Cheap flights from Seattle to Helsinki from $313
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 Helsinki departing on 9/1. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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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 cheapest month to fly to Helsinki?
The month of January is, on average, the cheapest month to fly to Helsinki from Seattle, with most prices found around $539. If you aren’t able to travel during the month of January, then book flights to Helsinki from Seattle during November instead. Flights to Helsinki in November, while not as cheap as those in January, still average around $605.
What is the cheapest day to depart on your flight to Helsinki?
The cheapest day to depart on your flight to Helsinki is on a Sunday when prices can be found for as low as $910. This is often the case because there is less demand to fly during this day of the week. Flights from Seattle to Helsinki on a Tuesday will generally be more expensive and average around $1,381. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.
What is the cheapest time of day to depart on your flight to Helsinki?
According to our data, the cheapest time of day to fly to Helsinki is in the morning. momondo users have found flights departing from Seattle to Helsinki in the morning for as low as $788. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $1,019 per ticket.
What is the cheapest Seattle/Tacoma Intl to Helsinki-Vantaa flight route?
Fly from Seattle/Tacoma Intl to Helsinki-Vantaa for the best Seattle/Tacoma Intl - Helsinki-Vantaa flight prices
How far in advance should I book a flight to Helsinki?
You are more likely to see cheaper flights to Helsinki from Seattle when booking 13 weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $861 when searching 13 weeks out.However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Seattle for as low as $598 on momondo.
What cabin class options are available on Seattle/Tacoma Intl to Helsinki-Vantaa flights?
There are 3 cabin classes available to choose from on Seattle/Tacoma Intl to Helsinki-Vantaa 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 Helsinki flights?
You could potentially save up to 43% on your flight if you consider stops on a Seattle to Helsinki flight.
How have Seattle to Helsinki flight prices changed over time?
As of June 2025, prices for Seattle to Helsinki flights are approximately 6% cheaper when compared to flights at the same time last year.
What is the cheapest airline that flies from Seattle/Tacoma Intl to Helsinki-Vantaa?
Icelandair, Air France, and Delta are the most popular carriers operating from Seattle/Tacoma Intl to Helsinki-Vantaa
What airlines fly to Helsinki?
Icelandair, Finnair and American Airlines are the top three most popular airlines that fly to Helsinki from Seattle according to our data. Icelandair is the first choice among our users, with 43% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 7 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.
How many flights depart from Seattle to Helsinki on average per day?
The number of flights available between Seattle and Helsinki is 2 per day as of June 2025. The most frequent departure time is 5:00PM, with 100% of daily flights leaving in the afternoon.
How many flights depart from Seattle to Helsinki on average per week?
The number of flights available between Seattle and Helsinki is 20 per week as of June 2025. The most frequent departure day is Mon, with 25% of weekly flights leaving on this day.
When to book flights from Seattle to Helsinki
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 | $313 |
|---|---|
Fastest flight time | 9h 30m |
Direct flights | Mon, Tue, Thu, Fri and Sun |
Airports in Helsinki | 1 airport |
How far is Seattle/Tacoma Intl to Helsinki-Vantaa by plane?
The distance between Seattle/Tacoma Intl and Helsinki-Vantaa is about 4763.3 mi. Flights usually cover this in 9h 30m, depending on flying conditions and air traffic around both airports.
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 are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport?
As of June 2025, there are 7 operators available to choose from for flights from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Helsinki-Vantaa Airport?
The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check 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 necessary travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your travel plans and individual circumstances. Generally, you should have various documents, such as a national ID card or driver's license and a passport that is valid for six months beyond your scheduled arrival date. We recommend seeking advice from your airline or a trusted third party, such as IATA.
What is the most popular plane model from Seattle to Helsinki?
momondo data reveals that the most frequently booked plane model on the route from Seattle to Helsinki is Airbus A330-300, representing 50.35% of all bookings. The subsequent popular models are Airbus A330 at 12.06%, Airbus A330-900neo at 9.27%, and Airbus A350-900 at 7.87%.
What is the most popular airline from Seattle to Helsinki?
Based on momondo bookings for flights between Seattle and Helsinki, the leading airline is Icelandair, making up 39% of the total bookings. Other popular airlines include Finnair with 36%, American Airlines with 10%, and Lufthansa with 5%.
Best airlines flying from Seattle to Helsinki
Compare and see reviews for airlines that fly from Seattle to Helsinki with momondo
| Airline | Rating | Free Cancellation | Price | ||
|---|---|---|---|---|---|
| PriceFrom $415 | Free Cancellation | Rating 7.3 1,387 reviews | |||
| PriceFrom $431 | Free Cancellation | Rating 7.0 499 reviews | |||
| PriceFrom $549 | Free Cancellation | Rating 6.7 7,136 reviews | |||
| PriceFrom $559 | Free Cancellation | Rating 7.6 1,290 reviews | |||
| PriceFrom $569 | Free Cancellation | Rating 6.6 7,008 reviews | |||
| PriceFrom $583 | Free Cancellation | Rating 7.4 8,790 reviews | |||
| PriceFrom $601 | Free Cancellation | Rating 7.2 10,000 reviews |
Finnair Flights From Seattle to Helsinki
Across 3 Finnair flights from Seattle to Helsinki this week, the average price was $998, with the best Finnair deals starting from $559 round-trip. 1,290 users have rated Finnair on momondo, with an average score of 7.6/10.
American Airlines Flights From Seattle to Helsinki
$601 is the best American Airlines flight deal from Seattle to Helsinki found on momondo over the last 72 hours. The average American Airlines ticket price found was closer to $1,093, however, with flight time and availability significantly affecting the price. American Airlines (7.2/10 from 10,000 user reviews) flies into Helsinki from Seattle 3 times in an average week so prices can vary.
Traveling to a place near Helsinki?
Book flights to Helsinki if you plan to visit one of these locationsWhy use momondo?
Why should I use momondo to find a flight deal from Seattle to Helsinki?
momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Helsinki. momondo saves you time and could save you money on your trip.
Can I find flights from Seattle to Helsinki with flexible booking policies on momondo?
Yes. All flights to Helsinki 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 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?
Yes momondo offers price alerts on flights to Helsinki from Seattle. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.