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Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $264

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 5/19. 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
$517Multiple Airlines
Thu, May 7 - Thu, May 14
Finnair Logo
5:31 pm - 2:00 pm
DCA
-
HEL
13h 29m
1 stop
Finnair Logo
5:20 pm - 10:29 pm
HEL
-
DCA
12h 09m
1 stop
$522Finnair
Wed, Apr 29 - Wed, May 6
Air Canada Logo
4:15 pm - 6:50 pm
DCA
-
HEL
19h 35m
2 stops
Air Canada Logo
6:50 am - 9:56 pm
HEL
-
DCA
22h 06m
2 stops
$528Air Canada
Mon, Feb 16 - Mon, Mar 2
Multiple Airlines Logo
2:19 pm - 1:55 pm
DCA
-
HEL
17h 36m
1 stop
Multiple Airlines Logo
5:20 pm - 10:29 pm
HEL
-
DCA
12h 09m
1 stop
$539Multiple Airlines
Sun, Mar 22 - Tue, Mar 31
Multiple Airlines Logo
5:52 pm - 1:55 pm
DCA
-
HEL
14h 03m
1 stop
Multiple Airlines Logo
4:50 pm - 7:23 am
HEL
-
DCA
20h 33m
1 stop
$540Multiple Airlines
Wed, Mar 18 - Thu, Mar 26
Multiple Airlines Logo
1:44 pm - 1:55 pm
DCA
-
HEL
17h 11m
1 stop
Multiple Airlines Logo
12:30 pm - 11:00 pm
HEL
-
DCA
17h 30m
1 stop
$542Multiple Airlines
Mon, Feb 16 - Mon, Mar 2
American Airlines Logo
1:25 pm - 2:00 pm
DCA
-
HEL
17h 35m
1 stop
American Airlines Logo
4:25 pm - 10:59 pm
HEL
-
DCA
13h 34m
1 stop
$543American Airlines
Fri, Apr 17 - Thu, Apr 23
American Airlines Logo
1:44 pm - 1:55 pm
DCA
-
HEL
17h 11m
1 stop
American Airlines Logo
12:30 pm - 11:00 pm
HEL
-
DCA
16h 30m
1 stop
$544American Airlines
Thu, Mar 5 - Thu, Mar 12
Multiple Airlines Logo
5:00 pm - 1:55 pm
DCA
-
HEL
14h 55m
1 stop
Multiple Airlines Logo
4:50 pm - 9:59 am
HEL
-
DCA
23h 09m
1 stop
$545Multiple Airlines
Wed, Mar 18 - Wed, Mar 25
American Airlines Logo
1:48 pm - 1:55 pm
DCA
-
HEL
18h 07m
1 stop
American Airlines Logo
1:25 pm - 11:24 pm
HEL
-
DCA
16h 59m
1 stop
$547American Airlines
Wed, Mar 18 - Mon, Mar 30

Air Canada flights from Washington, D.C. Reagan-National Airport to Helsinki

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
Air Canada
Feb 16
DCA4:15 pmWashington, D.C. Reagan-National
19h 35m
2 stops
HEL6:50 pmHelsinki-Vantaa
Mar 2
HEL6:50 amHelsinki-Vantaa
22h 06m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
$528
Air Canada
Mar 18
DCA11:05 amWashington, D.C. Reagan-National
25h 45m
2 stops
HEL6:50 pmHelsinki-Vantaa
Mar 31
HEL2:05 pmHelsinki-Vantaa
34h 58m
2 stops
DCA6:03 pmWashington, D.C. Reagan-National
$553
Air Canada
Mar 16
DCA8:40 pmWashington, D.C. Reagan-National
40h 10m
2 stops
HEL6:50 pmHelsinki-Vantaa
Mar 31
HEL2:05 pmHelsinki-Vantaa
34h 58m
2 stops
DCA6:03 pmWashington, D.C. Reagan-National
$558

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
Apr 17
DCA1:25 pmWashington, D.C. Reagan-National
17h 35m
1 stop
HEL2:00 pmHelsinki-Vantaa
Apr 23
HEL4:25 pmHelsinki-Vantaa
13h 34m
1 stop
DCA10:59 pmWashington, D.C. Reagan-National
$543
American Airlines
Mar 5
DCA1:44 pmWashington, D.C. Reagan-National
17h 11m
1 stop
HEL1:55 pmHelsinki-Vantaa
Mar 12
HEL12:30 pmHelsinki-Vantaa
16h 30m
1 stop
DCA11:00 pmWashington, D.C. Reagan-National
$544
American Airlines
Mar 18
DCA1:48 pmWashington, D.C. Reagan-National
18h 07m
1 stop
HEL1:55 pmHelsinki-Vantaa
Mar 30
HEL1:25 pmHelsinki-Vantaa
16h 59m
1 stop
DCA11:24 pmWashington, D.C. Reagan-National
$547

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 February 4, 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

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 5/7

3:15 pm-2:15 pm

1 stop16h 00m

Helsinki-Vantaa

Thu 5/14

4:25 pm-11:57 pm

1 stop14h 32m

$517

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 4/29

5:31 pm-2:00 pm

1 stop13h 29m

Helsinki-Vantaa

Wed 5/6

5:20 pm-10:29 pm

1 stop12h 09m

$522

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 2/16

4:15 pm-6:50 pm

2 stops19h 35m

Helsinki-Vantaa

Mon 3/2

6:50 am-9:56 pm

2 stops22h 06m

$528

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 3/22

2:19 pm-1:55 pm

1 stop17h 36m

Helsinki-Vantaa

Tue 3/31

5:20 pm-10:29 pm

1 stop12h 09m

$539

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 3/18

5:52 pm-1:55 pm

1 stop14h 03m

Helsinki-Vantaa

Thu 3/26

4:50 pm-7:23 am

1 stop20h 33m

$540

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 2/16

1:44 pm-1:55 pm

1 stop17h 11m

Helsinki-Vantaa

Mon 3/2

12:30 pm-11:00 pm

1 stop17h 30m

$542

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Fri 4/17

1:25 pm-2:00 pm

1 stop17h 35m

Helsinki-Vantaa

Thu 4/23

4:25 pm-10:59 pm

1 stop13h 34m

$543

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 3/5

1:44 pm-1:55 pm

1 stop17h 11m

Helsinki-Vantaa

Thu 3/12

12:30 pm-11:00 pm

1 stop16h 30m

$544

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 3/18

5:00 pm-1:55 pm

1 stop14h 55m

Helsinki-Vantaa

Wed 3/25

4:50 pm-9:59 am

1 stop23h 09m

$545

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 3/18

1:48 pm-1:55 pm

1 stop18h 07m

Helsinki-Vantaa

Mon 3/30

1:25 pm-11:24 pm

1 stop16h 59m

$547

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, Finnair, and British Airways 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 43m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Helsinki takes 11h 43m
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 43m, 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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