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

Currently priced at $769, Turkish Airlines will fly you from Helsinki to Seattle and back. In addition to Turkish Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and Icelandair - these airlines can fly you to your destination from $771 and $781, respectively. Turkish Airlines is currently priced 8% 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 Icelandair ($670), Finnair ($849), and Iberia ($864).

What is the cheapest day to fly from Helsinki to Seattle?

Travelers seeking maximum savings on their Helsinki to Seattle flight should consider departing on Wednesday mornings when fares are most often at their lowest. Tuesday afternoons flights should be avoided if possible as fares are typically the most expensive at this time.

What are the cheapest flights from Helsinki to Seattle?

Looking for the cheapest flight from Helsinki to Seattle? While on average our users pay $925, our data indicates the cheapest price to be $885. The most popular route (Helsinki-Vantaa - Seattle/Tacoma Intl), is priced around $769.

What are the most popular airlines that fly from Helsinki to Seattle?

The most popular airlines flying from Helsinki to Seattle are Air France, Finnair and Icelandair. Something to consider prior to booking your flight.

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

Users have found that flying from Helsinki to Seattle on a Monday typically leans towards higher prices. However, this doesn’t mean you still can’t find a deal. Flexibility with other aspects of your flight can still land a great price for your trip.

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

To save up to 90% on this flight, we recommend booking at least 47 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from Helsinki to Seattle from $904 1-2 weeks out and tickets from $1,174 for flights departing within the next 72 hours.

What is the cheapest month to fly from Helsinki to Seattle?

Flights from Helsinki to Seattle lean towards being more expensive in July. Prices are generally better when you fly from Helsinki to Seattle in October, with the cheapest ticket starting at $609.

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.

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.

$407+ Flights from Helsinki to Seattle - Compare & Save Big

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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.

Cheapflights Tip: The best prices from Helsinki-Vantaa to Seattle/Tacoma Intl are usually found in October or March, booked 48 days in advance, depart on a Monday or Wednesday and return on a Sunday

Cheap flight deals from Helsinki to Seattle

Most accurate provider	AranGrant 3 stars
Most trusted provider	AranGrant 3 stars
Round-trip from	$769 (Turkish Airlines)
One-way from	$407 (Kiwi.com)
Popular in	July
Cheapest in	October
Average price	$767
Good one-way deal	$903 or less

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. 14% potential increase in price ($144 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 2% potential price decrease ($23 potential savings vs. average RT price).

Search Deals

Average for round-trip flights in April 2025

Search Deals

Price to beat on a one-way flight from Helsinki-Vantaa to Seattle/Tacoma Intl.

Search Deals

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 April 28, 2025.

Sat 10/1812:35 pmHEL - SEA

1 stop38h 40mTurkish Airlines

Sat 11/18:00 pmSEA - HEL

1 stop37h 05mTurkish Airlines

Deal found 4/28

$769

Mon 5/123:00 pmHEL - SEA

1 stop12h 50mIcelandair

Mon 5/197:00 pmSEA - HEL

1 stop33h 00mIcelandair

Deal found 4/28

$788

Mon 5/197:05 amHEL - SEA

3 stops20h 45mMultiple Airlines

Mon 5/263:45 pmSEA - HEL

3 stops31h 45mMultiple Airlines

Deal found 4/28

$790

Mon 5/266:35 amHEL - SEA

1 stop17h 15mScandinavian Airlines

Mon 6/24:00 pmSEA - HEL

1 stop18h 15mScandinavian Airlines

Deal found 4/28

$792

Sat 10/47:00 amHEL - SEA

2 stops21h 51mDelta

Sat 10/119:25 amSEA - HEL

2 stops17h 35mDelta

Deal found 4/28

$821

Sun 5/184:20 pmHEL - SEA

Nonstop9h 40mFinnair

Sun 5/255:40 pmSEA - HEL

Nonstop9h 30mFinnair

Deal found 4/27

$835

Mon 5/264:00 pmHEL - SEA

1 stop17h 01mAmerican Airlines

Mon 6/25:40 pmSEA - HEL

Nonstop9h 30mAmerican Airlines

Deal found 4/28

$867

Sat 10/46:10 amHEL - SEA

3 stops24h 56mUnited Airlines

Sat 10/116:00 amSEA - HEL

2 stops19h 55mUnited Airlines

Deal found 4/28

$880

Sun 5/114:20 pmHEL - SEA

Nonstop9h 40mBritish Airways

Sun 5/181:30 pmSEA - HEL

1 stop21h 30mBritish Airways

Deal found 4/27

$938

Sun 5/46:00 amHEL - SEA

1 stop20h 59mLufthansa

Sun 5/116:50 pmSEA - HEL

1 stop14h 05mLufthansa

Deal found 4/27

$993

Best flights from Helsinki to Seattle
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 April 28, 2025.

Sat 10/1812:35 pmHEL - SEA

1 stop38h 40mTurkish Airlines

Sat 11/18:00 pmSEA - HEL

1 stop37h 05mTurkish Airlines

Deal found 4/28

$769

Thu 10/97:40 pmHEL - SEA

1 stop31h 19mLufthansa

Thu 10/162:20 pmSEA - HEL

1 stop16h 20mLufthansa

Deal found 4/27

$771

Thu 5/83:00 pmHEL - SEA

1 stop15h 40mIcelandair

Wed 5/213:45 pmSEA - HEL

1 stop12h 15mIcelandair

Deal found 4/27

$781

Thu 10/92:25 pmHEL - SEA

2 stops16h 15mMultiple Airlines

Thu 10/167:00 pmSEA - HEL

2 stops17h 55mMultiple Airlines

Deal found 4/27

$797

Sun 5/259:00 pmHEL - SEA

1 stop26h 50mScandinavian Airlines

Sun 6/14:00 pmSEA - HEL

1 stop32h 35mScandinavian Airlines

Deal found 4/28

$807

Sat 10/47:00 amHEL - SEA

2 stops21h 51mDelta

Sat 10/119:25 amSEA - HEL

2 stops17h 35mDelta

Deal found 4/28

$821

Thu 5/84:20 pmHEL - SEA

Nonstop9h 40mFinnair

Wed 5/215:40 pmSEA - HEL

Nonstop9h 30mFinnair

Deal found 4/27

$829

Sat 5/244:00 pmHEL - SEA

1 stop17h 09mAmerican Airlines

Sat 5/315:40 pmSEA - HEL

Nonstop9h 30mAmerican Airlines

Deal found 4/26

$856

Wed 5/146:10 amHEL - SEA

3 stops25h 21mUnited Airlines

Sun 5/186:50 pmSEA - HEL

1 stop14h 05mUnited Airlines

Deal found 4/27

$931

Sun 5/114:20 pmHEL - SEA

Nonstop9h 40mBritish Airways

Sun 5/181:30 pmSEA - HEL

1 stop21h 30mBritish Airways

Deal found 4/27

$938

Last-minute flights from Helsinki to Seattle
Discover last-minute flight deals from Helsinki to Seattle. Data last updated April 28, 2025 and is based on user searches.

Sun 5/46:00 amHEL - SEA

1 stop20h 59mLufthansa

Sun 5/116:50 pmSEA - HEL

1 stop14h 05mLufthansa

Deal found 4/27

$993

Sun 5/412:40 pmHEL - SEA

1 stop14h 19mUnited Airlines

Sun 5/112:15 pmSEA - HEL

2 stops18h 40mUnited Airlines

Deal found 4/27

$1,018

Thu 5/83:00 pmHEL - SEA

1 stop15h 40mIcelandair

Wed 5/213:45 pmSEA - HEL

1 stop12h 15mIcelandair

Deal found 4/27

$781

Thu 5/84:20 pmHEL - SEA

Nonstop9h 40mFinnair

Wed 5/215:40 pmSEA - HEL

Nonstop9h 30mFinnair

Deal found 4/27

$829

Thu 5/87:35 pmHEL - SEA

1 stop31h 40mTurkish Airlines

Wed 5/217:10 pmSEA - HEL

1 stop30h 30mTurkish Airlines

Deal found 4/28

$869

Thu 5/83:00 pmHEL - SEA

1 stop15h 40mMultiple Airlines

Wed 5/217:00 pmSEA - HEL

2 stops29h 35mMultiple Airlines

Deal found 4/27

$880

Thu 5/84:20 pmHEL - SEA

Nonstop9h 40mAmerican Airlines

Wed 5/215:40 pmSEA - HEL

Nonstop9h 30mAmerican Airlines

Deal found 4/28

$898

Thu 5/811:15 amHEL - SEA

2 stops19h 34mScandinavian Airlines

Wed 5/214:00 pmSEA - HEL

1 stop13h 25mScandinavian Airlines

Deal found 4/28

$907

Thu 5/87:00 amHEL - SEA

1 stop18h 57mDelta

Wed 5/2110:25 amSEA - HEL

2 stops20h 15mDelta

Deal found 4/28

$930

Thu 5/89:05 pmHEL - SEA

1 stop24h 30mBritish Airways

Wed 5/215:40 pmSEA - HEL

Nonstop9h 30mBritish Airways

Deal found 4/28

$958

Thu 5/86:10 amHEL - SEA

2 stops26h 03mUnited Airlines

Wed 5/2110:00 amSEA - HEL

2 stops16h 50mUnited Airlines

Deal found 4/28

$966

Sun 5/114:20 pmHEL - SEA

Nonstop9h 40mBritish Airways

Sun 5/181:30 pmSEA - HEL

1 stop21h 30mBritish Airways

Deal found 4/27

$938

One-way flights from Helsinki to Seattle
Search for one-way flight options from Helsinki to Seattle. Find affordable one-way fares based on user searches. Data last updated April 28, 2025.

Wed 5/289:20 pmHEL - SEA

3 stops48h 26mMultiple Airlines

Deal found 4/28

$407

Tue 6/103:00 pmHEL - SEA

1 stop12h 50mIcelandair

Deal found 4/28

$670

Sat 7/54:20 pmHEL - SEA

Nonstop9h 40mFinnair

Deal found 4/28

$849

Sat 7/512:35 pmHEL - SEA

1 stop18h 34mIberia

Deal found 4/28

$864

Sat 6/287:00 amHEL - SEA

1 stop14h 40mKLM

Deal found 4/27

$929

Sat 6/286:40 amHEL - SEA

1 stop14h 35mDelta

Deal found 4/27

$933

Sat 7/124:20 pmHEL - SEA

Nonstop9h 40mBritish Airways

Deal found 4/27

$2,672

Cheapflights Fare Finder

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

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sat 10/18

12:35 pm-5:15 pm

1 stop38h 40m

Seattle/Tacoma Intl

Sat 11/1

8:00 pm-6:05 pm

1 stop37h 05m

$769

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 10/9

7:40 pm-4:59 pm

1 stop31h 19m

Seattle/Tacoma Intl

Thu 10/16

2:20 pm-4:40 pm

1 stop16h 20m

$771

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 5/8

3:00 pm-8:40 pm

1 stop15h 40m

Seattle/Tacoma Intl

Wed 5/21

3:45 pm-2:00 pm

1 stop12h 15m

$781

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 10/9

2:25 pm-8:40 pm

2 stops16h 15m

Seattle/Tacoma Intl

Thu 10/16

7:00 pm-10:55 pm

2 stops17h 55m

$797

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sun 5/25

9:00 pm-1:50 pm

1 stop26h 50m

Seattle/Tacoma Intl

Sun 6/1

4:00 pm-10:35 am

1 stop32h 35m

$807

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sat 10/4

7:00 am-6:51 pm

2 stops21h 51m

Seattle/Tacoma Intl

Sat 10/11

9:25 am-1:00 pm

2 stops17h 35m

$821

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Thu 5/8

4:20 pm-4:00 pm

Nonstop9h 40m

Seattle/Tacoma Intl

Wed 5/21

5:40 pm-1:10 pm

Nonstop9h 30m

$829

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sat 5/24

4:00 pm-11:09 pm

1 stop17h 09m

Seattle/Tacoma Intl

Sat 5/31

5:40 pm-1:10 pm

Nonstop9h 30m

$856

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Wed 5/14

6:10 am-9:31 pm

3 stops25h 21m

Seattle/Tacoma Intl

Sun 5/18

6:50 pm-6:55 pm

1 stop14h 05m

$931

HelsinkiSeattle

HEL - SEA

HELSEA

Helsinki-Vantaa

Sun 5/11

4:20 pm-4:00 pm

Nonstop9h 40m

Seattle/Tacoma Intl

Sun 5/18

1:30 pm-9:00 pm

1 stop21h 30m

$938

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 17 results

Compare providers for flights from Helsinki to Seattle

Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helsinki to Seattle in April.

Provider	Price Accuracy	Trust Score*
eDreams	Price Accuracy3 stars	Trust Score*3 stars
FlightHub	Price Accuracy3 stars	Trust Score*2 stars
AranGrant	Price Accuracy3 stars	Trust 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.

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 46 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 $405). 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?

It’s optimal to fly from Helsinki to Seattle at noon. By choosing this option you can save up to 23% on the cost of your flight, compared to a flight in the afternoon.

Rainfall in Seattle 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

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

See what other customers who have flown with Delta, KLM and Finnair 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

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Delta

8.0

Very good

7,929 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

KLM

7.8

Good

1,333 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Finnair

7.6

Good

1,273 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

United Airlines

7.4

Good

8,696 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Turkish Airlines

7.3

Good

3,785 reviews

Delta

8.0

Very good

7,929 reviews

Reviews

1 / 20

10.0

Excellent

Aaron,Oct 2024

TUS - LAX

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

Related info for your journey

What are the cheapest airlines flying from Helsinki to Seattle round-trip?
Currently priced at $769, Turkish Airlines will fly you from Helsinki to Seattle and back. In addition to Turkish Airlines, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from Lufthansa and Icelandair - these airlines can fly you to your destination from $771 and $781, respectively. Turkish Airlines is currently priced 8% 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 Icelandair ($670), Finnair ($849), and Iberia ($864).
What are the cheapest flights from Helsinki to Seattle?
Looking for the cheapest flight from Helsinki to Seattle? While on average our users pay $925, our data indicates the cheapest price to be $885. The most popular route (Helsinki-Vantaa - Seattle/Tacoma Intl), is priced around $769.
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 $405). 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

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Other flights to Seattle

Top 3 airlines flying from Helsinki to Seattle

Airline	Cheapest	Average	Flexibility	On-time
Icelandair	Cheapest$622	Average$775	FlexibilityNo cancel fee	On-time76%
Finnair	Cheapest$690	Average$1,020	FlexibilityNo cancel fee	On-time76%
Air France	Cheapest$754	Average$906	FlexibilityNo cancel fee	On-time77%

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$407+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Helsinki to Seattle with Cheapflights

1. Tell us where you want to go

2. Select your favorite providers

3. Compare prices and book

Cheapflights Tip: The best prices from Helsinki-Vantaa to Seattle/Tacoma Intl are usually found in October or March, booked 48 days in advance, depart on a Monday or Wednesday and return on a Sunday

Cheap flight deals from Helsinki to Seattle

Most accurate provider

Most trusted provider

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Good one-way deal

Find flight deals from Helsinki to Seattle

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 April 28, 2025.

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 April 28, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Helsinki to Seattle that are best for you.

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 April.

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.

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 April 25, 2025.

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

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 April 28, 2025.

Rainfall in Seattle by month

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

Temperature in Seattle by month

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

Reviews of airlines servicing Seattle

See what other customers who have flown with Delta, KLM and Finnair 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.

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?

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

What are the cheapest flights from Helsinki to Seattle?

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

How can I find direct flights from Helsinki to Seattle?

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

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

Traveling to a place near Helsinki?

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.

Top 3 airlines flying from Helsinki to Seattle

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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 April 28, 2025.