An Alaska Airlines plane taking off with a snow-capped mountain in the background.

CA $905 Cheap Flights from Helsinki (HEL) to Seattle (SEA)

View CA $905 flight on Mon, Oct 26, 2026Opens in a new window

Popular airlines from Helsinki-Vantaa Airport (HEL) to Seattle-Tacoma International Airport (SEA)

  • Be in the know

    Get alerts if flight prices drop or rise*

  • Book smarter

    Save up to 30% on select hotels after you book a flight*

  • Earn twice

    Earn your airline miles on top of our rewards
    Sign in

Cheap flights from Helsinki (HEL) to Seattle (SEA)

Prices were available within the past 7 days and start at CA $905 for one-way flights and for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Frequently asked questions

How much does a flight from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) cost?
You can find one-way and return flights from HEL to SEA with Expedia. Flight prices vary based on the month and day of the week you want to travel, as well as the airline and how far in advance you book your ticket. Filter your search on Expedia by "Price (lowest to highest)" to see our cheapest fares first, and use the Price Tracking tool to receive alerts when HEL to SEA ticket fares go up or down.
What is the cheapest month to fly from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The cheapest months to fly from HEL to SEA are typically during off-peak season when demand is low. Traveling in off-peak or shoulder months is usually a good way to secure cheap tickets, just remember to avoid flying during holidays if you are able to. Use the calendar view in your search to see which months have low fares on this route.
Which airlines fly direct from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Only one airline offers direct flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Finnair operates 7 direct flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) every week.
What is the cheapest airline that flies from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Air France is one of the cheapest airlines offering connecting return flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.), with tickets starting from around CA$2045 for flights that can be booked for departure within the next year. These prices are per adult for economy/coach class. Use Expedia's search tool to compare the prices and schedules of airlines that fly this route to find the best option for your plans and budget.
How do I find cheap flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
To find a cheap flight from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.), be flexible with your dates. Traveling outside of peak vacation months and booking a mid-week flight can help you save. Early morning and late night flights are often more affordable, too. Expedia allows you to compare flight times, airlines and routes all in one place to find low fares. You can also set up Price Tracking and receive alerts when fares go up or down.
What is the best airline to fly with from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best airline to fly with from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will differ from traveler to traveler. If you like to fly early, Finnair offers early morning flights. If price is the most important factor, Finnair typically offers the lowest fares. Finnair offers the most daily flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.), which is great if flexibility is what you value most. The best carrier for this journey could also be the one you have a loyalty membership with, as flying with that airline or another airline within the same alliance could help you collect points or enjoy lounge access.
What is the best time to fly from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The best time to fly is usually mid-week (Tuesday or Wednesday) and during early morning hours as flights tend to be cheaper, less crowded, and generally more on-time. Avoid major holidays and peak vacation seasons for smoother travel. Combining off-peak days and hours often gives the best combination of cost, comfort, and convenience.
How many flights per day from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
There are approximately 41 connecting flights per day from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.). Some common connection points include Frankfurt Intl. (FRA), Schiphol (AMS), and Heathrow (LHR).
What is the earliest flight from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The earliest flight from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically departs around 12:20 AM local time. This service is seasonal, active only in October. You'll find this early flight offered by airlines such as Finnair, Air Baltic, and Air France. An early departure like this can be great for maximizing your time in Seattle. To compare early flights on Expedia, select the "Early Morning" and "Morning" filters in your search.
What day of the week has the most flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
You'll typically find the most flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) on a Friday, with around 42 flights available. This gives you a good selection of options for your travel plans. Major airlines on this route include Finnair, Lufthansa, and KLM. Flight schedules are fairly consistent throughout the week, so you'll have plenty of options no matter when you choose to fly.
What are the most popular departure times for flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
The most popular departure times for flights from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) are in the morning, from 6am to 9am. Many major carriers, including Lufthansa, Finnair and KLM, offer flights during this window. Many travellers prefer these times as they allow for an early start to their journey, often leading to an afternoon arrival at their destination.
How long does it take to fly from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
A direct flight from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) typically takes around 9 hours 45 minutes, covering a distance of approximately 7,673 kilometres. If you're looking at flights with one stop, the travel time usually increases to about 19 hours 30 minutes. For flights with two or more stops, you can expect the journey to be around 23 hours. Keep in mind that these are average times, and your actual flight duration can vary due to factors like layover length, specific routing, and even wind patterns.
Can you fly business or first class from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
Yes, you can fly business class between HEL and SEA. Airlines that offer business class service on this route include:
  • Lufthansa
  • Air France
  • Air Baltic
  • KLM
  • SAS
  • Turkish Airlines
  • Icelandair
  • Finnair
  • Cityjet
How do I earn miles on a Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight with Expedia?
It's easy to earn miles on a Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight when you book with Expedia. Before you confirm your booking, simply select your frequent flyer program and enter your program number. As a member of One Key™, you can also earn OneKeyCash™* on top of your airline miles when you book with Expedia.*Excludes taxes and fees. OneKeyCash is not redeemable for cash and can only be used on Expedia and other participating brands.
What airports do you fly into for Seattle, WA (SEA) from Helsinki (HEL)?
If you're planning to travel to Seattle from Vantaa (HEL), you can fly directly into Seattle - Tacoma Intl. (SEA). Some flights may connect through major hubs like Frankfurt Intl. (FRA), Heathrow (LHR), or Franz Josef Strauss Intl. (MUC) before reaching Seattle. Compare routes and airports on Expedia to find the best flight options for your travel plans.
Is it cheaper to buy a plane ticket from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) at the last minute?
Typically, booking a last minute flight from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) will be more expensive than booking in advance. As the departure date approaches, there are usually fewer seats available which can drive up the cost. However, if there's some wiggle room with your travel dates and times, you could bag a cheap last-minute fare.
Is it cheaper to book a Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package?
Securing a Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight and hotel package is usually cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Select from our extensive range of stays and then add flights, activities and car rentals to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.)?
If you booked your Helsinki (HEL-Vantaa) to Seattle, WA (SEA-Seattle - Tacoma Intl.) flight within the last 24 hours, you may be able to modify or cancel it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond this timeframe. Airline policies and contact information can be found in your itinerary or confirmation email. Or, head to our Customer Service portal if you'd like more information.

Travel information

Origin airport
Vantaa
Destination airport
Seattle - Tacoma Intl.
Distance
7628 km
Average flight time
9 hours 40 mins

Book with confidence

Helsinki to Seattle Flights

The easy way to book your flights from Helsinki to Seattle 

With Expedia, it’s simple to find and book flights to Seattle from Helsinki whether you’re traveling for business or pleasure. Enter your travel dates, hit search, and choose your flight from 20 airlines that cover this route. There are nonstop flights to Seattle - Tacoma Intl., too.  

Choose your preferred carrier and cabin class with the advanced search tool and select your ideal departure time. Then, if you want, you can see just nonstop or refundable flights. And if you’re traveling last minute, just enter the date to check out flights from Helsinki to Seattle today, tomorrow, or this week.  

 

Save dollars with cheap flights from Vantaa, HEL to Seattle - Tacoma Intl., SEA 

Sort your search results by price to find great deals on your flight from Helsinki to Seattle—you get all your cheapest options first. Grab yourself a bargain now—the lowest price on flights to Seattle from Helsinki currently is just rising to .  

Here are more money-saving tips: 

  • Fly in when flight prices are normally at their lowest 
  • Book about a month to 6 weeks before you travel for the best prices to Seattle  
  • Avoid peak season and weekends when flights can cost more
  • Early morning and late-night flights are sometimes cheaper, so try varying your travel times 
  • One surefire way to save money on your flight is to book your flight and hotel together with Expedia. Sometimes, the savings are so large that the flight is basically free! 

 

Reasons to choose Expedia for your flight to Seattle from Helsinki 

Whatever your destination, budget, or reason to travel, in just one quick search, you can choose from loads of flights, airlines, and cabin classes. The filters make it quick and easy to find your ideal flights, and if you choose one of the flexible options, you won’t be charged to change your flight. So book your flight to Seattle with Expedia today.

Helsinki to Seattle Flights

Explore a world of travel with Expedia

*Available to Expedia members.