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Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $329

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 8/26. 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.
Finnair Logo
7:06 pm - 2:00 pm
DCA
-
HEL
11h 54m
1 stop
Finnair Logo
5:15 pm - 10:57 pm
HEL
-
DCA
12h 42m
1 stop
$683Finnair
Wed, Oct 7 - Wed, Oct 21
Icelandair Logo
3:50 pm - 2:00 pm
DCA
-
HEL
15h 10m
2 stops
Icelandair Logo
3:00 pm - 10:02 am
HEL
-
DCA
26h 02m
2 stops
$690Icelandair
Tue, Sep 15 - Tue, Oct 6
Icelandair Logo
2:30 pm - 2:00 pm
DCA
-
HEL
16h 30m
2 stops
Icelandair Logo
7:10 am - 7:56 am
HEL
-
DCA
31h 46m
2 stops
$733Icelandair
Wed, Oct 7 - Sun, Oct 18
Multiple Airlines Logo
3:50 pm - 2:15 pm
DCA
-
HEL
15h 25m
1 stop
Multiple Airlines Logo
5:15 pm - 10:57 pm
HEL
-
DCA
12h 42m
1 stop
$736Multiple Airlines
Wed, Oct 7 - Sun, Oct 18
Scandinavian Airlines Logo
6:05 am - 3:20 pm
DCA
-
HEL
26h 15m
2 stops
Scandinavian Airlines Logo
9:05 pm - 11:26 pm
HEL
-
DCA
33h 21m
2 stops
$737Scandinavian Airlines
Mon, Sep 7 - Wed, Sep 23
Multiple Airlines Logo
6:23 pm - 2:00 pm
DCA
-
HEL
12h 37m
1 stop
Multiple Airlines Logo
4:25 pm - 11:59 pm
HEL
-
DCA
14h 34m
1 stop
$743Multiple Airlines
Sun, Aug 23 - Fri, Aug 28
Finnair Logo
7:22 pm - 2:00 pm
DCA
-
HEL
11h 38m
1 stop
Finnair Logo
5:15 pm - 11:02 pm
HEL
-
DCA
12h 47m
1 stop
$744Finnair
Wed, Sep 9 - Mon, Sep 14
Finnair Logo
7:22 pm - 2:00 pm
DCA
-
HEL
11h 38m
1 stop
Finnair Logo
5:15 pm - 11:02 pm
HEL
-
DCA
12h 47m
1 stop
$745Finnair
Wed, Sep 9 - Mon, Sep 14
Icelandair Logo
2:00 pm - 2:00 pm
DCA
-
HEL
17h 00m
2 stops
Icelandair Logo
3:00 pm - 7:56 am
HEL
-
DCA
23h 56m
2 stops
$757Icelandair
Mon, Sep 7 - Wed, Sep 16
United Airlines Logo
1:00 pm - 6:55 pm
DCA
-
HEL
22h 55m
2 stops
United Airlines Logo
6:55 am - 8:10 pm
HEL
-
DCA
20h 15m
2 stops
$759United Airlines
Sun, Aug 23 - Fri, Aug 28

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

Our best Icelandair deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
Icelandair
Sep 15
DCA3:50 pmWashington, D.C. Reagan-National
15h 10m
2 stops
HEL2:00 pmHelsinki-Vantaa
Oct 6
HEL3:00 pmHelsinki-Vantaa
26h 02m
2 stops
DCA10:02 amWashington, D.C. Reagan-National
$690
Icelandair
Oct 7
DCA2:30 pmWashington, D.C. Reagan-National
16h 30m
2 stops
HEL2:00 pmHelsinki-Vantaa
Oct 18
HEL7:10 amHelsinki-Vantaa
31h 46m
2 stops
DCA7:56 amWashington, D.C. Reagan-National
$733
Icelandair
May 12
DCA3:35 pmWashington, D.C. Reagan-National
15h 25m
2 stops
HEL2:00 pmHelsinki-Vantaa
May 20
HEL3:00 pmHelsinki-Vantaa
23h 55m
2 stops
DCA7:55 amWashington, D.C. Reagan-National
$739

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
Aug 23
DCA1:00 pmWashington, D.C. Reagan-National
22h 55m
2 stops
HEL6:55 pmHelsinki-Vantaa
Aug 28
HEL6:55 amHelsinki-Vantaa
20h 15m
2 stops
DCA8:10 pmWashington, D.C. Reagan-National
$759
United Airlines
May 15
DCA11:55 amWashington, D.C. Reagan-National
22h 35m
2 stops
HEL5:30 pmHelsinki-Vantaa
May 18
HEL6:55 amHelsinki-Vantaa
17h 30m
2 stops
DCA5:25 pmWashington, D.C. Reagan-National
$1,125

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 May 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

Cheapest round-trip

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 10/7

7:06 pm-2:00 pm

1 stop11h 54m

Helsinki-Vantaa

Wed 10/21

5:15 pm-10:57 pm

1 stop12h 42m

$683

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 9/15

3:50 pm-2:00 pm

2 stops15h 10m

Helsinki-Vantaa

Tue 10/6

3:00 pm-10:02 am

2 stops26h 02m

$690

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 10/7

2:30 pm-2:00 pm

2 stops16h 30m

Helsinki-Vantaa

Sun 10/18

7:10 am-7:56 am

2 stops31h 46m

$733

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 10/7

3:50 pm-2:15 pm

1 stop15h 25m

Helsinki-Vantaa

Sun 10/18

5:15 pm-10:57 pm

1 stop12h 42m

$736

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 9/7

6:05 am-3:20 pm

2 stops26h 15m

Helsinki-Vantaa

Wed 9/23

9:05 pm-11:26 pm

2 stops33h 21m

$737

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 8/23

6:23 pm-2:00 pm

1 stop12h 37m

Helsinki-Vantaa

Fri 8/28

4:25 pm-11:59 pm

1 stop14h 34m

$743
Quickest round-trip

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 9/9

7:22 pm-2:00 pm

1 stop11h 38m

Helsinki-Vantaa

Mon 9/14

5:15 pm-11:02 pm

1 stop12h 47m

$744

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 9/9

7:22 pm-2:00 pm

1 stop11h 38m

Helsinki-Vantaa

Mon 9/14

5:15 pm-11:02 pm

1 stop12h 47m

$745

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 9/7

2:00 pm-2:00 pm

2 stops17h 00m

Helsinki-Vantaa

Wed 9/16

3:00 pm-7:56 am

2 stops23h 56m

$757

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 8/23

1:00 pm-6:55 pm

2 stops22h 55m

Helsinki-Vantaa

Fri 8/28

6:55 am-8:10 pm

2 stops20h 15m

$759

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?

American Airlines, Delta, and Finnair 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

12h 37m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Helsinki takes 12h 37m
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

Frequently asked questions about flying from Washington, D.C. Reagan-National Airport to Helsinki

  • 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 12h 37m, 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?

Price alerts on flights to Helsinki from Washington, D.C. are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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