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Cheap flights from Seattle to Finland from $376

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 Finland departing on 9/22. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
1 adult, Economy, 0 bags

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Finland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
3:55 pm - 10:35 amSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
32h 40m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
11:15 am - 1:45 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
12h 30m1 stop Kastrup Copenhagen
$482Scandinavian Airlines
Tue, Sep 29 - Tue, Oct 6
Scandinavian Airlines Logo
3:55 pm - 8:25 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
18h 30m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
7:15 am - 1:45 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
16h 30m2 stops Stockholm Arlanda Kastrup Copenhagen
$489Scandinavian Airlines
Tue, Sep 29 - Tue, Oct 6
Multiple Airlines Logo
7:00 pm - 10:35 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
17h 35m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
7:05 am - 5:55 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
20h 50m2 stops Stockholm Arlanda Reykjavik Keflavik Intl
$662Multiple Airlines
Thu, Aug 27 - Fri, Sep 4
Multiple Airlines Logo
7:00 pm - 9:20 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
16h 20m2 stops Reykjavik Keflavik Intl Stockholm Arlanda
Multiple Airlines Logo
9:20 pm - 8:40 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
33h 20m3 stops Riga Intl Stockholm Arlanda Reykjavik Keflavik Intl
$706Multiple Airlines
Mon, Sep 7 - Mon, Sep 21
Icelandair Logo
3:40 pm - 2:00 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
12h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:55 pm - 8:40 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
30h 45m1 stop Reykjavik Keflavik Intl
$836Icelandair
Mon, Sep 7 - Mon, Sep 21
Icelandair Logo
3:40 pm - 2:00 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
12h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
11:55 pm - 8:40 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
30h 45m1 stop Reykjavik Keflavik Intl
$837Icelandair
Mon, Sep 7 - Mon, Sep 21
Finnair Logo
5:40 pm - 1:10 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
9h 30mnonstop
Finnair Logo
4:20 pm - 4:00 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
9h 40mnonstop
$1,009Finnair
Mon, Sep 7 - Mon, Sep 21
Finnair Logo
5:40 pm - 1:10 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
9h 30mnonstop
Finnair Logo
4:20 pm - 4:00 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
9h 40mnonstop
$1,021Finnair
Mon, Sep 7 - Mon, Sep 21
Delta Logo
6:45 pm - 4:40 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
35h 55m1 stop Paris Charles de Gaulle
Delta Logo
7:00 am - 4:35 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
19h 35m1 stop Amsterdam Schiphol
$1,022Delta
Mon, Sep 14 - Fri, Sep 25
Delta Logo
6:45 pm - 4:40 pmSEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
35h 55m1 stop Paris Charles de Gaulle
Delta Logo
7:00 am - 4:35 pmHEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
19h 35m1 stop Amsterdam Schiphol
$1,022Delta
Sun, Sep 13 - Wed, Sep 23

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Scandinavian Airlines flights from Seattle to Finland

Our best Scandinavian Airlines deals on Seattle to Finland flight tickets
Scandinavian Airlines
Sep 29
SEA3:55 pmSeattle/Tacoma Intl
32h 40m
1 stop
HEL10:35 amHelsinki-Vantaa
Oct 6
HEL11:15 amHelsinki-Vantaa
12h 30m
1 stop
SEA1:45 pmSeattle/Tacoma Intl
$482
Scandinavian Airlines
Sep 29
SEA3:55 pmSeattle/Tacoma Intl
18h 30m
1 stop
HEL8:25 pmHelsinki-Vantaa
Oct 6
HEL7:15 amHelsinki-Vantaa
16h 30m
2 stops
SEA1:45 pmSeattle/Tacoma Intl
$489
Scandinavian Airlines
Sep 22
SEA3:55 pmSeattle/Tacoma Intl
13h 25m
1 stop
HEL3:20 pmHelsinki-Vantaa
Sep 29
HEL7:15 amHelsinki-Vantaa
16h 30m
2 stops
SEA1:45 pmSeattle/Tacoma Intl
$620

Icelandair flights from Seattle to Finland

Our best Icelandair deals on Seattle to Finland flight tickets
Icelandair
Aug 30
SEA7:00 pmSeattle/Tacoma Intl
17h 30m
1 stop
HEL10:30 pmHelsinki-Vantaa
Sep 21
HEL11:55 pmHelsinki-Vantaa
30h 45m
1 stop
SEA8:40 pmSeattle/Tacoma Intl
$857
Icelandair
Aug 25
SEA11:25 pmSeattle/Tacoma Intl
28h 35m
1 stop
HEL2:00 pmHelsinki-Vantaa
Sep 1
HEL3:00 pmHelsinki-Vantaa
30h 45m
1 stop
SEA11:45 amSeattle/Tacoma Intl
$895
Icelandair
Aug 27
SEA3:40 pmSeattle/Tacoma Intl
12h 20m
1 stop
HEL2:00 pmHelsinki-Vantaa
Sep 4
HEL12:30 pmHelsinki-Vantaa
15h 25m
2 stops
SEA5:55 pmSeattle/Tacoma Intl
$912

momondo Fare Finder

 
Customize your flight search to find flights from Seattle to Finland 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, momondo users made 832,500 searches. Data last updated August 17, 2026.
Use the filters below to find and compare flights from Seattle to Finland that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Tue 9/29

3:55 pm-10:35 am

1 stop32h 40m

Helsinki-Vantaa

Tue 10/6

11:15 am-1:45 pm

1 stop12h 30m

$482

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Tue 9/29

3:55 pm-8:25 pm

1 stop18h 30m

Helsinki-Vantaa

Tue 10/6

7:15 am-1:45 pm

2 stops16h 30m

$489

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Thu 8/27

7:00 pm-10:35 pm

2 stops17h 35m

Helsinki-Vantaa

Fri 9/4

7:05 am-5:55 pm

2 stops20h 50m

$662

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 9/7

7:00 pm-9:20 pm

2 stops16h 20m

Helsinki-Vantaa

Mon 9/21

9:20 pm-8:40 pm

3 stops33h 20m

$706

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 9/7

3:40 pm-2:00 pm

1 stop12h 20m

Helsinki-Vantaa

Mon 9/21

11:55 pm-8:40 pm

1 stop30h 45m

$836

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 9/7

3:40 pm-2:00 pm

1 stop12h 20m

Helsinki-Vantaa

Mon 9/21

11:55 pm-8:40 pm

1 stop30h 45m

$837
Quickest round-trip

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 9/7

5:40 pm-1:10 pm

Nonstop9h 30m

Helsinki-Vantaa

Mon 9/21

4:20 pm-4:00 pm

Nonstop9h 40m

$1,009

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 9/7

5:40 pm-1:10 pm

Nonstop9h 30m

Helsinki-Vantaa

Mon 9/21

4:20 pm-4:00 pm

Nonstop9h 40m

$1,021

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 9/14

6:45 pm-4:40 pm

1 stop35h 55m

Helsinki-Vantaa

Fri 9/25

7:00 am-4:35 pm

1 stop19h 35m

$1,022

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 9/13

6:45 pm-4:40 pm

1 stop35h 55m

Helsinki-Vantaa

Wed 9/23

7:00 am-4:35 pm

1 stop19h 35m

$1,022

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Finland from

How to get the cheapest flight ticket from Seattle to Finland

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 cheapest month to fly to Finland?

If you don’t want to visit Finland in January, then you should wait until December to fly from Seattle, when ticket prices are also cheap, with an average price of $807.

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

The cheapest day to depart from Seattle to Finland is on a Wednesday. Travelers who choose to depart for Finland on a Wednesday will often find tickets for as low as $786. Be sure to avoid booking your departure on a Sunday as prices are generally higher than usual. According to our data, the average ticket price to Finland on Sunday is $1,208.

What is the cheapest Seattle/Tacoma Intl to Finland flight route?

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

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

You are more likely to see cheaper flights to Finland from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Finland for around $906 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Finland from Seattle for as low as $742 on momondo.

What cabin class options are available on Seattle to Finland flights?

There are 3 cabin classes available to choose from on Seattle to Finland 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 Finland flights?

No. A direct flight is the cheapest option for a flight between Seattle to Finland.

Cheap Seattle to Finland flight deals and tips

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

Fastest flight time

9h 30m

Direct flights

Tue and Sat

Airports in Finland

28 airports
The fastest flight from Seattle to Finland takes 9h 30m
Direct flights go from Seattle to Finland on Tuesday and Saturday. There are no airlines offering direct flights.
There are 28 airports in Finland. From Seattle there are direct flights to Helsinki-Vantaa (HEL).
Search flight deals

Frequently asked questions about flying from Seattle to Finland

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

    Prices for flights from Seattle/Tacoma Intl Airport to Finland refresh daily.

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

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

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Seattle/Tacoma Intl Airport to Finland.

  • What documentation or ID do you need to fly to Finland?

    The travel and health documents required for your trip to Finland can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Finland. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

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

Best airlines flying from Seattle to Finland

Compare and see reviews for airlines that fly from Seattle to Finland with momondo
Airline
Rating
Free Cancellation
Price
Scandinavian AirlinesPriceFrom $353Free CancellationRating
7.4
1,952 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $514Free CancellationRating
6.9
731 reviews
Search Icelandair flights
DeltaPriceFrom $526Free CancellationRating
7.8
8,505 reviews
Search Delta flights
FinnairPriceFrom $790Free CancellationRating
7.6
1,426 reviews
Search Finnair flights

Why use momondo?

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

It is quick and easy to find Seattle to Finland flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Finland that suits you.

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

Yes. All flights to Finland 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 Finland?

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Finland from Seattle.

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

Of course. momondo tracks the price of Seattle to Finland flights. All you need is a valid email address and we will do the rest; it is that quick and easy.

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