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Cheap flights from Seattle to Helsinki from C$ 428

SEA — HEL
29 Nov — 6 Dec1
1 adult
1 adult, Economy, 0 bags

Cheap flight deals from Seattle to Helsinki

Enter your travel dates to find the best prices.

Cheapest flights from Seattle to Helsinki

Sun 15/112:35 p.m. -
1 stop12h 25m
Thu 19/112:00 p.m. -
1 stop13h 00m
Deal found 27/10C$ 1,171
Sat 5/1210:39 a.m. -
3 stops19h 56m
Tue 8/126:15 a.m. -
2 stops26h 54m
Deal found 28/10C$ 1,199
Mon 23/117:05 p.m. -
1 stop37h 05m
Tue 8/127:05 p.m. -
1 stop32h 05m
Deal found 25/10C$ 1,234
Tue 10/117:38 a.m. -
2 stops21h 47m
Tue 17/117:00 a.m. -
3 stops23h 13m
Deal found 29/10C$ 1,239
Tue 27/108:05 p.m. -
1 stop30h 15m
Sun 8/1112:15 p.m. -
1 stop38h 55m
Deal found 27/10C$ 1,317
Sun 15/117:27 a.m. -
2 stops32h 08m
Thu 19/116:15 a.m. -
2 stops27h 38m
Deal found 29/10C$ 1,376

Find flight deals from Seattle to Helsinki

Round-trip from

C$ 1,171

One-way from

C$ 428

Popular in

June

Cheapest in

January

Average price

C$ 1,228
Icelandair
  • Icelandair
  • 15/11-19/11
  • 2 total stops
  • 25h 25m total
  • Seattle to Helsinki
Search Deals
6/12-31/12
  • 6/12-31/12
  • 2 total stops
  • 18h 45m total
  • Seattle to Helsinki
Search Deals
Highest demand for flights based on searches. 16% potential increase in price (C$ 350 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 2% potential price decrease (C$ 48 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in October 2026
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Cheapflights Fare Finder

 
Use the filters below to find and compare flights from Seattle to Helsinki 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

Sun 6/12

2:35 p.m.-7:20 p.m.

2 stops18h 45m

Helsinki-Vantaa

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 428

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 9/11

7:05 p.m.-11:20 a.m.

1 stop30h 15m

Helsinki-Vantaa

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 817

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 31/1

7:05 p.m.-11:00 a.m.

1 stop29h 55m

Helsinki-Vantaa

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 817
Quickest round-trip

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 8/11

3:25 p.m.-4:40 p.m.

1 stop15h 15m

Helsinki-Vantaa

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 891

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Tue 15/12

6:15 a.m.-11:50 a.m.

2 stops43h 35m

Helsinki-Vantaa

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 1,006

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Mon 14/12

1:50 p.m.-4:50 p.m.

1 stop17h 00m

Helsinki-Vantaa

Wed 31/12

12:00 a.m.-2:00 p.m.

Nonstop0h 00m

C$ 1,150

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sat 5/12

10:39 a.m.-4:35 p.m.

3 stops19h 56m

Helsinki-Vantaa

Sat 12/12

6:15 a.m.-11:09 p.m.

2 stops26h 54m

C$ 1,199

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Wed 11/11

7:05 p.m.-11:20 a.m.

1 stop30h 15m

Helsinki-Vantaa

Tue 17/11

7:05 p.m.-5:10 p.m.

1 stop32h 05m

C$ 1,234

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Tue 10/11

7:38 a.m.-3:25 p.m.

2 stops21h 47m

Helsinki-Vantaa

Tue 17/11

7:00 a.m.-8:13 p.m.

3 stops23h 13m

C$ 1,239

SeattleHelsinki

SEA Seattle/Tacoma Intl - HEL Helsinki-Vantaa

SEAHEL

Seattle/Tacoma Intl

Sun 15/11

7:27 a.m.-1:35 a.m.

2 stops32h 08m

Helsinki-Vantaa

Thu 19/11

6:15 a.m.-11:53 p.m.

2 stops27h 38m

C$ 1,376

Flights are sorted by cheapest round-trip flights first.

Deals found on 26/10

Showing 1-10 of 15 resultsSorted by cheapest first
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Best time to book a flight from Seattle to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Seattle with our price prediction graph.
Estimated round-trip price

Cheapflights Insights

Everything you need to know about your flight from Seattle to Helsinki

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

To ensure you get the cheapest price possible for a flight from Seattle to Helsinki, you should look to book at least 13 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Seattle to Helsinki?

Currently, January is the cheapest month in which you can book a flight from Seattle to Helsinki (average of C$ 759). Flying from Seattle to Helsinki in June is currently the most expensive (average of C$ 1,655). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

How much does it cost to fly round-trip from Seattle to Helsinki?

Airfare is below average for this route at the moment.

Seattle to Helsinki flights typically cost between C$ 1,235 and C$ 1,611 in April.
The cheapest round-trip price found within the last 5 days was C$ 950 on Scandinavian Airlines (28 Apr-18 May).

Related info for your journey

  • How popular is this Seattle to Helsinki flight route?

    The Seattle/Tacoma Intl to Helsinki-Vantaa flight path was viewed by 4 users in the past month. Keep an eye out for changes in search interest prior to high and low season.

  • How long is the flight from Seattle to Helsinki?

    Scandinavian Airlines, Icelandair, and Turkish Airlines can get you from Seattle to Helsinki in just under 12h 25m. Your travel time can differ by up to 24h 40m. Airlines will cover a distance of 7667 km. When browsing for deals, the options you’ll see will be for both direct flights and flights with stops.

  • What are the most reliable airlines from Seattle to Helsinki?

    Looking for the most reliable airlines to get you to your destination on time? Our data shows these are most likely to get you from Seattle to Helsinki on time: American Airlines (8%), Alaska Airlines (8%), Finnair (8%).

  • Can I find deals for flights from Seattle to Helsinki that include hotel bookings?

    Yes. In addition to deals on Seattle to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Seattle to Helsinki?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Seattle to Helsinki.

  • Can I find deals for business class flights from Seattle to Helsinki?

    Yes. Cheapflights offers flight deals from Seattle to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Seattle to Helsinki?

    Currently, January is the cheapest month in which you can book a flight from Seattle to Helsinki (average of C$ 759). Flying from Seattle to Helsinki in June is currently the most expensive (average of C$ 1,655). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

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