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Cheap flights from Seattle to Helsinki from R9 307

1 adult
1 adult, Economy, 0 bags

Find the cheapest flights from Seattle to Helsinki

Cheap return flights

Enter your travel dates to find the best prices.
Scandinavian Airlines Logo
15:55 - 1:30SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
23h 35m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
11:15 - 23:13HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
21h 58m2 stops Kastrup Copenhagen San Francisco
R10 932Scandinavian Airlines
Sun, Oct 11 - Thu, Oct 15
Scandinavian Airlines Logo
15:55 - 15:45SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
37h 50m2 stops Kastrup Copenhagen Stockholm Arlanda
Scandinavian Airlines Logo
11:15 - 23:13HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
21h 58m2 stops Kastrup Copenhagen San Francisco
R11 044Scandinavian Airlines
Sun, Oct 11 - Thu, Oct 15
Scandinavian Airlines Logo
15:55 - 20:35SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
18h 40m2 stops Kastrup Copenhagen Stockholm Arlanda
Scandinavian Airlines Logo
21:15 - 13:45HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
50h 30m2 stops Stockholm Arlanda Kastrup Copenhagen
R11 251Scandinavian Airlines
Tue, Sep 29 - Wed, Oct 7
Scandinavian Airlines Logo
15:55 - 15:20SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
13h 25m1 stop Kastrup Copenhagen
Scandinavian Airlines Logo
6:10 - 23:13HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
27h 03m2 stops Kastrup Copenhagen San Francisco
R11 411Scandinavian Airlines
Sun, Oct 11 - Thu, Oct 15
Scandinavian Airlines Logo
15:55 - 23:50SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
21h 55m2 stops Kastrup Copenhagen Stockholm Arlanda
Scandinavian Airlines Logo
6:10 - 23:13HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
27h 03m2 stops Kastrup Copenhagen San Francisco
R11 522Scandinavian Airlines
Sun, Oct 11 - Thu, Oct 15
Scandinavian Airlines Logo
7:20 - 15:25SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
22h 05m2 stops Chicago O'Hare Intl Kastrup Copenhagen
Scandinavian Airlines Logo
7:00 - 20:24HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
23h 24m3 stops Stockholm Arlanda Kastrup Copenhagen San Francisco
R13 689Scandinavian Airlines
Tue, Dec 1 - Wed, Dec 9
Scandinavian Airlines Logo
12:31 - 10:35SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
36h 04m2 stops Los Angeles Los Angeles Kastrup Copenhagen
Scandinavian Airlines Logo
6:15 - 20:24HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
24h 09m2 stops Kastrup Copenhagen San Francisco
R13 801Scandinavian Airlines
Sat, Nov 28 - Thu, Dec 10
Icelandair Logo
15:40 - 23:00SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
21h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
15:00 - 17:55HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
12h 55m1 stop Reykjavik Keflavik Intl
R13 897Icelandair
Sun, Oct 11 - Thu, Oct 15
Icelandair Logo
15:40 - 14:00SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
12h 20m1 stop Reykjavik Keflavik Intl
Icelandair Logo
14:00 - 18:00HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
13h 00m1 stop Reykjavik Keflavik Intl
R13 929Icelandair
Wed, Oct 21 - Thu, Oct 29
Scandinavian Airlines Logo
10:39 - 15:25SEA  Seattle/Tacoma Intl-HEL Helsinki-Vantaa
18h 46m2 stops Chicago O'Hare Intl Kastrup Copenhagen
Scandinavian Airlines Logo
7:00 - 20:24HEL  Helsinki-Vantaa-SEA Seattle/Tacoma Intl
23h 24m3 stops Stockholm Arlanda Kastrup Copenhagen San Francisco
R14 024Scandinavian Airlines
Thu, Dec 3 - Wed, Dec 16

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Scandinavian Airlines flights from Seattle to Helsinki

Our best Scandinavian Airlines deals on Seattle to Helsinki flight tickets
Scandinavian Airlines
Oct 11
SEA15:55Seattle/Tacoma Intl
23h 35m
1 stop
HEL1:30Helsinki-Vantaa
Oct 15
HEL11:15Helsinki-Vantaa
21h 58m
2 stops
SEA23:13Seattle/Tacoma Intl
R10 932
Scandinavian Airlines
Oct 11
SEA15:55Seattle/Tacoma Intl
37h 50m
2 stops
HEL15:45Helsinki-Vantaa
Oct 15
HEL11:15Helsinki-Vantaa
21h 58m
2 stops
SEA23:13Seattle/Tacoma Intl
R11 044
Scandinavian Airlines
Sept 29
SEA15:55Seattle/Tacoma Intl
18h 40m
2 stops
HEL20:35Helsinki-Vantaa
Oct 7
HEL21:15Helsinki-Vantaa
50h 30m
2 stops
SEA13:45Seattle/Tacoma Intl
R11 251

Turkish Airlines flights from Seattle to Helsinki

Our best Turkish Airlines deals on Seattle to Helsinki flight tickets
Turkish Airlines
Nov 10
SEA19:05Seattle/Tacoma Intl
37h 05m
1 stop
HEL18:10Helsinki-Vantaa
Nov 17
HEL19:05Helsinki-Vantaa
32h 05m
1 stop
SEA17:10Seattle/Tacoma Intl
R14 072
Turkish Airlines
Oct 20
SEA19:15Seattle/Tacoma Intl
37h 30m
1 stop
HEL18:45Helsinki-Vantaa
Oct 29
HEL19:05Helsinki-Vantaa
32h 05m
1 stop
SEA18:10Seattle/Tacoma Intl
R14 104
Turkish Airlines
Nov 11
SEA19:05Seattle/Tacoma Intl
37h 05m
1 stop
HEL18:10Helsinki-Vantaa
Nov 24
HEL12:25Helsinki-Vantaa
38h 45m
1 stop
SEA17:10Seattle/Tacoma Intl
R14 550

momondo Fare Finder

 
Use the filters below to find and compare flights from Seattle to Helsinki that are best for you.

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Price

Cheapest return flight

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 11/10

15:55-1:30

1 stop23h 35m

Helsinki-Vantaa

Thu 15/10

11:15-23:13

2 stops21h 58m

R10 932

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 11/10

15:55-15:45

2 stops37h 50m

Helsinki-Vantaa

Thu 15/10

11:15-23:13

2 stops21h 58m

R11 044

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Tue 29/9

15:55-20:35

2 stops18h 40m

Helsinki-Vantaa

Wed 7/10

21:15-13:45

2 stops50h 30m

R11 251

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 11/10

15:55-15:20

1 stop13h 25m

Helsinki-Vantaa

Thu 15/10

6:10-23:13

2 stops27h 03m

R11 411

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 11/10

15:55-23:50

2 stops21h 55m

Helsinki-Vantaa

Thu 15/10

6:10-23:13

2 stops27h 03m

R11 522

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Tue 1/12

7:20-15:25

2 stops22h 05m

Helsinki-Vantaa

Wed 9/12

7:00-20:24

3 stops23h 24m

R13 689

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sat 28/11

12:31-10:35

2 stops36h 04m

Helsinki-Vantaa

Thu 10/12

6:15-20:24

2 stops24h 09m

R13 801

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 11/10

15:40-23:00

1 stop21h 20m

Helsinki-Vantaa

Thu 15/10

15:00-17:55

1 stop12h 55m

R13 897
Fastest return journey

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Wed 21/10

15:40-14:00

1 stop12h 20m

Helsinki-Vantaa

Thu 29/10

14:00-18:00

1 stop13h 00m

R13 928

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Thu 3/12

10:39-15:25

2 stops18h 46m

Helsinki-Vantaa

Wed 16/12

7:00-20:24

3 stops23h 24m

R14 024

Flights are sorted by cheapest return flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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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?

Prices are currently typical for flights on this route.

Typical prices usually range from R9 626 to R17 291.
The lowest price recently found on this route was R10 932.

What is the cheapest month to fly to Helsinki?

In general, January is the cheapest month to fly from Seattle to Helsinki. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around R8 654. If you are unable to visit Helsinki during the month of January, then departing from Seattle during the month September is also very affordable. Most momondo users find prices during this month for around R11 841.

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

You are more likely to see cheaper flights to Helsinki from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around R14 444 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Seattle for as low as R12 988 on momondo.

How have Seattle to Helsinki flight prices changed over time?

As of September 2026, prices for Seattle to Helsinki flights are approximately 34% cheaper 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 return 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

R9 307

Direct flights

None
The best one-way flight to Helsinki from Seattle in the past 72 hours is R9 307. The best return flight deal from Seattle to Helsinki found on momondo in the last 72 hours is R10 932.
There are no direct flights from Seattle to Helsinki. There are no popular flight routes from Seattle to Helsinki.
Search flight deals

Frequently asked questions about flying from Seattle to Helsinki

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

    The straight-line distance from Seattle/Tacoma Intl to Helsinki-Vantaa is 7665,8 km.

  • 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 refresh daily.

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

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and stopovers. It is recommended that you verify 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 required travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's licence and a passport valid for six months after your intended arrival at Helsinki-Vantaa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

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

Travelling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa

Why use momondo?

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

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Seattle to Helsinki for you.

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

momondo does allow users to show only those flights to Helsinki from Seattle which offer a flexible booking policy as well as other useful filters and features.

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?

Price alerts on flights to Helsinki from Seattle are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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