$675 Cheap Flights from Helsinki (HEL) to Washington (IAD)

View $675 flight on Wed, Nov 26, 2025Opens in a new window

Popular airlines from Helsinki-Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD)

Cheap Flights from Helsinki to Washington (HEL-IAD)

Prices were available within the past 7 days and start at $675 for one-way flights and $499 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Icelandair
Fri, Mar 13 - Thu, Apr 2
HEL
Helsinki
IAD
Washington
$499 Roundtrip, found 14 hours ago
$499
Roundtrip
found 14 hours ago
Select Icelandair flight, departing Fri, Mar 13 from Helsinki to Washington, returning Thu, Apr 2, priced at $499 found 14 hours ago
Icelandair
Fri, Feb 20 - Wed, Feb 25
HEL
Helsinki
IAD
Washington
$499 Roundtrip, found 6 days ago
$499
Roundtrip
found 6 days ago
Select Icelandair flight, departing Fri, Feb 20 from Helsinki to Washington, returning Wed, Feb 25, priced at $499 found 6 days ago
Scandinavian Airlines
Thu, Feb 26 - Sat, Mar 7
HEL
Helsinki
IAD
Washington
$500 Roundtrip, found 2 days ago
$500
Roundtrip
found 2 days ago
Select Scandinavian Airlines flight, departing Thu, Feb 26 from Helsinki to Washington, returning Sat, Mar 7, priced at $500 found 2 days ago
Icelandair
Thu, Feb 26 - Mon, Mar 2
HEL
Helsinki
IAD
Washington
$501 Roundtrip, found 4 days ago
$501
Roundtrip
found 4 days ago
Select Icelandair flight, departing Thu, Feb 26 from Helsinki to Washington, returning Mon, Mar 2, priced at $501 found 4 days ago
Scandinavian Airlines
Mon, Jan 26 - Mon, Feb 2
HEL
Helsinki
IAD
Washington
$507 Roundtrip, found 5 days ago
$507
Roundtrip
found 5 days ago
Select Scandinavian Airlines flight, departing Mon, Jan 26 from Helsinki to Washington, returning Mon, Feb 2, priced at $507 found 5 days ago
Scandinavian Airlines
Sat, Apr 11 - Wed, Apr 15
HEL
Helsinki
IAD
Washington
$517 Roundtrip, found 7 hours ago
$517
Roundtrip
found 7 hours ago
Select Scandinavian Airlines flight, departing Sat, Apr 11 from Helsinki to Washington, returning Wed, Apr 15, priced at $517 found 7 hours ago
Delta
Mon, Dec 15 - Tue, Jan 20
HEL
Helsinki
IAD
Washington
$593 Roundtrip, found 1 day ago
$593
Roundtrip
found 1 day ago
Select Delta flight, departing Mon, Dec 15 from Helsinki to Washington, returning Tue, Jan 20, priced at $593 found 1 day ago
American Airlines
Sun, Feb 15 - Thu, Feb 26
HEL
Helsinki
IAD
Washington
$597 Roundtrip, found 4 days ago
$597
Roundtrip
found 4 days ago
Select American Airlines flight, departing Sun, Feb 15 from Helsinki to Washington, returning Thu, Feb 26, priced at $597 found 4 days ago
British Airways
Thu, Mar 5 - Mon, Mar 9
HEL
Helsinki
IAD
Washington
$607 Roundtrip, found 4 days ago
$607
Roundtrip
found 4 days ago
Select British Airways flight, departing Thu, Mar 5 from Helsinki to Washington, returning Mon, Mar 9, priced at $607 found 4 days ago
Air France
Thu, Feb 19 - Tue, Feb 24
HEL
Helsinki
IAD
Washington
$651 Roundtrip, found 6 days ago
$651
Roundtrip
found 6 days ago
Select Air France flight, departing Thu, Feb 19 from Helsinki to Washington, returning Tue, Feb 24, priced at $651 found 6 days ago

Alternative airports near Washington

Prices were available within the past 7 days. Prices and availability are subject to change.

Select flight to Ronald Reagan Washington National DCA. Cheapest and Closest option available. Average driving time to city center is 8 minutes. Flights from $610
DCA
Ronald Reagan Washington National
CheapestClosest
Average driving time to city center8 min
Flights from $610
Flights from Helsinki (HEL) to Washington (IAD)
Origin airport
Vantaa
Destination airport
Washington Dulles Intl.
Airlines serving
Air Canada, Air France, American Airlines, Austrian Airlines, British Airways, Brussels Airlines, Delta, Finnair, Iberia, Icelandair, KLM, Lufthansa, Scandinavian Airlines, TAP Portugal, Turkish Airlines, United
Roundtrip price
$498
Distance
4310 mi

Helsinki to Washington Flights

The cheapest times to fly from Helsinki to Washington

On average, Thursday can be the cheapest time to fly, according to data from the Airlines Reporting Corporation (ARC), one of the world's biggest databases for global airline sales. The data reveals that you could save up to 16% by flying on a Thursday—the cheapest day to travel on average—instead of a Sunday—the most expensive. Some of the most affordable flights from Helsinki to Washington are during the month of March. You can find some of the cheapest flights from Helsinki to Washington with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Helsinki to Washington

Sunday is one of the best days to book for cheap flights from Helsinki to Washington: Tickets reserved on a Sunday cost between 6% and 13% less than those reserved on a Friday, according to ARC data. The data also suggests booking early can also lead to cheaper airfares. You could save 24% by buying your tickets for domestic flights at least a month in advance and 10% by booking international flights 2 months in advance.

 

How to find cheap round-trip tickets from Helsinki to Washington

Being flexible with your dates and using Expedia's Price Drop Protection and Price Tracking features are some of the best ways of finding a cheap ticket from Helsinki to Washington in 2025. You can also book with separate airlines for your outbound and return journeys, from $675 one-way. Expedia also offers Price Drop Protection, so if the cost of your airfare goes down after booking, you'll receive a credit for the difference*. This is available for a small fee, and is free to One Key Gold and Platinum tier members.

 

Expedia's Price Tracking feature means you can stay on top of airfares without manually checking every day. It sends you automated price alerts for cheap Helsinki to Washington flights and uses historical data to indicate when the best time to book is. Download Expedia's free app to activate this handy tool in a few easy taps.

 

You could also save big by booking one of Expedia's vacation packages. Bundling together your Helsinki to Washington airfare with your accommodations and car rental is often cheaper than booking everything separately. There’s also One Key, Expedia's generous rewards program. Join for free and you could earn One Key cash on most bookings to save on future adventures.

 

*Terms apply.

 

Disclaimer: ARC The statistics are based on average round-trip ticket prices between January and August 2023. The percentages you see are averages.

 

Frequently asked questions

How much does a flight from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD) cost?
Lock in a cheap one-way flight from $675 or cheap return flight from $499 from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to see our cheapest flight offers on this route.
What is the cheapest month to fly from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD)?
The cheapest month to fly from HEL to IAD is March, when demand is low. Off-peak months are usually when you'll find cheap fares for travel between these airports.
What is the cheapest airline that flies from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD)?
To find the cheapest airline flying from HEL to IAD, use Expedia's filter tool. Tailor your search based on your travel style, such as preferred carriers and cabin class. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD)?
Nonstop flights from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD) aren't available daily, so you'll need to take a flight with a layover. Explore your options with our filter tool. Enter your dates and click on either "1 Stop" or "2+ Stops."
What day of the week has the most flights from HEL to IAD?
Generally you'll have the most choice when it comes to flights on a Friday. Tuesdays are often the quietest.* But this can change depending on the airline, time of year and other factors.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD)?
To avoid potential delays on the Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD) route, aim to fly before 3 PM. Later flights have a 22% higher chance of being canceled.**Most reliable time of the day and month to travel recommendation is based on January through August 2024 flight status data sourced from OAG's global flight data platform.
Is it cheaper to buy a plane ticket from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD) last-minute?
Booking your flight from HEL to IAD right before your journey is usually more expensive. But if there's some wiggle room with your schedule, you could land a cheap last-minute fare.
Is it cheaper to book a HEL to IAD flight and hotel package?
Opting for a HEL to IAD flight and hotel package is generally cheaper than booking separately. With Expedia, you can enjoy the ease of organizing your travels all in one place. Choose from our extensive range of hotels and then add flights, car rentals and activities to your booking. Bundle everything together, and you could save hundreds of dollars.
Can I cancel or change the date of my flight from Vantaa Airport (HEL) to Washington Dulles Intl. Airport (IAD)?
Typically, you can modify or cancel your HEL to IAD flight. However, there may be additional charges, especially if your booking was made more than 24 hours ago. Check your itinerary for the airline's rules and fees on flight changes, or if you need further information, visit our Customer Service portal.

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*Available to One Key members.