Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Helsinki to Seattle
The cheapest flights right now
Helsinki – Seattle
Outbound – Nov 19, 2026
2 stops
19h 40m ARN
KEF
Return – Dec 2, 2026
2 stops
14h 15m KEF
ARN
$784
yesterday
Helsinki – Seattle
Outbound – Nov 19, 2026
2 stops
19h 40m ARN
KEF
Return – Dec 2, 2026
2 stops
14h 15m KEF
ARN
$780
2 days ago
Helsinki – Seattle
Outbound – Nov 19, 2026
2 stops
20h 0m ARN
KEF
Return – Dec 2, 2026
2 stops
14h 15m KEF
ARN
$779
2 days ago
Helsinki – Seattle
Outbound – Nov 19, 2026
2 stops
19h 0m ARN
KEF
Return – Dec 2, 2026
2 stops
14h 15m KEF
ARN
$823
2 days ago
* Prices are in USD per passenger, including taxes, for a round trip. Prices are based on searches carried out within the last 72 hours. Please note that availability and ticket prices are subject to change and should not be considered as the final price quoted.
Cheapest flight tickets
$707
Average price of a round trip
$827
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
22h16
A flight from Helsinki to Seattle takes on average 22h16.
Best time
November
According to user searches, the ideal month to go to Seattle is November.
Tips for finding a cheap flight from Helsinki to Seattle
Check out our tips for booking your flight to Seattle (USA) from Helsinki (Finland) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is September, with an average flight ticket price of $836 (calculation over the last two years). The most touristic season corresponds to the months of September, December and August.
For the cheapest flights, it is advisable to buy your ticket at least 21 days before the departure date.
The airline offering the cheapest flight tickets is Finnair. A ticket from the airline Finnair to Seattle costs on average $792.
The airlines that offer the most flights are .
info departure city :
Helsinki, Finland
airports :
Helsinki-Vantaa Airport (HEL)
Helsinki-Malmi Airport (HEM)
local time :
Helsinki is a city in the country Finland, the time zone is [[timezone]]. In Helsinki, it is currently {fromLocalTime}, the temperature is on average 11°C, with a minimum of 10°C and a maximum of 12°C.
The city of Helsinki (HEL) has 2 airport(s): Helsinki-Vantaa and Helsinki-Malmi
destination info :
Seattle, USA
airports :
Kenmore Air Harbor Spb. (LKE)
Seattle-Tacoma International Airport (SEA)
Renton Municipal Airport (RNT)
King County International Airport (BFI)
local time :
Seattle is in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {toLocalTime}, the temperature is on average 15°C, with a minimum of 10°C and a maximum of 23°C.
The city of Seattle (SEA) has 4 airport(s): Kenmore Air Harbor Spb., Seattle-Tacoma, Renton and King County
Useful info about Seattle
What is the least touristic period to go to Seattle?
If you want to visit Seattle during the least touristic period, choose the month of November.
What is the most popular time to travel to Seattle?
In Seattle, the most popular month is September. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Helsinki to Seattle?
According to our data, it is recommended to book your flight 21 days before your departure. If you book your flight ticket 4 weeks before your departure, you may find a price below average. The cheapest day to book a flight from Helsinki to Seattle is Friday.
What are the arrival and destination airports when traveling between Helsinki and Seattle?
When you leave, you can leave from Helsinki-Vantaa, and you will arrive at Seattle-Tacoma.
How to reach Helsinki airport from the city centre?
The airport Helsinki-Vantaa is located 15 km or Helsinki-Malmi is located 13 km from the city centre. You can access it by using public transportation, taking a taxi, or renting a car.
Are there other means of transportation to go from Helsinki to Seattle?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Helsinki and Seattle?
In summer, the average temperature is 18°C in Seattle and 17°C in Helsinki. The average rainfall in summer is 38 mm in Seattle and 80 mm in Helsinki. In summer, it is warmer in Seattle and it rains less in Seattle. In winter, it is colder in Seattle and it rains more in Seattle.
