Price observed over the last 3 months for a round trip.
Compare all flight tickets and find cheap flights from Seattle to Helsinki
The cheapest flights right now
Seattle – Helsinki
Outbound – Nov 23, 2026
2 stops
14h 15m KEF
ARN
Return – Dec 8, 2026
2 stops
19h 40m ARN
KEF
$530
yesterday
Seattle – Helsinki
Outbound – Nov 23, 2026
2 stops
14h 15m KEF
ARN
Return – Dec 8, 2026
2 stops
20h 0m ARN
KEF
$547
yesterday
Seattle – Helsinki
Outbound – Nov 23, 2026
2 stops
14h 15m KEF
ARN
Return – Dec 8, 2026
2 stops
20h 0m ARN
KEF
$538
yesterday
Seattle – Helsinki
Outbound – Nov 23, 2026
2 stops
14h 15m KEF
ARN
Return – Dec 8, 2026
2 stops
19h 0m ARN
KEF
$558
yesterday
* 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
$655
Average price of a round trip
$822
Average flight ticket price recorded over the last 3 months for a round trip.
Flight duration
9h30
A flight from Seattle to Helsinki takes on average 9h30.
Best time
July
According to user searches, the ideal month to go to Helsinki is July.
Tips for finding a cheap flight from Seattle to Helsinki
Check out our tips for booking your flight to Helsinki (Finland) from Seattle (USA) at the cheapest possible price.
Usually, the cheapest month to pick up a ticket on this route is December, with an average flight ticket price of $694 (calculation over the last two years). The most touristic season corresponds to the months of October, September and December.
For the cheapest flights, it is advisable to buy your ticket at least 14 days before the departure date.
The airline offering the cheapest flight tickets is Icelandair. A ticket from the airline Icelandair to Helsinki costs on average $714.
The airlines that offer the most flights are Iberia and Iberia.
Price of flight tickets from Seattle to Helsinki
Here is some information and tips to know before booking your flight:
- Flight ticket prices range from $655 to $1111
- The average price of a flight ticket is about $822
- Prices are lowest for stays in the month of December
- The month in which booking a ticket is cheaper is: October
info departure city :
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 a city in the country USA, the time zone is [[timezone]]. In Seattle, it is currently {fromLocalTime}, 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
destination info :
Helsinki, Finland
airports :
Helsinki-Vantaa Airport (HEL)
Helsinki-Malmi Airport (HEM)
local time :
Helsinki is in the country Finland, the time zone is [[timezone]]. In Helsinki, it is currently {toLocalTime}, 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
Useful info about Helsinki
What is the least touristic period to go to Helsinki?
If you want to visit Helsinki during the least touristic period, choose the month of July.
What is the most popular time to travel to Helsinki?
In Helsinki, the most popular month is October. It is during this period that the prices offered by airlines are also the highest.
When should I book my flight from Seattle to Helsinki?
According to our data, it is recommended to book your flight 14 days before your departure. If you book your flight ticket 3 weeks before your departure, you may find a price below average. You can also choose morning flights that are 100% cheaper than afternoon and evening flights. The cheapest day to book a flight from Seattle to Helsinki is Tuesday.
What are the arrival and destination airports when traveling between Seattle and Helsinki?
When you leave, you can leave from Seattle-Tacoma, and you will arrive at Helsinki-Vantaa.
How to reach Seattle airport from the city centre?
The airport Kenmore Air Harbor Spb. is located 3 km, Seattle-Tacoma is located 16 km, Renton is located 16 km or King County is located 8 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 Seattle to Helsinki?
Airplane is the only means of transportation listed on Liligo for this journey.
Are there big differences in weather between Seattle and Helsinki?
In summer, the average temperature is 17°C in Helsinki and 18°C in Seattle. The average rainfall in summer is 80 mm in Helsinki and 38 mm in Seattle. 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.
