by Cheapflights users on 8/25. 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.
Fri 9/113:00 pm -
1 stop30h 45m
Fri 9/257:00 pm -
1 stop20h 55m
Deal found 8/25![Icelandair logo]()
$877
This Trip.com deal was found by Cheapflights users on 8/24. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/223:40 pm -
2 stops30h 15m
Tue 10/62:10 pm -
2 stops21h 10m
Deal found 8/24![Multiple Airlines logo]()
$804
This Scandinavian Airlines deal was found by Cheapflights users on 8/24. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/249:15 pm -
2 stops50h 30m
Sat 10/33:55 pm -
1 stop13h 25m
Deal found 8/24![Scandinavian Airlines logo]()
$878
This Scandinavian Airlines deal was found by Cheapflights users on 8/24. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/259:05 pm -
1 stop26h 40m
Tue 10/63:55 pm -
1 stop23h 35m
Deal found 8/24![Scandinavian Airlines logo]()
$871
One-way flights from Helsinki to SeattleSearch for one-way flight options from Helsinki to Seattle. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
Search for one-way flight options from Helsinki to Seattle. Find affordable one-way fares based on user searches. Data last updated August 27, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/25. 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 10/79:15 pm -
2 stops50h 30m
Deal found 8/25![Scandinavian Airlines logo]()
$409
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2210:45 pm -
3 stops48h 55m
Deal found 8/27![Multiple Airlines logo]()
$476
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/249:30 pm -
2 stops29h 30m
Deal found 8/27![Multiple Airlines logo]()
$491
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/238:25 pm -
2 stops30h 35m
Deal found 8/27![Multiple Airlines logo]()
$496
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/288:30 pm -
2 stops51h 10m
Deal found 8/27![Multiple Airlines logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 8/27. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:40 am -
2 stops40h 00m
Deal found 8/27![Multiple Airlines logo]()
$511
This Kiwi.com deal was found by Cheapflights users on 8/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/411:25 pm -
3 stops53h 11m
Deal found 8/23![Multiple Airlines logo]()
$533
This Kiwi.com deal was found by Cheapflights users on 8/25. 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.
Tue 10/611:50 pm -
2 stops27h 09m
Deal found 8/25![Multiple Airlines logo]()
$567
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 August 27, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $565 (Trip.com) |
One-way from | $409 (Kiwi.com) |
Popular in | July |
Cheapest in | October |
Average price | $971 |
Good one-way deal | $914 or less |
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 7,457,451 searches. Data last updated August 27, 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
Cheapest round-trip
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Thu 12/3
2:00 pm-5:00 pm
1 stop13h 00m
Seattle/Tacoma Intl
Mon 12/7
2:35 pm-1:00 pm
1 stop12h 25m
$875
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Tue 9/22
7:00 am-4:35 pm
1 stop19h 35m
Seattle/Tacoma Intl
Wed 10/7
5:45 pm-5:40 pm
1 stop13h 55m
$880
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Sat 9/12
7:00 am-4:35 pm
1 stop19h 35m
Seattle/Tacoma Intl
Fri 9/25
9:43 am-4:40 pm
2 stops20h 57m
$884
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Thu 10/8
9:05 pm-1:45 pm
1 stop26h 40m
Seattle/Tacoma Intl
Fri 10/23
7:15 am-1:30 am
2 stops32h 15m
$887
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Fri 9/11
7:00 am-6:59 pm
2 stops21h 59m
Seattle/Tacoma Intl
Fri 9/25
7:30 am-1:05 pm
2 stops19h 35m
$895
Quickest round-trip
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Sat 9/12
4:25 pm-4:00 pm
Nonstop9h 35m
Seattle/Tacoma Intl
Fri 9/25
5:40 pm-1:10 pm
Nonstop9h 30m
$900
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Mon 10/5
7:00 am-4:35 pm
1 stop19h 35m
Seattle/Tacoma Intl
Thu 10/15
5:45 pm-5:40 pm
1 stop13h 55m
$901
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Tue 9/22
1:55 pm-4:35 pm
1 stop36h 40m
Seattle/Tacoma Intl
Sun 10/4
1:30 pm-4:40 pm
1 stop17h 10m
$931
Cheapest one-way
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Sun 11/22
10:45 pm-1:40 pm
3 stops48h 55m
$476
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Mon 11/23
5:30 am-1:40 pm
3 stops42h 10m
$534
Showing 1-10 of 18 resultsSorted by cheapest first
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 August.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy- | Trust Score*1 star | |
| Price Accuracy3 stars | Trust Score*3 stars |
- 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.
HEL-SEA
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
Prices
Delays
How far ahead should I book a flight from Helsinki to Seattle?
Booking 15 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, October is the cheapest month in which you can book a flight from Helsinki to Seattle (average of $810). Flying from Helsinki to Seattle in July is currently the most expensive (average of $1,276). 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 August 27, 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 often are flights from Helsinki to Seattle delayed?
About 40% of weekly flights between Helsinki and Seattle have experienced delays in the past year, with the average delay time being 98 minutes.
What is the most punctual flight time for Helsinki to Seattle flights?
Historically, flights departing in the early afternoon are less likely to be delayed, whereas flights leaving in the early afternoon tend to experience delays more often.
What day of the week experiences the fewest flight delays on this route?
Monday tends to have the lowest number of delays on this route, whereas Saturday has historically faced a higher average of delays compared to other days of the week.
Which airline has the best punctuality record on Helsinki to Seattle flights?
Over the last year, Finnair have had the lowest number of delays on this route, with just 40% of flights being delayed.
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.
Traveling to a place near Seattle?
Book flights to Seattle if you plan to visit one of these locationsSeaTac
Renton
Tacoma
Lacey
Leavenworth
Tukwila
Olympia
Edmonds
Snoqualmie
Lynnwood
Centralia
Puyallup
Kent
Tumwater
Ellensburg
Marysville
Ocean Shores
Lakewood
Fife
Poulsbo
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