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$460+ 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 1/29. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — SEA
Jan 21 — Jan 281
Tue 1/21
Tue 1/28
1 adult, Economy
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The best prices from Helsinki-Vantaa to Seattle/Tacoma Intl are usually found in March or April, booked 88 days in advance, depart on a Wednesday or Sunday and return on a Wednesday

Cheap 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 16, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$505
(Mytrip)

One-way from

$460
(Kiwi.com)

Popular in

July

Cheapest in

March

Average price

$779
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
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One-way flight from Helsinki-Vantaa to Seattle/Tacoma Intl
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High demand for flights, 13% potential price rise
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Best time to find cheap flights, 2% potential price drop
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Average for round-trip flights in January 2025
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Find 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 16, 2025.

This Mytrip deal was found by Cheapflights users on 1/16. 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 2/137:40 amHEL - SEA
2 stops19h 20mMultiple Airlines
Thu 2/202:35 pmSEA - HEL
2 stops21h 40mMultiple Airlines
Deal found 1/16$505
This Mytrip deal was found by Cheapflights users on 1/16. 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 2/132:00 pmHEL - SEA
1 stop13h 00mIcelandair
Thu 2/202:35 pmSEA - HEL
1 stop12h 25mIcelandair
Deal found 1/16$578
This Ticket deal was found by Cheapflights users on 1/16. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/251:55 pmHEL - SEA
1 stop31h 56mKLM
Sun 2/92:09 pmSEA - HEL
1 stop23h 56mKLM
Deal found 1/16$590
This United Airlines deal was found by Cheapflights users on 1/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/47:00 amHEL - SEA
2 stops24h 30mUnited Airlines
Thu 3/66:15 amSEA - HEL
2 stops26h 25mUnited Airlines
Deal found 1/16$600
This Delta deal was found by Cheapflights users on 1/15. 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 1/297:00 amHEL - SEA
2 stops19h 55mDelta
Wed 2/56:00 amSEA - HEL
2 stops24h 00mDelta
Deal found 1/15$603
This Air France deal was found by Cheapflights users on 1/16. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:40 amHEL - SEA
1 stop14h 35mAir France
Fri 5/96:35 pmSEA - HEL
1 stop18h 45mAir France
Deal found 1/16$606
This Sembo deal was found by Cheapflights users on 1/16. 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.
Sun 2/97:25 pmHEL - SEA
2 stops37h 28mLufthansa
Sun 2/233:10 pmSEA - HEL
1 stop34h 50mLufthansa
Deal found 1/16$650
This American Airlines deal was found by Cheapflights users on 1/16. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/212:25 pmHEL - SEA
1 stop18h 55mAmerican Airlines
Sat 3/812:59 amSEA - HEL
1 stop23h 51mAmerican Airlines
Deal found 1/16$656
This Turkish Airlines deal was found by Cheapflights users on 1/16. 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.
Sat 10/1812:35 pmHEL - SEA
1 stop38h 35mTurkish Airlines
Sat 11/18:00 pmSEA - HEL
1 stop30h 30mTurkish Airlines
Deal found 1/16$702
This Air Canada deal was found by Cheapflights users on 1/16. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/256:10 amHEL - SEA
3 stops25h 53mAir Canada
Fri 5/97:20 amSEA - HEL
2 stops23h 45mAir Canada
Deal found 1/16$909
This Scandinavian Airlines deal was found by Cheapflights users on 1/16. 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.
Sat 10/187:20 amHEL - SEA
3 stops24h 51mScandinavian Airlines
Sat 11/111:40 amSEA - HEL
2 stops18h 45mScandinavian Airlines
Deal found 1/16$1,014
This Ovago deal was found by Cheapflights users on 1/16. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/294:40 pmHEL - SEA
Nonstop9h 20mBritish Airways
Fri 12/191:45 pmSEA - HEL
1 stop23h 15mBritish Airways
Deal found 1/16$1,051

Find flights from Helsinki to Seattle within your budget

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 16, 2025.

Fly from

Any airport

Fly to

Any airport

Route

Depart

Return

Price

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 2/13

7:40 am-5:00 pm

2 stops19h 20m

Seattle/Tacoma Intl

Thu 2/20

2:35 pm-10:15 pm

2 stops21h 40m

$505

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 2/13

2:00 pm-5:00 pm

1 stop13h 00m

Seattle/Tacoma Intl

Thu 2/20

2:35 pm-1:00 pm

1 stop12h 25m

$578

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Tue 2/4

7:00 am-9:30 pm

2 stops24h 30m

Seattle/Tacoma Intl

Thu 3/6

6:15 am-6:40 pm

2 stops26h 25m

$600

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 1/30

7:00 am-11:51 am

1 stop14h 51m

Seattle/Tacoma Intl

Thu 2/6

6:00 am-4:00 pm

2 stops24h 00m

$602

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Fri 4/25

6:40 am-11:15 am

1 stop14h 35m

Seattle/Tacoma Intl

Fri 5/9

6:35 pm-11:20 pm

1 stop18h 45m

$606

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sun 2/9

7:25 pm-10:53 pm

2 stops37h 28m

Seattle/Tacoma Intl

Sun 2/23

3:10 pm-12:00 pm

1 stop34h 50m

$650

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sun 3/2

12:25 pm-9:20 pm

1 stop18h 55m

Seattle/Tacoma Intl

Sat 3/8

12:59 am-10:50 am

1 stop23h 51m

$656

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Fri 4/25

6:10 am-10:03 pm

3 stops25h 53m

Seattle/Tacoma Intl

Fri 5/9

7:20 am-5:05 pm

2 stops23h 45m

$909

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sun 6/29

4:40 pm-4:00 pm

Nonstop9h 20m

Seattle/Tacoma Intl

Fri 12/19

1:45 pm-11:00 pm

1 stop23h 15m

$1,051

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sun 2/9

8:10 am-10:21 pm

3 stops24h 11m

Seattle/Tacoma Intl

Sun 2/23

10:15 am-5:40 pm

2 stops21h 25m

$1,225

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/16

Showing 1-10 of 15 results
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 January.
ProviderPrice AccuracyTrust Score*
AranGrantPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice 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 AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Helsinki-Seattle flight deals on Cheapflights vs. AranGrant >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 AranGrant the most. AranGrant 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.

Travel insights for flights from Helsinki to Seattle

Get recent, data-driven insights about flights from Helsinki to Seattle including ideal travel times, pricing trends, and more.

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 10, 2025.

Booking 88 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, January is the cheapest month in which you can book a flight from Helsinki to Seattle (average of $238). Flying from Helsinki to Seattle in July is currently the most expensive (average of $411). 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 January 16, 2025.

It’s optimal to fly from Helsinki to Seattle at noon. By choosing this option you can save up to 19% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Seattle by month

Plan your trip to Seattle by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Seattle ranges from 0.7 - 6.6 inches per month. November is typically the wettest month, when rainfall can reach 6.6 in. July is typically the driest time to visit Seattle when rainfall is around 0.7 in.

Temperature in Seattle by month

Plan your trip to Seattle by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Seattle, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of December, when temperatures are typically at their lowest (around 41.0 F).

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 16, 2025.
See what other customers who have flown with Air Canada, American Airlines and United Airlines from Helsinki to Seattle have to say. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Delta
8.0
Very good
8,511 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Finnair
7.6
Good
1,285 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Air France
7.4
Good
1,487 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

United Airlines
7.4
Good
8,964 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Scandinavian Airlines
7.3
Good
1,308 reviews
Delta
8.0
Very good
8,511 reviews

Overall

8.0

Entertainment

7.9

Boarding

8.2

Comfort

8.0

Crew

8.6

Food

7.3

Reviews

1 / 10

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

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.

  • What are the cheapest airlines flying from Helsinki to Seattle round-trip?

    Currently priced at $578, Icelandair will fly you from Helsinki to Seattle and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from United Airlines and Delta - these airlines can fly you to your destination from $600 and $602, respectively. Icelandair is currently priced 31% below the average price you’ll pay for this route.

  • What are the cheapest airlines to fly from Helsinki to Seattle one-way?

    The cheapest airlines for a one-way flight from Helsinki to Seattle are WestJet ($488), Icelandair ($601), and Iberia ($658).

  • What are the cheapest flights from Helsinki to Seattle?

    Looking for the cheapest flight from Helsinki to Seattle? While on average our users pay $761, our data indicates the cheapest price to be $595. The most popular route (Helsinki-Vantaa - Seattle/Tacoma Intl), is priced around $484.

  • 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, January is the cheapest month in which you can book a flight from Helsinki to Seattle (average of $238). Flying from Helsinki to Seattle in July is currently the most expensive (average of $411). 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 Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
SeaTac
Tukwila
Renton
Tacoma
Lacey
Federal Way
Ocean Shores
Leavenworth
Olympia
Marysville
Centralia
Cle Elum
Mukilteo
Aberdeen
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Issaquah
Shoreline
Lynnwood
Shelton
Silverdale

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Alternative routes for Helsinki to Seattle

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

Top 4 airlines flying from Helsinki to Seattle

Discover the top 4 airlines 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 16, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$597Average$832FlexibilityNo cancel feeOn-time76%
DeltaCheapest$603Average$864FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$604Average$905FlexibilityNo cancel feeOn-time77%
FinnairCheapest$739Average$980FlexibilityNo cancel feeOn-time76%
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