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Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $363

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 8/11. 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
7:22 pm - 2:00 pm
DCA
-
HEL
11h 38m
1 stop
Finnair Logo
5:15 pm - 11:02 pm
HEL
-
DCA
12h 47m
1 stop
$687Finnair
Tue, Sep 15 - Thu, Sep 24
Icelandair Logo
5:00 pm - 2:00 pm
DCA
-
HEL
14h 00m
2 stops
Icelandair Logo
3:00 pm - 7:56 am
HEL
-
DCA
23h 56m
2 stops
$698Icelandair
Mon, Aug 31 - Thu, Sep 10
British Airways Logo
2:58 pm - 2:50 pm
DCA
-
HEL
16h 52m
1 stop
British Airways Logo
5:15 pm - 10:29 pm
HEL
-
DCA
12h 14m
1 stop
$701British Airways
Wed, May 6 - Wed, May 13
Air Canada Logo
9:40 am - 6:55 pm
DCA
-
HEL
26h 15m
2 stops
Air Canada Logo
6:35 am - 3:40 pm
HEL
-
DCA
16h 05m
2 stops
$713Air Canada
Sun, Oct 18 - Thu, Oct 22
British Airways Logo
2:59 pm - 2:50 pm
DCA
-
HEL
16h 51m
1 stop
British Airways Logo
4:50 pm - 12:44 pm
HEL
-
DCA
26h 54m
1 stop
$714British Airways
Mon, May 25 - Wed, Jun 3
Delta Logo
5:00 pm - 4:40 pm
DCA
-
HEL
16h 40m
2 stops
Delta Logo
2:05 pm - 7:12 pm
HEL
-
DCA
35h 07m
2 stops
$718Delta
Mon, Oct 19 - Tue, Oct 27
Delta Logo
11:00 am - 12:55 pm
DCA
-
HEL
18h 55m
2 stops
Delta Logo
2:05 pm - 7:12 pm
HEL
-
DCA
35h 07m
2 stops
$720Delta
Sun, Oct 18 - Tue, Oct 27
Air Canada Logo
11:00 am - 1:10 pm
DCA
-
HEL
19h 10m
2 stops
Air Canada Logo
6:35 am - 3:40 pm
HEL
-
DCA
16h 05m
2 stops
$730Air Canada
Tue, Oct 20 - Thu, Oct 22
Icelandair Logo
2:30 pm - 2:00 pm
DCA
-
HEL
16h 30m
2 stops
Icelandair Logo
3:00 pm - 7:56 am
HEL
-
DCA
23h 56m
2 stops
$733Icelandair
Thu, Oct 1 - Thu, Oct 15
American Airlines Logo
7:22 pm - 2:00 pm
DCA
-
HEL
11h 38m
1 stop
American Airlines Logo
5:15 pm - 10:57 pm
HEL
-
DCA
12h 42m
1 stop
$736American Airlines
Thu, Oct 1 - Thu, Oct 15

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

Our best British Airways deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
British Airways
May 6
DCA2:58 pmWashington, D.C. Reagan-National
16h 52m
1 stop
HEL2:50 pmHelsinki-Vantaa
May 13
HEL5:15 pmHelsinki-Vantaa
12h 14m
1 stop
DCA10:29 pmWashington, D.C. Reagan-National
$701
British Airways
May 25
DCA2:59 pmWashington, D.C. Reagan-National
16h 51m
1 stop
HEL2:50 pmHelsinki-Vantaa
Jun 3
HEL4:50 pmHelsinki-Vantaa
26h 54m
1 stop
DCA12:44 pmWashington, D.C. Reagan-National
$714
British Airways
May 4
DCA2:58 pmWashington, D.C. Reagan-National
16h 52m
1 stop
HEL2:50 pmHelsinki-Vantaa
May 11
HEL4:25 pmHelsinki-Vantaa
13h 34m
1 stop
DCA10:59 pmWashington, D.C. Reagan-National
$766

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 18
DCA1:00 pmWashington, D.C. Reagan-National
17h 10m
2 stops
HEL1:10 pmHelsinki-Vantaa
Aug 27
HEL6:35 amHelsinki-Vantaa
16h 03m
2 stops
DCA3:38 pmWashington, D.C. Reagan-National
$765
United Airlines
Aug 10
DCA4:30 pmWashington, D.C. Reagan-National
17h 30m
2 stops
HEL5:00 pmHelsinki-Vantaa
Aug 20
HEL6:35 amHelsinki-Vantaa
22h 13m
2 stops
DCA9:48 pmWashington, D.C. Reagan-National
$804
United Airlines
May 10
DCA11:00 amWashington, D.C. Reagan-National
19h 05m
2 stops
HEL1:05 pmHelsinki-Vantaa
May 17
HEL6:45 amHelsinki-Vantaa
19h 46m
2 stops
DCA7:31 pmWashington, D.C. Reagan-National
$830

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 April 23, 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

Tue 9/15

7:22 pm-2:00 pm

1 stop11h 38m

Helsinki-Vantaa

Thu 9/24

5:15 pm-11:02 pm

1 stop12h 47m

$687

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 8/31

5:00 pm-2:00 pm

2 stops14h 00m

Helsinki-Vantaa

Thu 9/10

3:00 pm-7:56 am

2 stops23h 56m

$698

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 5/6

2:58 pm-2:50 pm

1 stop16h 52m

Helsinki-Vantaa

Wed 5/13

5:15 pm-10:29 pm

1 stop12h 14m

$701

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 10/18

9:40 am-6:55 pm

2 stops26h 15m

Helsinki-Vantaa

Thu 10/22

6:35 am-3:40 pm

2 stops16h 05m

$713

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 5/25

2:59 pm-2:50 pm

1 stop16h 51m

Helsinki-Vantaa

Wed 6/3

4:50 pm-12:44 pm

1 stop26h 54m

$714

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 10/19

5:00 pm-4:40 pm

2 stops16h 40m

Helsinki-Vantaa

Tue 10/27

2:05 pm-7:12 pm

2 stops35h 07m

$718

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 10/18

11:00 am-12:55 pm

2 stops18h 55m

Helsinki-Vantaa

Tue 10/27

2:05 pm-7:12 pm

2 stops35h 07m

$720

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 10/20

11:00 am-1:10 pm

2 stops19h 10m

Helsinki-Vantaa

Thu 10/22

6:35 am-3:40 pm

2 stops16h 05m

$730

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 10/1

2:30 pm-2:00 pm

2 stops16h 30m

Helsinki-Vantaa

Thu 10/15

3:00 pm-7:56 am

2 stops23h 56m

$733
Quickest round-trip

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 10/1

7:22 pm-2:00 pm

1 stop11h 38m

Helsinki-Vantaa

Thu 10/15

5:15 pm-10:57 pm

1 stop12h 42m

$736

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?

Finnair, Delta, and United 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 36m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Helsinki takes 11h 36m
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 11h 36m, 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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