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Cheap flights from Seattle to Finland from $517

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Seattle to Finland departing on 2/27. 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.
Scandinavian Airlines Logo
2:00 pm - 8:20 pmSEA-HEL
20h 20m2 stops
Scandinavian Airlines Logo
11:15 am - 11:27 pmHEL-SEA
22h 12m2 stops
$517Scandinavian Airlines
Find Deal
Fri, Feb 27 - Tue, May 12
Scandinavian Airlines Logo
7:20 am - 10:40 amSEA-HEL
17h 20m2 stops
Scandinavian Airlines Logo
6:15 am - 10:25 pmHEL-SEA
26h 10m2 stops
$536Scandinavian Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 3
Scandinavian Airlines Logo
2:00 pm - 8:20 pmSEA-HEL
20h 20m2 stops
Scandinavian Airlines Logo
7:00 am - 6:56 pmHEL-SEA
21h 56m3 stops
$543Scandinavian Airlines
Find Deal
Tue, Feb 24 - Tue, Mar 3
Scandinavian Airlines Logo
12:00 pm - 10:40 amSEA-HEL
37h 40m2 stops
Scandinavian Airlines Logo
6:15 am - 10:16 pmHEL-SEA
25h 01m2 stops
$544Scandinavian Airlines
Find Deal
Fri, Mar 13 - Tue, Mar 24
Icelandair Logo
3:35 pm - 12:55 pmSEA-HEL
12h 20m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-SEA
13h 05m1 stop
$650Icelandair
Find Deal
Thu, Oct 30 - Wed, Nov 12
Icelandair Logo
3:35 pm - 12:55 pmSEA-HEL
12h 20m1 stop
Icelandair Logo
1:55 pm - 6:00 pmHEL-SEA
13h 05m1 stop
$665Icelandair
Find Deal
Fri, Mar 13 - Tue, Mar 24
Multiple Airlines Logo
2:35 pm - 8:20 pmSEA-HEL
19h 45m2 stops
Multiple Airlines Logo
10:10 am - 5:00 pmHEL-SEA
40h 50m2 stops
$749Multiple Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
Multiple Airlines Logo
3:10 pm - 10:25 amSEA-HEL
33h 15m3 stops
Multiple Airlines Logo
6:15 am - 1:20 pmHEL-SEA
17h 05m2 stops
$786Multiple Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
Lufthansa Logo
3:10 pm - 6:50 pmSEA-HEL
17h 40m1 stop
Lufthansa Logo
7:35 pm - 9:31 amHEL-SEA
47h 56m2 stops
$811Lufthansa
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Sun, Dec 28 - Mon, Jan 12
Finnair Logo
1:48 pm - 3:55 pmSEA-OUL
17h 07m2 stops
Finnair Logo
8:15 am - 11:08 pmOUL-SEA
24h 53m2 stops
$1,356Finnair
Find Deal
Sat, Mar 28 - Wed, Apr 1

Lufthansa flights from Seattle to Finland

Our best Lufthansa deals on Seattle to Finland flight tickets
Lufthansa
Dec 28
SEA3:10 pmSeattle/Tacoma Intl
17h 40m
1 stop
HEL6:50 pmHelsinki-Vantaa
Jan 12
HEL7:35 pmHelsinki-Vantaa
47h 56m
2 stops
SEA9:31 amSeattle/Tacoma Intl
$811
Find similar
Lufthansa
Oct 22
SEA6:50 pmSeattle/Tacoma Intl
14h 05m
1 stop
HEL6:55 pmHelsinki-Vantaa
Oct 31
HEL6:55 amHelsinki-Vantaa
15h 15m
1 stop
SEA1:10 pmSeattle/Tacoma Intl
$852
Find similar

Icelandair flights from Seattle to Finland

Our best Icelandair deals on Seattle to Finland flight tickets
Icelandair
Oct 30
SEA3:35 pmSeattle/Tacoma Intl
12h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Nov 12
HEL1:55 pmHelsinki-Vantaa
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$650
Find similar
Icelandair
Mar 13
SEA3:35 pmSeattle/Tacoma Intl
12h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Mar 24
HEL1:55 pmHelsinki-Vantaa
13h 05m
1 stop
SEA6:00 pmSeattle/Tacoma Intl
$665
Find similar
Icelandair
Nov 14
SEA2:35 pmSeattle/Tacoma Intl
12h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Nov 21
HEL1:55 pmHelsinki-Vantaa
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$684
Find similar

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 October 16, 2025.
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

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Fri 2/27

2:00 pm-8:20 pm

2 stops20h 20m

Helsinki-Vantaa

Tue 5/12

11:15 am-11:27 pm

2 stops22h 12m

$517

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Tue 2/24

7:20 am-10:40 am

2 stops17h 20m

Helsinki-Vantaa

Tue 3/3

6:15 am-10:25 pm

2 stops26h 10m

$536

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Tue 2/24

2:00 pm-8:20 pm

2 stops20h 20m

Helsinki-Vantaa

Tue 3/3

7:00 am-6:56 pm

3 stops21h 56m

$543

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Fri 3/13

12:00 pm-10:40 am

2 stops37h 40m

Helsinki-Vantaa

Tue 3/24

6:15 am-10:16 pm

2 stops25h 01m

$544

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Thu 10/30

3:35 pm-12:55 pm

1 stop12h 20m

Helsinki-Vantaa

Wed 11/12

1:55 pm-5:00 pm

1 stop13h 05m

$650

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Fri 3/13

3:35 pm-12:55 pm

1 stop12h 20m

Helsinki-Vantaa

Tue 3/24

1:55 pm-6:00 pm

1 stop13h 05m

$665

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sun 11/30

2:35 pm-8:20 pm

2 stops19h 45m

Helsinki-Vantaa

Sun 12/7

10:10 am-5:00 pm

2 stops40h 50m

$749

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sun 11/30

3:10 pm-10:25 am

3 stops33h 15m

Helsinki-Vantaa

Sun 12/7

6:15 am-1:20 pm

2 stops17h 05m

$786

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sun 12/28

3:10 pm-6:50 pm

1 stop17h 40m

Helsinki-Vantaa

Mon 1/12

7:35 pm-9:31 am

2 stops47h 56m

$811

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sat 3/28

1:48 pm-3:55 pm

2 stops17h 07m

Oulu

Wed 4/1

8:15 am-11:08 pm

2 stops24h 53m

$1,356

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 14 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 October to fly from Seattle, when ticket prices are also cheap, with an average price of $571.

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

The cheapest day to depart from Seattle to Finland is on a Sunday. Travelers who choose to depart for Finland on a Sunday will often find tickets for as low as $911. Be sure to avoid booking your departure on a Tuesday as prices are generally higher than usual. According to our data, the average ticket price to Finland on Tuesday is $1,118.

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

The cheapest time of day to fly to Finland is in the morning when flights can be purchased for as low as $788. In contrast, the most expensive time of day to depart to Finland is in the afternoon when prices are around $965.

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 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 $820 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 $619 on momondo.

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

There are 3 cabin classes available to choose from on Seattle/Tacoma Intl 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

Best Price Found

$591

Direct flights

None
The best one-way flight to Finland from Seattle in the past 72 hours is $591. The best round-trip flight deal from Seattle to Finland found on momondo in the last 72 hours is $499.
There are no direct flights from Seattle to Finland. Popular non-direct route for this connection is Seattle/Tacoma Intl Airport - Helsinki-Vantaa Airport.
Search flight deals

  • 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 $322Free CancellationRating
7.4
1,533 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $423Free CancellationRating
7.0
556 reviews
Search Icelandair flights
KLMPriceFrom $536Free CancellationRating
7.7
1,404 reviews
Search KLM flights
American AirlinesPriceFrom $601Free CancellationRating
7.2
11,042 reviews
Search American Airlines flights
FinnairPriceFrom $662Free CancellationRating
7.6
1,332 reviews
Search Finnair flights
LufthansaPriceFrom $721Free CancellationRating
6.8
7,494 reviews
Search Lufthansa flights
British AirwaysPriceFrom $725Free CancellationRating
6.7
7,456 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.

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