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Cheap flights from Seattle to Helsinki from $343

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Helsinki departing on 3/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Seattle to Helsinki

Cheap round-trip flights

These are some of the best round-trip flight deals from Seattle to Helsinki that have been recently found on momondo from popular airlines, departing in the coming months.

Cheap one-way flights

Flying one-way? These are some of the best deals recently discovered on momondo for flights from Seattle to Helsinki.

Cheap last minute flights

Planning a quick getaway from Seattle to Helsinki? These are the last-minute flight deals available now.

Cheap direct flights

If you prefer a non-stop journey, check out our latest direct flight deals to Helsinki, so you can enjoy a seamless trip without layovers.

Cheap bus & train deals from Seattle to Helsinki

Find recent round-trip train or bus tickets from Seattle to Helsinki.

All round-trip flight deals to Helsinki

The cheapest plane tickets to Helsinki found on KAYAK recently.
11:45 am - 5:40 pmSEA-HEL
19h 55m2 stops
11:20 am - 10:25 pmHEL-SEA
21h 05m2 stops
$536Scandinavian Airlines
Find Deal
Mon, Feb 3 - Mon, Feb 10
11:45 am - 5:40 pmSEA-HEL
19h 55m2 stops
6:30 am - 10:21 pmHEL-SEA
25h 51m2 stops
$577Scandinavian Airlines
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Tue, Feb 4 - Tue, Feb 11
2:35 pm - 1:00 pmSEA-HEL
12h 25m1 stop
2:00 pm - 5:00 pmHEL-SEA
13h 00m1 stop
$720Icelandair
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Tue, Feb 4 - Tue, Feb 11
2:35 pm - 1:00 pmSEA-HEL
12h 25m1 stop
2:00 pm - 5:00 pmHEL-SEA
13h 00m1 stop
$728Icelandair
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Wed, Feb 5 - Wed, Feb 12
11:20 am - 2:15 pmSEA-HEL
16h 55m1 stop
4:25 pm - 11:24 pmHEL-SEA
16h 59m1 stop
$827Finnair
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Wed, Apr 9 - Wed, Apr 23
7:00 am - 1:40 pmSEA-HEL
20h 40m2 stops
7:25 pm - 1:20 pmHEL-SEA
27h 55m1 stop
$829Lufthansa
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Mon, Feb 3 - Mon, Feb 10
6:00 am - 3:20 pmSEA-HEL
23h 20m1 stop
4:00 pm - 10:43 pmHEL-SEA
16h 43m1 stop
$845American Airlines
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Tue, Feb 4 - Tue, Feb 11
6:00 am - 3:20 pmSEA-HEL
23h 20m1 stop
12:25 pm - 9:21 pmHEL-SEA
18h 56m1 stop
$854American Airlines
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Tue, Feb 4 - Tue, Feb 11
3:10 pm - 6:40 pmSEA-HEL
17h 30m1 stop
6:40 am - 1:10 pmHEL-SEA
15h 30m1 stop
$859Lufthansa
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Sun, Jan 19 - Wed, Mar 12
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$932Finnair
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Wed, May 14 - Sat, May 24
11:30 am - 10:50 amSEA-HEL
38h 20m3 stops
Sat, Mar 22
3:15 pm - 11:10 amSEA-HEL
34h 55m2 stops
Sun, Mar 23
2:35 pm - 10:20 amSEA-HEL
33h 45m3 stops
Wed, Jan 29
2:35 pm - 1:00 pmSEA-HEL
12h 25m1 stop
$454Icelandair
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Wed, Jan 29
1:30 pm - 4:00 pmSEA-HEL
17h 30m2 stops
$473Delta
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Wed, Mar 12
6:00 am - 1:10 pmSEA-HEL
21h 10m2 stops
$529Delta
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Fri, Feb 14
1:45 pm - 11:00 pmSEA-HEL
23h 15m1 stop
$635British Airways
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Fri, Feb 14
7:00 pm - 2:00 pmSEA-HEL
33h 00m1 stop
$742Icelandair
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Thu, Jun 12
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
$933British Airways
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Thu, Jun 12
12:31 am - 1:55 pmSEA-HEL
27h 24m2 stops
$1,756American Airlines
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Tue, Dec 31
6:50 pm - 3:15 pmSEA-HEL
34h 25m1 stop
12:35 pm - 11:22 pmHEL-SEA
20h 47m1 stop
$2,033
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Thu, Dec 26 - Thu, Jan 2
2:13 pm - 5:25 pmSEA-HEL
17h 12m1 stop
6:30 am - 4:54 pmHEL-SEA
20h 24m2 stops
$2,088Delta
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Thu, Dec 26 - Thu, Jan 2
6:10 am - 1:10 pmSEA-HEL
21h 00m2 stops
6:30 am - 4:54 pmHEL-SEA
20h 24m2 stops
$2,093Delta
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Thu, Dec 26 - Thu, Jan 2
7:15 pm - 6:45 pmSEA-HEL
37h 30m2 stops
2:10 pm - 1:20 pmHEL-SEA
33h 10m3 stops
$2,280
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Thu, Dec 26 - Thu, Jan 2
6:05 am - 9:15 pmSEA-HEL
29h 10m3 stops
4:00 pm - 1:20 pmHEL-SEA
31h 20m3 stops
$2,389
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Thu, Dec 26 - Thu, Jan 2
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$897Finnair
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Sun, May 11 - Thu, May 22
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$932Finnair
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Wed, May 14 - Sat, May 24
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$1,127Finnair
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Sun, Jun 1 - Mon, Jun 9
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$1,170Finnair
Find Deal
Thu, May 15 - Thu, May 22
5:40 pm - 12:55 pmSEA-HEL
9h 15mnonstop
4:40 pm - 4:00 pmHEL-SEA
9h 20mnonstop
$3,850Finnair
Find Deal
Mon, Jun 9 - Wed, Jun 18

Scandinavian Airlines flights from Seattle to Helsinki

Our best Scandinavian Airlines deals on Seattle to Helsinki flight tickets
Scandinavian Airlines
Feb 3
SEA11:45 amSeattle/Tacoma Intl
19h 55m
2 stops
HEL5:40 pmHelsinki-Vantaa
Feb 10
HEL11:20 amHelsinki-Vantaa
21h 05m
2 stops
SEA10:25 pmSeattle/Tacoma Intl
Scandinavian Airlines
Feb 4
SEA11:45 amSeattle/Tacoma Intl
19h 55m
2 stops
HEL5:40 pmHelsinki-Vantaa
Feb 11
HEL6:30 amHelsinki-Vantaa
25h 51m
2 stops
SEA10:21 pmSeattle/Tacoma Intl
Scandinavian Airlines
Feb 4
SEA7:10 amSeattle/Tacoma Intl
17h 30m
2 stops
HEL10:40 amHelsinki-Vantaa
Feb 11
HEL11:20 amHelsinki-Vantaa
21h 05m
2 stops
SEA10:25 pmSeattle/Tacoma Intl

Icelandair flights from Seattle to Helsinki

Our best Icelandair deals on Seattle to Helsinki flight tickets
Icelandair
Feb 4
SEA2:35 pmSeattle/Tacoma Intl
12h 25m
1 stop
HEL1:00 pmHelsinki-Vantaa
Feb 11
HEL2:00 pmHelsinki-Vantaa
13h 00m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Icelandair
Feb 5
SEA2:35 pmSeattle/Tacoma Intl
12h 25m
1 stop
HEL1:00 pmHelsinki-Vantaa
Feb 12
HEL2:00 pmHelsinki-Vantaa
13h 00m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
Icelandair
Jan 22
SEA2:35 pmSeattle/Tacoma Intl
12h 25m
1 stop
HEL1:00 pmHelsinki-Vantaa
Jan 29
HEL2:00 pmHelsinki-Vantaa
13h 00m
1 stop
SEA5:00 pmSeattle/Tacoma Intl

See travel insights to Helsinki from

How to get the cheapest flight ticket from Seattle to Helsinki

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the typical price of a round-trip flight between Seattle and Helsinki?

What is the cheapest month to fly to Helsinki?

The month of January is, on average, the cheapest month to fly to Helsinki from Seattle, with most prices found around $610. If you aren’t able to travel during the month of January, then book flights to Helsinki from Seattle during November instead. Flights to Helsinki in November, while not as cheap as those in January, still average around $621.

What is the cheapest day to depart on your flight to Helsinki?

The cheapest day to depart on your flight to Helsinki is on a Wednesday when prices can be found for as low as $812. This is often the case because there is less demand to fly during this day of the week. Flights from Seattle to Helsinki on a Thursday will generally be more expensive and average around $1,198. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Helsinki?

According to our data, the cheapest time of day to fly to Helsinki is in the morning. momondo users have found flights departing from Seattle to Helsinki in the morning for as low as $788. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $1,143 per ticket.

What is the cheapest Seattle/Tacoma Intl to Helsinki-Vantaa flight route?

Fly from Seattle/Tacoma Intl to Helsinki-Vantaa for the best Seattle/Tacoma Intl - Helsinki-Vantaa flight prices

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

In general, most travelers find the cheapest time to book a flight to Helsinki is about 38 days prior to their departure date when tickets on average are $906. However, in the past 72 hours, people saw flights from Seattle for as low as $469.

What cabin class options are available on Seattle/Tacoma Intl to Helsinki-Vantaa flights?

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Helsinki-Vantaa flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Seattle to Helsinki flights?

You could potentially save up to 21% on your flight if you consider stops on a Seattle to Helsinki flight.

How have Seattle to Helsinki flight prices changed over time?

As of December 2024, prices for Seattle to Helsinki flights are approximately 14% more expensive when compared to flights at the same time last year.

When to book flights from Seattle to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from Seattle to Helsinki according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Seattle to Helsinki (SEA to HEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Seattle to Helsinki

Best Price Found

$343

Fastest flight time

9h 15m

Direct flights

Mon, Tue, Thu and Fri

Airports in Helsinki

1 airport
The best one-way flight to Helsinki from Seattle in the past 72 hours is $343. The best round-trip flight deal from Seattle to Helsinki found on momondo in the last 72 hours is $536.
The fastest flight from Seattle to Helsinki takes 9h 15m
Direct flights go from Seattle to Helsinki on Monday, Tuesday, Thursday and Friday. Airlines offering direct flights are: Finnair and British Airways.
There is 1 airport near Helsinki: Helsinki-Vantaa (HEL)

  • How far is Seattle/Tacoma Intl to Helsinki-Vantaa by plane?

    The distance between Seattle/Tacoma Intl and Helsinki-Vantaa is about 4763.3 mi. Flights usually cover this in 9h 15m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport?

    Prices for flights from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport?

  • How old do you have to be to fly from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport.

  • What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

    The necessary travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.

  • What is the most popular plane model from Seattle to Helsinki?

  • What is the most popular airline from Seattle to Helsinki?


Best airlines flying from Seattle to Helsinki

Compare and see reviews for airlines that fly from Seattle to Helsinki with momondo
Airline
Rating
Free Cancellation
Price
IcelandairPriceFrom $481Free CancellationRating
7.1
506 reviews
Search Icelandair flights
British AirwaysPriceFrom $520Free CancellationRating
6.6
6,815 reviews
Search British Airways flights
American AirlinesPriceFrom $547Free CancellationRating
7.2
10,000 reviews
Search American Airlines flights
LufthansaPriceFrom $549Free CancellationRating
6.8
7,083 reviews
Search Lufthansa flights
FinnairPriceFrom $559Free CancellationRating
7.7
1,283 reviews
Search Finnair flights
United AirlinesPriceFrom $583Free CancellationRating
7.4
9,028 reviews
Search United Airlines flights
DeltaPriceFrom $618Free CancellationRating
8.0
8,594 reviews
Search Delta flights
IberiaPriceFrom $662Free CancellationRating
7.0
2,652 reviews
Search Iberia flights
Air FrancePriceFrom $771Free CancellationRating
7.4
1,501 reviews
Search Air France flights

Why use momondo?

Why should I use momondo to find a flight deal from Seattle to Helsinki?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Helsinki. momondo saves you time and could save you money on your trip.

Can I find flights from Seattle to Helsinki with flexible booking policies on momondo?

Yes. All flights to Helsinki from Seattle on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Seattle to Helsinki?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Seattle to Helsinki.

I’m not ready to book a flight from Seattle to Helsinki right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Helsinki from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.


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