$574+ Cheap flights from Helsinki (HEL) to Seattle (SEA)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/30. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SEA
Oct 11 — Oct 181
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
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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 September 11, 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 September 11, 2026.
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Tue 10/64:25 pm -
3 stops35h 30m
Tue 10/137:00 pm -
3 stops28h 30m
Deal found 9/6![Multiple Airlines logo]()
$727
This Mytrip deal was found by Cheapflights users on 9/7. 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 10/224:00 pm -
3 stops35h 55m
Thu 10/293:35 pm -
3 stops31h 45m
Deal found 9/7![Multiple Airlines logo]()
$751
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Mon 10/51:55 pm -
2 stops33h 50m
Mon 10/193:40 pm -
2 stops23h 50m
Deal found 9/6![Multiple Airlines logo]()
$756
This Turkish Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 10/217:40 pm -
2 stops30h 11m
Wed 10/2810:50 am -
2 stops39h 40m
Deal found 9/6![Multiple Airlines logo]()
$761
This lol.travel deal was found by Cheapflights users on 9/7. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:05 pm -
1 stop39h 15m
Thu 10/298:05 pm -
1 stop30h 25m
Deal found 9/7![Turkish Airlines logo]()
$797
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 September 11, 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 September 11, 2026.
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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 10/2212:05 pm -
2 stops44h 51m
Thu 10/2910:50 am -
2 stops46h 20m
Deal found 9/7![Turkish Airlines logo]()
$761
This Turkish Airlines deal was found by Cheapflights users on 9/10. 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.
Sun 10/2512:25 pm -
1 stop38h 45m
Sun 11/110:56 pm -
2 stops26h 34m
Deal found 9/10![Multiple Airlines logo]()
$878
This Delta deal was found by Cheapflights users on 9/8. 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 10/237:00 am -
2 stops22h 05m
Fri 10/309:36 am -
2 stops18h 34m
Deal found 9/8![Delta logo]()
$892
This Icelandair deal was found by Cheapflights users on 9/7. 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 12/311:10 am -
2 stops39h 50m
Mon 12/72:35 pm -
1 stop12h 25m
Deal found 9/7![Icelandair logo]()
$1,004
This Turkish Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 12/212:25 pm -
2 stops61h 53m
Tue 12/87:05 pm -
1 stop30h 25m
Deal found 9/6![Turkish Airlines logo]()
$837
This Turkish Airlines deal was found by Cheapflights users on 9/6. 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.
Mon 11/307:05 pm -
1 stop32h 05m
Thu 12/310:49 am -
2 stops45h 21m
Deal found 9/6![Turkish Airlines logo]()
$837
This Delta deal was found by Cheapflights users on 9/6. 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.
Wed 12/26:40 am -
2 stops24h 24m
Wed 12/910:39 am -
2 stops20h 01m
Deal found 9/6![Delta logo]()
$927
This Mytrip deal was found by Cheapflights users on 9/8. 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 10/237:05 am -
3 stops23h 35m
Fri 10/303:35 pm -
2 stops25h 00m
Deal found 9/8![Multiple Airlines logo]()
$988
This Turkish Airlines deal was found by Cheapflights users on 9/7. 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.
Wed 10/2112:05 pm -
1 stop39h 15m
Wed 10/2810:50 am -
2 stops39h 40m
Deal found 9/7![Turkish Airlines logo]()
$872
This Turkish Airlines deal was found by Cheapflights users on 9/6. 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.
Mon 11/307:05 pm -
2 stops35h 43m
Tue 12/87:05 pm -
1 stop30h 25m
Deal found 9/6![Turkish Airlines logo]()
$884
This Turkish Airlines deal was found by Cheapflights users on 9/6. 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.
Fri 11/2712:25 pm -
1 stop38h 45m
Sat 12/57:05 pm -
1 stop30h 25m
Deal found 9/6![Turkish Airlines logo]()
$890
Last-minute flights from Helsinki to SeattleDiscover last-minute flight deals from Helsinki to Seattle. Data last updated September 11, 2026 and is based on user searches.
Discover last-minute flight deals from Helsinki to Seattle. Data last updated September 11, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Mon 10/51:55 pm -
2 stops33h 50m
Mon 10/193:40 pm -
2 stops23h 50m
Deal found 9/6![Multiple Airlines logo]()
$756
This Mytrip deal was found by Cheapflights users on 9/6. 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.
Tue 10/64:25 pm -
3 stops35h 30m
Tue 10/137:00 pm -
3 stops28h 30m
Deal found 9/6![Multiple Airlines logo]()
$727
This Turkish Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 10/217:40 pm -
2 stops30h 11m
Wed 10/2810:50 am -
2 stops39h 40m
Deal found 9/6![Multiple Airlines logo]()
$761
This Mytrip deal was found by Cheapflights users on 9/7. 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 10/224:00 pm -
3 stops35h 55m
Thu 10/293:35 pm -
3 stops31h 45m
Deal found 9/7![Multiple Airlines logo]()
$751
This lol.travel deal was found by Cheapflights users on 9/7. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:05 pm -
1 stop39h 15m
Thu 10/298:05 pm -
1 stop30h 25m
Deal found 9/7![Turkish Airlines logo]()
$797
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 September 11, 2026.
Search for one-way flight options from Helsinki to Seattle. Find affordable one-way fares based on user searches. Data last updated September 11, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/10. 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 9/309:20 pm -
2 stops50h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/10![Multiple Airlines logo]()
$574
This Kiwi.com deal was found by Cheapflights users on 9/6. 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 9/297:15 am -
3 stops23h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Multiple Airlines logo]()
$630
This Kiwi.com deal was found by Cheapflights users on 9/8. 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.
Fri 9/257:05 am -
2 stops40h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![Multiple Airlines logo]()
$744
This Thrive Travel deal was found by Cheapflights users on 9/8. 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 Thrive Travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/254:20 pm -
Nonstop9h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/8![British Airways logo]()
$908
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 September 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $727 (Mytrip) |
One-way from | $574 (Kiwi.com) |
Popular in | July |
Cheapest in | October |
Average price | $857 |
Good one-way deal | $1,002 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 September 11, 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
Wed 9/30
9:20 pm-1:45 pm
2 stops50h 25m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$574
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Tue 9/29
7:30 pm-5:55 pm
2 stops56h 25m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$680
Quickest round-trip
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Fri 9/25
8:05 am-9:40 am
3 stops35h 35m
Seattle/Tacoma Intl
Wed 12/31
12:00 am-10:00 am
Nonstop0h 00m
$744
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Thu 10/22
12:05 pm-10:56 pm
2 stops44h 51m
Seattle/Tacoma Intl
Thu 10/29
10:50 am-6:10 pm
2 stops46h 20m
$761
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Wed 12/2
12:25 pm-4:18 pm
2 stops61h 53m
Seattle/Tacoma Intl
Tue 12/8
7:05 pm-11:30 am
1 stop30h 25m
$837
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Mon 11/30
7:05 pm-5:10 pm
1 stop32h 05m
Seattle/Tacoma Intl
Thu 12/3
10:49 am-6:10 pm
2 stops45h 21m
$837
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Wed 10/21
12:05 pm-5:20 pm
1 stop39h 15m
Seattle/Tacoma Intl
Wed 10/28
10:50 am-11:30 am
2 stops39h 40m
$872
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Sun 10/25
12:25 pm-6:10 pm
1 stop38h 45m
Seattle/Tacoma Intl
Sun 11/1
10:56 pm-11:30 am
2 stops26h 34m
$878
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Mon 11/30
7:05 pm-8:48 pm
2 stops35h 43m
Seattle/Tacoma Intl
Tue 12/8
7:05 pm-11:30 am
1 stop30h 25m
$884
HelsinkiSeattle
HEL Helsinki-Vantaa - SEA Seattle/Tacoma Intl
HELSEA
Helsinki-Vantaa
Fri 11/27
12:25 pm-5:10 pm
1 stop38h 45m
Seattle/Tacoma Intl
Sat 12/5
7:05 pm-11:30 am
1 stop30h 25m
$890
Showing 1-10 of 14 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 September.
| 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 September 11, 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 38% of weekly flights between Helsinki and Seattle have experienced delays in the past year, with the average delay time being 102 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 38% 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
Olympia
Tukwila
Edmonds
Snoqualmie
Puyallup
Lynnwood
Centralia
Kent
Tumwater
Ellensburg
Issaquah
Marysville
Ocean Shores
Lakewood
Fife
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