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Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $266

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington, D.C. Reagan-National Airport to Helsinki departing on 5/12. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Find the cheapest flights from Washington, D.C. Reagan-National Airport to Helsinki

Cheap round-trip flights

Enter your travel dates to find the best prices.
Multiple Airlines Logo
3:15 pm - 2:15 pm
DCA
-
HEL
16h 00m
1 stop
Multiple Airlines Logo
4:25 pm - 11:57 pm
HEL
-
DCA
14h 32m
1 stop
$551Multiple Airlines
Thu, Apr 9 - Wed, Apr 22
Multiple Airlines Logo
3:15 pm - 2:15 pm
DCA
-
HEL
16h 00m
1 stop
Multiple Airlines Logo
4:25 pm - 11:57 pm
HEL
-
DCA
14h 32m
1 stop
$559Multiple Airlines
Wed, Apr 8 - Wed, Apr 15
Finnair Logo
5:31 pm - 2:00 pm
DCA
-
HEL
13h 29m
1 stop
Finnair Logo
5:15 pm - 10:47 pm
HEL
-
DCA
12h 32m
1 stop
$563Finnair
Fri, May 1 - Thu, May 7
Multiple Airlines Logo
3:15 pm - 2:15 pm
DCA
-
HEL
16h 00m
1 stop
Multiple Airlines Logo
4:25 pm - 11:57 pm
HEL
-
DCA
14h 32m
1 stop
$567Multiple Airlines
Thu, Apr 16 - Mon, Apr 20
Delta Logo
12:16 pm - 1:05 pm
DCA
-
HEL
17h 49m
2 stops
Delta Logo
7:00 am - 4:36 pm
HEL
-
DCA
16h 36m
2 stops
$577Delta
Wed, Apr 8 - Wed, Apr 15
American Airlines Logo
5:45 pm - 2:15 pm
DCA
-
HEL
13h 30m
1 stop
American Airlines Logo
12:35 pm - 8:58 pm
HEL
-
DCA
15h 23m
1 stop
$581American Airlines
Sun, Aug 30 - Wed, Sep 16
Multiple Airlines Logo
9:35 am - 2:15 pm
DCA
-
HEL
21h 40m
1 stop
Multiple Airlines Logo
5:15 pm - 10:29 pm
HEL
-
DCA
12h 14m
1 stop
$592Multiple Airlines
Wed, Apr 1 - Wed, Apr 8
Multiple Airlines Logo
5:31 pm - 2:00 pm
DCA
-
HEL
13h 29m
1 stop
Multiple Airlines Logo
12:35 pm - 11:59 pm
HEL
-
DCA
18h 24m
1 stop
$593Multiple Airlines
Wed, May 13 - Wed, May 27
Delta Logo
12:00 pm - 1:05 pm
DCA
-
HEL
18h 05m
2 stops
Delta Logo
7:00 am - 9:50 pm
HEL
-
DCA
21h 50m
2 stops
$599Delta
Sun, Aug 30 - Wed, Sep 16
Multiple Airlines Logo
3:15 pm - 2:15 pm
DCA
-
HEL
16h 00m
1 stop
Multiple Airlines Logo
12:35 pm - 11:59 pm
HEL
-
DCA
18h 24m
1 stop
$601Multiple Airlines
Wed, May 13 - Wed, May 27

American Airlines flights from Washington, D.C. Reagan-National Airport to Helsinki

Our best American Airlines deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
American Airlines
Aug 30
DCA5:45 pmWashington, D.C. Reagan-National
13h 30m
1 stop
HEL2:15 pmHelsinki-Vantaa
Sep 16
HEL12:35 pmHelsinki-Vantaa
15h 23m
1 stop
DCA8:58 pmWashington, D.C. Reagan-National
$581
American Airlines
Apr 20
DCA5:31 pmWashington, D.C. Reagan-National
13h 29m
1 stop
HEL2:00 pmHelsinki-Vantaa
Apr 27
HEL4:25 pmHelsinki-Vantaa
14h 32m
1 stop
DCA11:57 pmWashington, D.C. Reagan-National
$613
American Airlines
Apr 7
DCA10:18 amWashington, D.C. Reagan-National
17h 27m
1 stop
HEL10:45 amHelsinki-Vantaa
Apr 14
HEL5:15 pmHelsinki-Vantaa
12h 14m
1 stop
DCA10:29 pmWashington, D.C. Reagan-National
$643

United Airlines flights from Washington, D.C. Reagan-National Airport to Helsinki

Our best United Airlines deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
United Airlines
Apr 26
DCA1:00 pmWashington, D.C. Reagan-National
22h 55m
2 stops
HEL6:55 pmHelsinki-Vantaa
May 9
HEL1:55 pmHelsinki-Vantaa
27h 04m
2 stops
DCA9:59 amWashington, D.C. Reagan-National
$627
United Airlines
Mar 12
DCA3:30 pmWashington, D.C. Reagan-National
26h 05m
2 stops
HEL11:35 pmHelsinki-Vantaa
Mar 18
HEL6:55 amHelsinki-Vantaa
42h 50m
2 stops
DCA7:45 pmWashington, D.C. Reagan-National
$629
United Airlines
May 13
DCA3:05 pmWashington, D.C. Reagan-National
26h 35m
2 stops
HEL12:40 amHelsinki-Vantaa
May 27
HEL6:35 amHelsinki-Vantaa
20h 13m
2 stops
DCA7:48 pmWashington, D.C. Reagan-National
$729

momondo Fare Finder

 
Customize your flight search to find flights from Washington, D.C. Reagan-National Airport 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, momondo users made 832,500 searches. Data last updated March 8, 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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 4/9

3:15 pm-2:15 pm

1 stop16h 00m

Helsinki-Vantaa

Wed 4/22

4:25 pm-11:57 pm

1 stop14h 32m

$551

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 4/8

3:15 pm-2:15 pm

1 stop16h 00m

Helsinki-Vantaa

Wed 4/15

4:25 pm-11:57 pm

1 stop14h 32m

$559
Quickest round-trip

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Fri 5/1

5:31 pm-2:00 pm

1 stop13h 29m

Helsinki-Vantaa

Thu 5/7

5:15 pm-10:47 pm

1 stop12h 32m

$563

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 4/16

3:15 pm-2:15 pm

1 stop16h 00m

Helsinki-Vantaa

Mon 4/20

4:25 pm-11:57 pm

1 stop14h 32m

$567

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 4/8

12:16 pm-1:05 pm

2 stops17h 49m

Helsinki-Vantaa

Wed 4/15

7:00 am-4:36 pm

2 stops16h 36m

$577

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 8/30

5:45 pm-2:15 pm

1 stop13h 30m

Helsinki-Vantaa

Wed 9/16

12:35 pm-8:58 pm

1 stop15h 23m

$581

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 4/1

9:35 am-2:15 pm

1 stop21h 40m

Helsinki-Vantaa

Wed 4/8

5:15 pm-10:29 pm

1 stop12h 14m

$592

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 5/13

5:31 pm-2:00 pm

1 stop13h 29m

Helsinki-Vantaa

Wed 5/27

12:35 pm-11:59 pm

1 stop18h 24m

$593

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 8/30

12:00 pm-1:05 pm

2 stops18h 05m

Helsinki-Vantaa

Wed 9/16

7:00 am-9:50 pm

2 stops21h 50m

$599

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 5/13

3:15 pm-2:15 pm

1 stop16h 00m

Helsinki-Vantaa

Wed 5/27

12:35 pm-11:59 pm

1 stop18h 24m

$601

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helsinki from

How to get the cheapest flight ticket from Washington, D.C. Reagan-National Airport to Helsinki

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest airline that flies from Washington, D.C. Reagan-National to Helsinki-Vantaa?

Air Canada, United Airlines, and American Airlines are the most popular carriers operating from Washington, D.C. Reagan-National to Helsinki-Vantaa

When to book flights from Washington, D.C. Reagan-National Airport to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. Reagan-National Airport to Helsinki according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Washington, D.C. Reagan-National Airport to Helsinki (DCA to HEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. Reagan-National Airport to Helsinki

Fastest flight time

11h 38m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Helsinki takes 11h 38m
There are no direct flights from Washington, D.C. Reagan-National Airport to Helsinki. There are no popular flight routes from Washington, D.C. Reagan-National Airport to Helsinki.
Search flight deals

  • How far is Washington, D.C. Reagan-National to Helsinki-Vantaa by plane?

    A flight from Washington, D.C. Reagan-National to Helsinki-Vantaa will travel around 4306.2 mi. Flights usually cover this in 11h 38m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport?

    Prices for flights from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport refresh daily.

  • How old do you have to be to fly from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport?

    Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Washington, D.C. Reagan-National Airport to Helsinki-Vantaa Airport.

  • What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

    The travel and health documents you'll need for your trip to Helsinki-Vantaa Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Helsinki-Vantaa Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Traveling to a place near Helsinki?

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

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Helsinki?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Washington, D.C. to Helsinki. momondo saves you time and could save you money on your trip.

Can I find flights from Washington, D.C. to Helsinki with flexible booking policies on momondo?

momondo does allow users to show only those flights to Helsinki from Washington, D.C. which offer a flexible booking policy as well as other useful filters and features.

How can momondo help me find flights from Washington, D.C. to Helsinki?

momondo helps you find the best flight between Washington, D.C. and Helsinki by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Washington, D.C. to Helsinki right now. Can momondo alert me if prices change?

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