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Cheap flights from Seattle to Finland from $296

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 9/9. 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 Finland

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:40 pm - 6:20 pm
SEA
-
HEL
16h 40m
2 stops
Multiple Airlines Logo
8:30 am - 8:40 pm
HEL
-
SEA
22h 10m
2 stops
$762Multiple Airlines
Tue, Sep 8 - Tue, Sep 15
Multiple Airlines Logo
3:40 pm - 4:40 pm
SEA
-
HEL
15h 00m
2 stops
Multiple Airlines Logo
7:05 am - 8:40 pm
HEL
-
SEA
23h 35m
2 stops
$780Multiple Airlines
Mon, Jul 20 - Thu, Aug 6
Multiple Airlines Logo
3:40 pm - 8:20 am
SEA
-
HEL
30h 40m
3 stops
Multiple Airlines Logo
7:05 am - 8:40 pm
HEL
-
SEA
23h 35m
2 stops
$807Multiple Airlines
Mon, Jul 20 - Thu, Aug 6
Multiple Airlines Logo
5:40 pm - 1:10 pm
SEA
-
HEL
9h 30mnonstop
Multiple Airlines Logo
11:55 pm - 10:22 am
HEL
-
SEA
44h 27m
3 stops
$809Multiple Airlines
Mon, Sep 7 - Tue, Sep 22
Multiple Airlines Logo
5:40 pm - 1:10 pm
SEA
-
HEL
9h 30mnonstop
Multiple Airlines Logo
9:05 pm - 10:22 am
HEL
-
SEA
47h 17m
3 stops
$817Multiple Airlines
Mon, Sep 7 - Thu, Sep 24
Icelandair Logo
3:40 pm - 7:45 pm
SEA
-
HEL
18h 05m
2 stops
Icelandair Logo
11:40 am - 11:45 am
HEL
-
SEA
34h 05m
2 stops
$821Icelandair
Mon, Aug 3 - Mon, Sep 7
Icelandair Logo
3:40 pm - 6:40 pm
SEA
-
HEL
17h 00m
2 stops
Icelandair Logo
11:40 am - 5:55 pm
HEL
-
SEA
16h 15m
2 stops
$822Icelandair
Tue, Sep 1 - Tue, Sep 15
Icelandair Logo
3:40 pm - 6:40 pm
SEA
-
HEL
17h 00m
2 stops
Icelandair Logo
11:40 am - 5:55 pm
HEL
-
SEA
16h 15m
2 stops
$823Icelandair
Tue, Sep 1 - Tue, Sep 15
Icelandair Logo
3:40 pm - 6:40 pm
SEA
-
HEL
17h 00m
2 stops
Icelandair Logo
11:40 am - 5:55 pm
HEL
-
SEA
40h 15m
2 stops
$824Icelandair
Wed, Sep 9 - Wed, Sep 23
Turkish Airlines Logo
7:10 pm - 1:35 pm
SEA
-
OUL
32h 25m
2 stops
Turkish Airlines Logo
5:35 pm - 5:15 pm
OUL
-
SEA
33h 40m
2 stops
$1,377Turkish Airlines
Mon, Jul 6 - Mon, Jul 20

Icelandair flights from Seattle to Finland

Our best Icelandair deals on Seattle to Finland flight tickets
Icelandair
Aug 3
SEA3:40 pmSeattle/Tacoma Intl
18h 05m
2 stops
HEL7:45 pmHelsinki-Vantaa
Sep 7
HEL11:40 amHelsinki-Vantaa
34h 05m
2 stops
SEA11:45 amSeattle/Tacoma Intl
$821
Icelandair
Sep 1
SEA3:40 pmSeattle/Tacoma Intl
17h 00m
2 stops
HEL6:40 pmHelsinki-Vantaa
Sep 15
HEL11:40 amHelsinki-Vantaa
16h 15m
2 stops
SEA5:55 pmSeattle/Tacoma Intl
$822
Icelandair
Sep 1
SEA3:40 pmSeattle/Tacoma Intl
17h 00m
2 stops
HEL6:40 pmHelsinki-Vantaa
Sep 15
HEL11:40 amHelsinki-Vantaa
16h 15m
2 stops
SEA5:55 pmSeattle/Tacoma Intl
$823

Lufthansa flights from Seattle to Finland

Our best Lufthansa deals on Seattle to Finland flight tickets
Lufthansa
May 19
SEA2:10 pmSeattle/Tacoma Intl
16h 50m
1 stop
HEL5:00 pmHelsinki-Vantaa
Jun 2
HEL12:50 pmHelsinki-Vantaa
14h 09m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$1,062
Lufthansa
May 27
SEA2:55 pmSeattle/Tacoma Intl
18h 00m
2 stops
HEL6:55 pmHelsinki-Vantaa
Jun 4
HEL6:35 amHelsinki-Vantaa
15h 45m
1 stop
SEA12:20 pmSeattle/Tacoma Intl
$1,078
Lufthansa
May 27
SEA2:55 pmSeattle/Tacoma Intl
18h 00m
2 stops
HEL6:55 pmHelsinki-Vantaa
Jun 4
HEL12:50 pmHelsinki-Vantaa
14h 09m
1 stop
SEA4:59 pmSeattle/Tacoma Intl
$1,079

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 May 14, 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 - HEL

SEAHEL

Seattle/Tacoma Intl

Tue 9/8

3:40 pm-6:20 pm

2 stops16h 40m

Helsinki-Vantaa

Tue 9/15

8:30 am-8:40 pm

2 stops22h 10m

$762

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Mon 7/20

3:40 pm-4:40 pm

2 stops15h 00m

Helsinki-Vantaa

Thu 8/6

7:05 am-8:40 pm

2 stops23h 35m

$780

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Mon 7/20

3:40 pm-8:20 am

3 stops30h 40m

Helsinki-Vantaa

Thu 8/6

7:05 am-8:40 pm

2 stops23h 35m

$807

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Mon 9/7

5:40 pm-1:10 pm

Nonstop9h 30m

Helsinki-Vantaa

Tue 9/22

11:55 pm-10:22 am

3 stops44h 27m

$809

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Mon 9/7

5:40 pm-1:10 pm

Nonstop9h 30m

Helsinki-Vantaa

Thu 9/24

9:05 pm-10:22 am

3 stops47h 17m

$817

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Mon 8/3

3:40 pm-7:45 pm

2 stops18h 05m

Helsinki-Vantaa

Mon 9/7

11:40 am-11:45 am

2 stops34h 05m

$821
Quickest round-trip

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Tue 9/1

3:40 pm-6:40 pm

2 stops17h 00m

Helsinki-Vantaa

Tue 9/15

11:40 am-5:55 pm

2 stops16h 15m

$822

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Tue 9/1

3:40 pm-6:40 pm

2 stops17h 00m

Helsinki-Vantaa

Tue 9/15

11:40 am-5:55 pm

2 stops16h 15m

$823

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Wed 9/9

3:40 pm-6:40 pm

2 stops17h 00m

Helsinki-Vantaa

Wed 9/23

11:40 am-5:55 pm

2 stops40h 15m

$824

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Mon 7/6

7:10 pm-1:35 pm

2 stops32h 25m

Oulu

Mon 7/20

5:35 pm-5:15 pm

2 stops33h 40m

$1,377

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 August to fly from Seattle, when ticket prices are also cheap, with an average price of $309.

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 $777. 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 $1,154.

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 $832 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 $542 on momondo.

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

Best Price Found

$471

Fastest flight time

9h 30m

Direct flights

Mon, Tue, Wed, Sat and Sun

Airports in Finland

28 airports
The best one-way flight to Finland from Seattle in the past 72 hours is $471. The best round-trip flight deal from Seattle to Finland found on momondo in the last 72 hours is $1,188.
The fastest flight from Seattle to Finland takes 9h 30m
Direct flights go from Seattle to Finland on Monday, Tuesday, Wednesday, Saturday and Sunday. 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 $323Free CancellationRating
7.4
1,777 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $424Free CancellationRating
7.0
654 reviews
Search Icelandair flights
American AirlinesPriceFrom $496Free CancellationRating
7.1
11,663 reviews
Search American Airlines flights
KLMPriceFrom $536Free CancellationRating
7.8
1,517 reviews
Search KLM flights
FinnairPriceFrom $700Free CancellationRating
7.6
1,393 reviews
Search Finnair flights
British AirwaysPriceFrom $725Free CancellationRating
6.7
7,980 reviews
Search British Airways 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.

An easier way to manage your Finland trip

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