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Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $326

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 1/15. 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.
Scandinavian Airlines Logo
11:10 am - 10:40 am
DCA
-
HEL
16h 30m2 stops
Scandinavian Airlines Logo
11:20 am - 10:48 pm
HEL
-
DCA
18h 28m2 stops
$473Scandinavian Airlines
Wed, Jan 21 - Wed, Jan 28
Scandinavian Airlines Logo
11:10 am - 8:20 pm
DCA
-
HEL
26h 10m2 stops
Scandinavian Airlines Logo
8:55 pm - 10:48 pm
HEL
-
DCA
32h 53m3 stops
$480Scandinavian Airlines
Mon, Jan 19 - Mon, Jan 26
Scandinavian Airlines Logo
11:10 am - 10:40 am
DCA
-
HEL
16h 30m2 stops
Scandinavian Airlines Logo
11:20 am - 10:48 pm
HEL
-
DCA
18h 28m2 stops
$485Scandinavian Airlines
Sun, Jan 11 - Sun, Jan 18
Scandinavian Airlines Logo
11:10 am - 3:25 pm
DCA
-
HEL
21h 15m3 stops
Scandinavian Airlines Logo
8:55 pm - 10:48 pm
HEL
-
DCA
32h 53m3 stops
$487Scandinavian Airlines
Mon, Jan 19 - Mon, Jan 26
Finnair Logo
5:45 pm - 1:55 pm
DCA
-
HEL
13h 10m1 stop
Finnair Logo
5:00 pm - 10:03 pm
HEL
-
DCA
12h 03m1 stop
$523Finnair
Wed, Jan 21 - Wed, Jan 28
British Airways Logo
1:35 pm - 12:20 pm
DCA
-
HEL
15h 45m2 stops
British Airways Logo
4:50 pm - 10:03 pm
HEL
-
DCA
12h 13m1 stop
$526British Airways
Wed, Jan 14 - Tue, Jan 20
Finnair Logo
5:45 pm - 1:55 pm
DCA
-
HEL
13h 10m1 stop
Finnair Logo
4:50 pm - 10:03 pm
HEL
-
DCA
12h 13m1 stop
$527Finnair
Wed, Jan 28 - Tue, Feb 10
American Airlines Logo
1:30 pm - 1:55 pm
DCA
-
HEL
17h 25m1 stop
American Airlines Logo
12:30 pm - 11:00 pm
HEL
-
DCA
16h 30m1 stop
$533American Airlines
Fri, Mar 6 - Fri, Mar 13
British Airways Logo
1:35 pm - 12:20 pm
DCA
-
HEL
15h 45m2 stops
British Airways Logo
7:50 am - 10:03 pm
HEL
-
DCA
21h 13m2 stops
$539British Airways
Wed, Jan 14 - Tue, Jan 20
American Airlines Logo
10:47 am - 10:45 am
DCA
-
HEL
16h 58m1 stop
American Airlines Logo
12:30 pm - 8:57 pm
HEL
-
DCA
15h 27m1 stop
$541American Airlines
Wed, Feb 11 - Wed, Feb 18

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
Mar 6
DCA1:30 pmWashington, D.C. Reagan-National
17h 25m
1 stop
HEL1:55 pmHelsinki-Vantaa
Mar 13
HEL12:30 pmHelsinki-Vantaa
16h 30m
1 stop
DCA11:00 pmWashington, D.C. Reagan-National
$533
Find similar
American Airlines
Feb 11
DCA11:50 amWashington, D.C. Reagan-National
15h 55m
1 stop
HEL10:45 amHelsinki-Vantaa
Feb 18
HEL5:00 pmHelsinki-Vantaa
12h 05m
1 stop
DCA10:05 pmWashington, D.C. Reagan-National
$539
Find similar
American Airlines
Feb 11
DCA11:50 amWashington, D.C. Reagan-National
15h 55m
1 stop
HEL10:45 amHelsinki-Vantaa
Feb 18
HEL12:30 pmHelsinki-Vantaa
15h 27m
1 stop
DCA8:57 pmWashington, D.C. Reagan-National
$541
Find similar

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
May 11
DCA3:00 pmWashington, D.C. Reagan-National
15h 05m
2 stops
HEL1:05 pmHelsinki-Vantaa
Oct 26
HEL6:50 amHelsinki-Vantaa
19h 07m
2 stops
DCA7:57 pmWashington, D.C. Reagan-National
$626
Find similar
United Airlines
May 11
DCA3:00 pmWashington, D.C. Reagan-National
15h 05m
2 stops
HEL1:05 pmHelsinki-Vantaa
Oct 26
HEL6:50 amHelsinki-Vantaa
19h 48m
3 stops
DCA8:38 pmWashington, D.C. Reagan-National
$651
Find similar

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 December 7, 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

Fly to

Route

Depart

Return

Price

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 1/21

11:10 am-10:40 am

2 stops16h 30m

Helsinki-Vantaa

Wed 1/28

11:20 am-10:48 pm

2 stops18h 28m

$473

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 1/19

11:10 am-8:20 pm

2 stops26h 10m

Helsinki-Vantaa

Mon 1/26

8:55 pm-10:48 pm

3 stops32h 53m

$480

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 1/11

11:10 am-10:40 am

2 stops16h 30m

Helsinki-Vantaa

Sun 1/18

11:20 am-10:48 pm

2 stops18h 28m

$485

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 1/19

11:10 am-3:25 pm

3 stops21h 15m

Helsinki-Vantaa

Mon 1/26

8:55 pm-10:48 pm

3 stops32h 53m

$487

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 1/21

5:45 pm-1:55 pm

1 stop13h 10m

Helsinki-Vantaa

Wed 1/28

5:00 pm-10:03 pm

1 stop12h 03m

$523

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 1/14

1:35 pm-12:20 pm

2 stops15h 45m

Helsinki-Vantaa

Tue 1/20

4:50 pm-10:03 pm

1 stop12h 13m

$526

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 1/28

5:45 pm-1:55 pm

1 stop13h 10m

Helsinki-Vantaa

Tue 2/10

4:50 pm-10:03 pm

1 stop12h 13m

$527

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Fri 3/6

1:30 pm-1:55 pm

1 stop17h 25m

Helsinki-Vantaa

Fri 3/13

12:30 pm-11:00 pm

1 stop16h 30m

$533

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 1/14

1:35 pm-12:20 pm

2 stops15h 45m

Helsinki-Vantaa

Tue 1/20

7:50 am-10:03 pm

2 stops21h 13m

$539

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/11

10:47 am-10:45 am

1 stop16h 58m

Helsinki-Vantaa

Wed 2/18

12:30 pm-8:57 pm

1 stop15h 27m

$541

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 day to depart on your flight to Helsinki?

The cheapest day to depart on your flight to Helsinki is on a Tuesday when prices can be found for as low as $364. This is often the case because there is less demand to fly during this day of the week. Flights from Washington, D.C. Reagan-National Airport to Helsinki on a Wednesday will generally be more expensive and average around $692. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Helsinki?

According to our data, the cheapest time of day to fly to Helsinki is in the evening. momondo users have found flights departing from Washington, D.C. Reagan-National Airport to Helsinki in the evening for as low as $399. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. In the afternoon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $541 per ticket.

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 00m

Direct flights

None
The fastest flight from Washington, D.C. Reagan-National Airport to Helsinki takes 12h 00m
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 13h 05m, 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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