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Cheap flights from Seattle to Finland from $400

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 4/28. 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
0 bags

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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.
Icelandair Logo
2:35 pm - 12:55 pmSEA-HEL
12h 20m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-SEA
13h 05m1 stop
$490Icelandair
Find Deal
Sat, Jan 10 - Fri, Jan 23
Icelandair Logo
2:35 pm - 12:55 pmSEA-HEL
12h 20m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-SEA
13h 05m1 stop
$491Icelandair
Find Deal
Wed, Jan 21 - Sun, Feb 8
Icelandair Logo
2:35 pm - 12:55 pmSEA-HEL
12h 20m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-SEA
13h 05m1 stop
$497Icelandair
Find Deal
Fri, Jan 16 - Fri, Jan 30
Scandinavian Airlines Logo
7:10 am - 1:35 amSEA-HEL
32h 25m2 stops
Scandinavian Airlines Logo
6:15 am - 10:52 pmHEL-SEA
26h 37m2 stops
$513Scandinavian Airlines
Find Deal
Wed, Jan 21 - Sat, Feb 7
Icelandair Logo
2:35 pm - 12:55 pmSEA-HEL
12h 20m1 stop
Icelandair Logo
1:55 pm - 5:00 pmHEL-SEA
13h 05m1 stop
$517Icelandair
Find Deal
Sun, Jan 11 - Sat, Jan 17
Scandinavian Airlines Logo
7:15 am - 3:25 pmSEA-HEL
22h 10m2 stops
Scandinavian Airlines Logo
11:20 am - 10:13 pmHEL-SEA
20h 53m2 stops
$522Scandinavian Airlines
Find Deal
Sat, Jan 10 - Fri, Jan 23
Multiple Airlines Logo
2:35 pm - 11:40 pmSEA-HEL
23h 05m2 stops
Multiple Airlines Logo
5:30 am - 5:00 pmHEL-SEA
21h 30m3 stops
$534Multiple Airlines
Find Deal
Sat, Jan 17 - Sat, Jan 24
Finnair Logo
1:33 pm - 4:55 pmSEA-OUL
17h 22m2 stops
Finnair Logo
10:50 am - 11:05 pmOUL-SEA
22h 15m2 stops
$980Finnair
Find Deal
Sun, Apr 12 - Mon, Apr 20
Multiple Airlines Logo
8:00 am - 1:55 pmSEA-OUL
19h 55m2 stops
Multiple Airlines Logo
2:45 pm - 12:20 pmOUL-SEA
31h 35m1 stop
$988Multiple Airlines
Find Deal
Sun, Apr 12 - Mon, Apr 20
Finnair Logo
1:25 pm - 9:15 pmSEA-OUL
21h 50m2 stops
Finnair Logo
8:50 pm - 10:43 pmOUL-SEA
35h 53m2 stops
$1,391Finnair
Find Deal
Tue, Feb 24 - Sat, Feb 28

Scandinavian Airlines flights from Seattle to Finland

Our best Scandinavian Airlines deals on Seattle to Finland flight tickets
Scandinavian Airlines
Jan 21
SEA7:10 amSeattle/Tacoma Intl
32h 25m
2 stops
HEL1:35 amHelsinki-Vantaa
Feb 7
HEL6:15 amHelsinki-Vantaa
26h 37m
2 stops
SEA10:52 pmSeattle/Tacoma Intl
$513
Find similar
Scandinavian Airlines
Jan 10
SEA7:15 amSeattle/Tacoma Intl
22h 10m
2 stops
HEL3:25 pmHelsinki-Vantaa
Jan 23
HEL11:20 amHelsinki-Vantaa
20h 53m
2 stops
SEA10:13 pmSeattle/Tacoma Intl
$522
Find similar
Scandinavian Airlines
Jan 22
SEA7:15 amSeattle/Tacoma Intl
22h 10m
2 stops
HEL3:25 pmHelsinki-Vantaa
Feb 9
HEL6:15 amHelsinki-Vantaa
22h 43m
2 stops
SEA6:58 pmSeattle/Tacoma Intl
$536
Find similar

Icelandair flights from Seattle to Finland

Our best Icelandair deals on Seattle to Finland flight tickets
Icelandair
Jan 10
SEA2:35 pmSeattle/Tacoma Intl
12h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Jan 23
HEL1:55 pmHelsinki-Vantaa
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$490
Find similar
Icelandair
Jan 21
SEA2:35 pmSeattle/Tacoma Intl
12h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Feb 8
HEL1:55 pmHelsinki-Vantaa
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$491
Find similar
Icelandair
Jan 16
SEA2:35 pmSeattle/Tacoma Intl
12h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Jan 30
HEL1:55 pmHelsinki-Vantaa
13h 05m
1 stop
SEA5:00 pmSeattle/Tacoma Intl
$497
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 November 26, 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

Sat 1/10

2:35 pm-12:55 pm

1 stop12h 20m

Helsinki-Vantaa

Fri 1/23

1:55 pm-5:00 pm

1 stop13h 05m

$490

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Wed 1/21

2:35 pm-12:55 pm

1 stop12h 20m

Helsinki-Vantaa

Sun 2/8

1:55 pm-5:00 pm

1 stop13h 05m

$491

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Fri 1/16

2:35 pm-12:55 pm

1 stop12h 20m

Helsinki-Vantaa

Fri 1/30

1:55 pm-5:00 pm

1 stop13h 05m

$497

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Wed 1/21

7:10 am-1:35 am

2 stops32h 25m

Helsinki-Vantaa

Sat 2/7

6:15 am-10:52 pm

2 stops26h 37m

$513

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sun 1/11

2:35 pm-12:55 pm

1 stop12h 20m

Helsinki-Vantaa

Sat 1/17

1:55 pm-5:00 pm

1 stop13h 05m

$517

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sat 1/10

7:15 am-3:25 pm

2 stops22h 10m

Helsinki-Vantaa

Fri 1/23

11:20 am-10:13 pm

2 stops20h 53m

$522

SeattleHelsinki

SEA - HEL

SEAHEL

Seattle/Tacoma Intl

Sat 1/17

2:35 pm-11:40 pm

2 stops23h 05m

Helsinki-Vantaa

Sat 1/24

5:30 am-5:00 pm

3 stops21h 30m

$534

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sun 4/12

1:33 pm-4:55 pm

2 stops17h 22m

Oulu

Mon 4/20

10:50 am-11:05 pm

2 stops22h 15m

$980

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Sun 4/12

8:00 am-1:55 pm

2 stops19h 55m

Oulu

Mon 4/20

2:45 pm-12:20 pm

1 stop31h 35m

$988

SeattleOulu

SEA - OUL

SEAOUL

Seattle/Tacoma Intl

Tue 2/24

1:25 pm-9:15 pm

2 stops21h 50m

Oulu

Sat 2/28

8:50 pm-10:43 pm

2 stops35h 53m

$1,391

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 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 Monday. Travelers who choose to depart for Finland on a Monday will often find tickets for as low as $907. 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 $1,133.

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 $956.

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 $821 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 $597 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?

You could potentially save up to 23% on your flight if you consider stops on a Seattle to Finland flight.

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

$351

Fastest flight time

9h 30m

Direct flights

Wed

Airports in Finland

1 airport
The best one-way flight to Finland from Seattle in the past 72 hours is $351. The best round-trip flight deal from Seattle to Finland found on momondo in the last 72 hours is $571.
The fastest flight from Seattle to Finland takes 9h 30m
Direct flights go from Seattle to Finland on Wednesday. There are no airlines offering direct flights.
There is 1 airport near Finland: Helsinki-Vantaa (HEL)
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
1,589 reviews
Search Scandinavian Airlines flights
IcelandairPriceFrom $424Free CancellationRating
7.0
581 reviews
Search Icelandair flights
DeltaPriceFrom $526Free CancellationRating
7.9
7,998 reviews
Search Delta flights
KLMPriceFrom $536Free CancellationRating
7.7
1,422 reviews
Search KLM flights
American AirlinesPriceFrom $601Free CancellationRating
7.2
11,038 reviews
Search American Airlines flights
FinnairPriceFrom $662Free CancellationRating
7.6
1,334 reviews
Search Finnair flights
British AirwaysPriceFrom $725Free CancellationRating
6.7
7,539 reviews
Search British Airways flights
LufthansaPriceFrom $817Free CancellationRating
6.8
7,594 reviews
Search Lufthansa 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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