HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helsinki

$356+ Cheap flights from Reagan-National (DCA) to Helsinki (HEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/15. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HEL
Feb 14 — Feb 211
Sat 2/14
Sat 2/21
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Reagan-National to Helsinki with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheap flight deals from Reagan-National to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Reagan-National (DCA) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated January 15, 2026.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$432
(British Airways)

One-way from

$356
(American Airlines)

Popular in

December

Cheapest in

February

Average price

$533
Provider with most accurate pricing for Washington, D.C. Reagan-National-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Reagan-National-Helsinki-Vantaa flights.
Search Deals
From Washington, D.C. Reagan-National to Helsinki-Vantaa
Search Deals
One-way flight from Washington, D.C. Reagan-National to Helsinki-Vantaa
Search Deals
High demand for flights, 1% potential price rise
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in January 2026
Search Deals

Find flight deals from Reagan-National to Helsinki

Cheapest flights from Reagan-National to Helsinki
Explore the most affordable flight options available from Reagan-National to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on January 15, 2026.

This British Airways deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:46 pm
DCA
-
HEL
2 stops20h 14m
British Airways
Thu 4/304:25 pm
HEL
-
DCA
1 stop23h 39m
British Airways
Deal found 1/12$432
This Finnair deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/115:00 am
DCA
-
HEL
1 stop23h 10m
Multiple Airlines
Wed 2/185:00 pm
HEL
-
DCA
1 stop24h 00m
Multiple Airlines
Deal found 1/13$434
This American Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/118:20 am
DCA
-
HEL
1 stop19h 50m
American Airlines
Wed 2/1812:30 pm
HEL
-
DCA
2 stops17h 21m
American Airlines
Deal found 1/13$438
This American Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/183:52 pm
DCA
-
HEL
2 stops15h 03m
American Airlines
Wed 2/2512:30 pm
HEL
-
DCA
2 stops17h 21m
American Airlines
Deal found 1/13$439
This British Airways deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:46 pm
DCA
-
HEL
2 stops20h 14m
British Airways
Mon 5/47:30 pm
HEL
-
DCA
2 stops28h 00m
British Airways
Deal found 1/12$451
This Delta deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:00 am
DCA
-
HEL
2 stops18h 55m
Delta
Tue 5/56:10 am
HEL
-
DCA
2 stops17h 50m
Delta
Deal found 1/12$461
This American Airlines deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/1811:36 am
DCA
-
HEL
1 stop16h 09m
Multiple Airlines
Tue 2/247:40 am
HEL
-
DCA
2 stops15h 45m
Multiple Airlines
Deal found 1/13$465
This Finnair deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/11:46 pm
DCA
-
HEL
1 stop17h 29m
Multiple Airlines
Wed 4/86:50 am
HEL
-
DCA
2 stops22h 27m
Multiple Airlines
Deal found 1/14$466
This oojo deal was found by Cheapflights users on 1/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/57:59 pm
DCA
-
HEL
2 stops18h 01m
British Airways
Sun 10/184:25 pm
HEL
-
DCA
1 stop14h 10m
British Airways
Deal found 1/15$471
This Delta deal was found by Cheapflights users on 1/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1911:00 am
DCA
-
HEL
2 stops16h 35m
Delta
Tue 5/56:10 am
HEL
-
DCA
2 stops17h 50m
Delta
Deal found 1/12$473
This Air Canada deal was found by Cheapflights users on 1/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/44:15 pm
DCA
-
HEL
2 stops19h 35m
Air Canada
Wed 3/186:55 am
HEL
-
DCA
2 stops33h 26m
Air Canada
Deal found 1/14$482
This Delta deal was found by Cheapflights users on 1/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/112:30 pm
DCA
-
HEL
2 stops18h 55m
Delta
Wed 2/186:30 am
HEL
-
DCA
2 stops22h 38m
Delta
Deal found 1/13$483

Cheapflights Fare Finder

 
Customize your flight search to find flights from Reagan-National to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated January 15, 2026.
Use the filters below to find and compare flights from Washington, D.C. Reagan-National Airport to Helsinki that are best for you.

Fly from

Reagan-National

Fly to

Helsinki

Route

Depart

Return

Price

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 4/20

5:41 pm-9:00 pm

2 stops20h 19m

Helsinki-Vantaa

Thu 4/30

4:25 pm-11:59 pm

1 stop14h 34m

$432

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 3/4

10:05 am-11:10 am

1 stop18h 05m

Helsinki-Vantaa

Tue 3/17

12:30 pm-11:00 pm

1 stop16h 30m

$434

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/18

1:28 pm-1:55 pm

1 stop17h 27m

Helsinki-Vantaa

Wed 2/25

5:00 pm-10:00 am

1 stop24h 00m

$434

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/11

5:00 am-11:10 am

1 stop23h 10m

Helsinki-Vantaa

Wed 2/18

5:00 pm-10:00 am

1 stop24h 00m

$434

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 4/20

5:41 pm-9:00 pm

2 stops20h 19m

Helsinki-Vantaa

Mon 5/4

7:30 pm-4:30 pm

2 stops28h 00m

$451

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 4/20

5:41 pm-9:00 pm

2 stops20h 19m

Helsinki-Vantaa

Wed 5/6

2:05 pm-11:54 pm

2 stops16h 49m

$451

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 4/20

11:00 am-12:55 pm

2 stops18h 55m

Helsinki-Vantaa

Thu 4/30

6:10 am-10:43 pm

2 stops23h 33m

$461

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 4/21

11:00 am-12:55 pm

2 stops18h 55m

Helsinki-Vantaa

Tue 5/5

6:10 am-5:00 pm

2 stops17h 50m

$461

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 3/31

11:00 am-12:55 pm

2 stops18h 55m

Helsinki-Vantaa

Tue 4/7

6:10 am-5:00 pm

2 stops17h 50m

$461

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 4/1

1:46 pm-2:15 pm

1 stop17h 29m

Helsinki-Vantaa

Wed 4/8

6:50 am-10:17 pm

2 stops22h 27m

$466

Flights are sorted by cheapest round-trip flights first.

Deals found on 1/14

Showing 1-10 of 22 results
1
2
3

Compare providers for flights from Reagan-National to Helsinki

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Reagan-National to Helsinki in January.
ProviderPrice AccuracyTrust Score*
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 starsTrust Score*3 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Helsinki flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Reagan-National Airport-Helsinki flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Washington, D.C. Reagan-National Airport-Helsinki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Reagan-National Airport-Helsinki flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Washington, D.C. Reagan-National Airport-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Reagan-National to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Reagan-National with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Related info for your journey

Find useful and relevant information for your journey from Reagan-National to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly into for flights to Helsinki from Washington, D.C. Reagan-National?

    For a flight from Washington, D.C. Reagan-National to Helsinki, you will be flying into Helsinki-Vantaa. Helsinki-Vantaa (HEL) is just 10.6 mi from the center of the city. Helsinki-Vantaa is the only Helsinki airport and it handles 0 inbound flights from Washington, D.C. Reagan-National per day. 0 airlines have flights to Helsinki-Vantaa from Washington, D.C. Reagan-National on a regular basis.

  • How long is the flight from Washington, D.C. Reagan-National Airport to Helsinki?

    For as low as $432, British Airways can have you in Helsinki from Washington, D.C. Reagan-National Airport in 20h 19m. There are 4302 mi between Washington, D.C. Reagan-National Airport and Helsinki.

  • Can I find deals for flights from Reagan-National to Helsinki that include hotel bookings?

    Yes. In addition to deals on Reagan-National to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Reagan-National to Helsinki?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Reagan-National to Helsinki.

  • Can I find deals for business class flights from Reagan-National to Helsinki?

    Yes. Cheapflights offers flight deals from Reagan-National to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.