$391 Cheap Flights from Washington (DCA) to Helsinki (HEL)

View $391 flight on Mon, Nov 17, 2025Opens in a new window

Popular airlines from Ronald Reagan Washington National Airport (DCA) to Helsinki-Vantaa Airport (HEL)

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Cheap Flights from Washington to Helsinki (DCA-HEL)

Prices were available within the past 7 days and start at $391 for one-way flights and $479 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Air Canada
Wed, Nov 12 - Wed, Nov 19
DCA
Washington
HEL
Helsinki
$479 Roundtrip, found 1 day ago
$479
Roundtrip
found 1 day ago
Select Air Canada flight, departing Wed, Nov 12 from Washington to Helsinki, returning Wed, Nov 19, priced at $479 found 1 day ago
Air Canada
Wed, Jan 14 - Thu, Jan 22
DCA
Washington
HEL
Helsinki
$480 Roundtrip, found 13 hours ago
$480
Roundtrip
found 13 hours ago
Select Air Canada flight, departing Wed, Jan 14 from Washington to Helsinki, returning Thu, Jan 22, priced at $480 found 13 hours ago
British Airways
Wed, Apr 8 - Sun, Apr 19
DCA
Washington
HEL
Helsinki
$482 Roundtrip, found 7 hours ago
$482
Roundtrip
found 7 hours ago
Select British Airways flight, departing Wed, Apr 8 from Washington to Helsinki, returning Sun, Apr 19, priced at $482 found 7 hours ago
American Airlines
Tue, Dec 30 - Mon, Jan 12
DCA
Washington
HEL
Helsinki
$482 Roundtrip, found 10 hours ago
$482
Roundtrip
found 10 hours ago
Select American Airlines flight, departing Tue, Dec 30 from Washington to Helsinki, returning Mon, Jan 12, priced at $482 found 10 hours ago
Air Canada
Mon, Nov 10 - Wed, Jan 14
DCA
Washington
HEL
Helsinki
$482 Roundtrip, found 4 days ago
$482
Roundtrip
found 4 days ago
Select Air Canada flight, departing Mon, Nov 10 from Washington to Helsinki, returning Wed, Jan 14, priced at $482 found 4 days ago
Scandinavian Airlines
Wed, Jan 14 - Thu, Jan 22
DCA
Washington
HEL
Helsinki
$483 Roundtrip, found 13 hours ago
$483
Roundtrip
found 13 hours ago
Select Scandinavian Airlines flight, departing Wed, Jan 14 from Washington to Helsinki, returning Thu, Jan 22, priced at $483 found 13 hours ago
United
Wed, Jan 14 - Thu, Jan 22
DCA
Washington
HEL
Helsinki
$485 Roundtrip, found 13 hours ago
$485
Roundtrip
found 13 hours ago
Select United flight, departing Wed, Jan 14 from Washington to Helsinki, returning Thu, Jan 22, priced at $485 found 13 hours ago
United
Fri, Nov 7 - Wed, Nov 12
DCA
Washington
HEL
Helsinki
$485 Roundtrip, found 1 day ago
$485
Roundtrip
found 1 day ago
Select United flight, departing Fri, Nov 7 from Washington to Helsinki, returning Wed, Nov 12, priced at $485 found 1 day ago
Air Canada
Mon, Nov 10 - Tue, Jan 13
DCA
Washington
HEL
Helsinki
$486 Roundtrip, found 4 days ago
$486
Roundtrip
found 4 days ago
Select Air Canada flight, departing Mon, Nov 10 from Washington to Helsinki, returning Tue, Jan 13, priced at $486 found 4 days ago
United
Tue, Jan 13 - Sun, Jan 18
DCA
Washington
HEL
Helsinki
$488 Roundtrip, found 1 day ago
$488
Roundtrip
found 1 day ago
Select United flight, departing Tue, Jan 13 from Washington to Helsinki, returning Sun, Jan 18, priced at $488 found 1 day ago

Alternative airports near Helsinki

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

Select flight to Vantaa HEL. Cheapest option available. Average driving time to city center is 22 minutes. Flights from $877
HEL
Vantaa
Cheapest
Average driving time to city center22 min
Flights from $877

Frequently asked questions

How much does a flight from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL) cost?
Secure a cheap one-way flight from $391 or cheap return flight from $479 from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL) with Expedia. Enter your travel dates and sort by "Price (lowest to highest)" to find our cheapest flight offers on this route.
What is the cheapest month to fly from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL)?
Traveling in November can help you save, as it's the cheapest month for flights between DCA and HEL. You'll typically find the lowest prices during the off-season.
What is the cheapest airline that flies from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL)?
To find the cheapest airline that'll fly you from DCA to HEL, use Expedia's filter tool. Customize your search based on what matters most to you, such as preferred carriers and flight duration. You can then sort your results by "Price (lowest to highest)" to discover the cheapest flight right away.
How many flights per day from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL)?
Direct flights from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL) aren't available daily, so you'll need to take a flight with a layover. Explore your options with Expedia's filter tool. Enter your travel details and choose either "1 Stop" or "2+ Stops."
What day of the week has the most flights from DCA to HEL?
Friday is usually the busiest day for flights, while Tuesday tends to be the quietest.* Remember that flight schedules can change depending on various factors, such as the carrier and season.*Busiest/quietest day to travel is based on Expedia flight demand through January to December 2024.
What is the best time to fly from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL)?
Select a flight from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL) that takes off before 3 PM to reduce the risk of delays and cancellations. Departures after this hour are on average 22% more likely to be 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 Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL) last-minute?
Booking your plane ticket from DCA to HEL shortly before your journey is usually more expensive. But if there's some wiggle room with your schedule, you could bag a cheap last-minute fare.
Is it cheaper to book a DCA to HEL flight and hotel package?
You'll generally save money by securing a DCA to HEL flight and hotel package compared to booking separately. In fact, travelers could save hundreds of dollars by bundling with Expedia. And it's simple to manage everything in one convenient place. After choosing your preferred accommodations and flights, you can add extras like tours, activities and car rentals.
Can I cancel or change the date of my flight from Ronald Reagan Washington National Airport (DCA) to Vantaa Airport (HEL)?
If you booked your DCA to HEL flight within the last 24 hours, you may be able to cancel or modify it without any fees. Depending on the airline and the type of ticket you have, additional charges may apply for changes beyond that time. 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
Ronald Reagan Washington National
Destination airport
Vantaa
Airlines serving
Air Canada, Air France, American Airlines, British Airways, Delta, Finnair, Iberia, Icelandair, KLM, Scandinavian Airlines, United
Roundtrip price
$478
Distance
4304 mi

Book with confidence

Washington to Helsinki Flights

The cheapest times to fly from Washington to Helsinki

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 Washington to Helsinki are during the month of November. You can find some of the cheapest flights from Washington to Helsinki with Expedia's search tool and vast selection of airlines.

 

The best time to book a flight from Washington to Helsinki

Sunday is one of the best days to book for cheap flights from Washington to Helsinki: 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 Washington to Helsinki

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 Washington to Helsinki in 2025. You can also book with separate airlines for your outbound and return journeys, from $391 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 Washington to Helsinki 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 Washington to Helsinki 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.

 

Washington to Helsinki Flights

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*Available to One Key members.