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$369+ 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 9/29. Fares are subject to change and may not be available on all flights or dates of travel.
DCA — HEL
Oct 15 — Oct 221
Wed 10/15
Wed 10/22
1 adult, Economy
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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 September 15, 2025.

Round-trip from

$461
(SmartFares)

One-way from

$369
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$548
From Washington, D.C. Reagan-National to Helsinki-Vantaa
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One-way flight from Washington, D.C. Reagan-National to Helsinki-Vantaa
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Highest demand for flights based on searches. 22% potential increase in price ($158 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 15, 2025.

This SmartFares deal was found by Cheapflights users on 9/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1812:15 pmDCA - HEL
2 stops15h 25mScandinavian Airlines
Mon 11/2411:20 amHEL - DCA
2 stops18h 36mScandinavian Airlines
Deal found 9/13$461
This Trip.com deal was found by Cheapflights users on 9/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/111:05 amDCA - HEL
2 stops24h 45mAir Canada
Mon 12/812:45 pmHEL - DCA
2 stops28h 41mAir Canada
Deal found 9/14$481
This Finnair deal was found by Cheapflights users on 9/12. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/35:54 pmDCA - HEL
1 stop13h 01mMultiple Airlines
Wed 12/1012:30 pmHEL - DCA
1 stop15h 30mMultiple Airlines
Deal found 9/12$482
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/307:06 pmDCA - HEL
1 stop12h 49mAmerican Airlines
Wed 11/1212:30 pmHEL - DCA
1 stop17h 30mAmerican Airlines
Deal found 9/14$483
This Scandinavian Airlines deal was found by Cheapflights users on 9/14. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1111:10 amDCA - HEL
2 stops26h 10mScandinavian Airlines
Fri 11/216:15 amHEL - DCA
2 stops23h 41mScandinavian Airlines
Deal found 9/14$484
This American Airlines deal was found by Cheapflights users on 9/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/276:01 pmDCA - HEL
2 stops13h 54mAmerican Airlines
Mon 11/1012:30 pmHEL - DCA
1 stop17h 30mAmerican Airlines
Deal found 9/14$486
This Mytrip deal was found by Cheapflights users on 9/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/299:40 amDCA - HEL
2 stops21h 30mMultiple Airlines
Wed 11/512:45 pmHEL - DCA
2 stops16h 11mMultiple Airlines
Deal found 9/14$503
This United Airlines deal was found by Cheapflights users on 9/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/303:20 pmDCA - HEL
2 stops14h 40mUnited Airlines
Thu 11/66:55 amHEL - DCA
2 stops15h 36mUnited Airlines
Deal found 9/15$507
This Delta deal was found by Cheapflights users on 9/12. 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.
Sat 10/1111:10 amDCA - HEL
2 stops16h 25mDelta
Mon 10/207:10 amHEL - DCA
2 stops17h 50mDelta
Deal found 9/12$508
This Booking.com deal was found by Cheapflights users on 9/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2711:05 amDCA - HEL
2 stops25h 45mAir Canada
Mon 11/101:55 pmHEL - DCA
2 stops26h 00mAir Canada
Deal found 9/14$509
This FlightHub deal was found by Cheapflights users on 9/13. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/174:10 pmDCA - HEL
2 stops19h 40mAir Canada
Sun 11/2312:45 pmHEL - DCA
2 stops16h 11mAir Canada
Deal found 9/13$513

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 September 15, 2025.
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

Tue 11/18

12:15 pm-10:40 am

2 stops15h 25m

Helsinki-Vantaa

Mon 11/24

11:20 am-10:56 pm

2 stops18h 36m

$461

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 12/1

11:05 am-6:50 pm

2 stops24h 45m

Helsinki-Vantaa

Mon 12/8

12:45 pm-10:26 am

2 stops28h 41m

$481

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 10/29

1:30 pm-10:45 am

1 stop15h 15m

Helsinki-Vantaa

Wed 11/5

12:30 pm-8:54 pm

1 stop15h 24m

$482

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/11

11:51 am-10:50 am

1 stop15h 59m

Helsinki-Vantaa

Wed 2/18

12:25 pm-11:23 pm

1 stop17h 58m

$482

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Fri 1/9

5:49 pm-1:55 pm

1 stop13h 06m

Helsinki-Vantaa

Sat 1/17

12:45 pm-10:00 pm

1 stop16h 15m

$482

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/11

1:50 pm-11:10 am

1 stop14h 20m

Helsinki-Vantaa

Wed 2/18

12:25 pm-11:58 pm

1 stop18h 33m

$482

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 12/3

5:54 pm-1:55 pm

1 stop13h 01m

Helsinki-Vantaa

Wed 12/10

12:30 pm-9:00 pm

1 stop15h 30m

$482

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 11/11

11:10 am-8:20 pm

2 stops26h 10m

Helsinki-Vantaa

Fri 11/21

6:15 am-10:56 pm

2 stops23h 41m

$484

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 11/11

4:59 pm-1:55 pm

2 stops13h 56m

Helsinki-Vantaa

Fri 11/21

12:30 pm-11:00 pm

1 stop17h 30m

$486

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/11

12:55 pm-3:30 pm

2 stops19h 35m

Helsinki-Vantaa

Wed 2/18

5:00 pm-10:35 pm

1 stop12h 35m

$495

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/13

Showing 1-10 of 21 results
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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.

Cheapflights Insights

Everything you need to know about your flight from Washington, D.C. Reagan-National Airport to Helsinki

What is the cheapest time of day to fly from DCA to HEL?

Find hourly flight availability from Reagan-National to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated September 15, 2025.

One of the essential ways to save on airfare from Washington, D.C. Reagan-National Airport to Helsinki is to remain as flexible as possible. Flights that are at noon tend to be the most expensive. A flight in the morning could potentially save you up to 25% on airfare.

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 $461, Scandinavian Airlines can have you in Helsinki from Washington, D.C. Reagan-National Airport in 15h 25m. There are 4302 mi between Washington, D.C. Reagan-National Airport and Helsinki. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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.

  • What is the cheapest month to book a flight from Washington, D.C. Reagan-National Airport to Helsinki?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Reagan-National Airport to Helsinki (average of $444). Flying from Washington, D.C. Reagan-National Airport to Helsinki in June is currently the most expensive (average of $1,082). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Helsinki?

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