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Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $408

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 9/2. 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

Logo
5:58 pm - 1:55 pmDCA-HEL
12h 57m1 stop
Logo
4:50 pm - 10:02 amHEL-DCA
24h 12m1 stop
$431
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Wed, Nov 26 - Tue, Dec 2
Logo
5:54 pm - 1:55 pmDCA-HEL
13h 01m1 stop
Logo
12:30 pm - 9:00 pmHEL-DCA
15h 30m1 stop
$434
Find Deal
Wed, Dec 3 - Wed, Dec 10
Finnair Logo
5:49 pm - 1:55 pmDCA-HEL
13h 06m1 stop
Finnair Logo
4:50 pm - 10:39 pmHEL-DCA
12h 49m1 stop
$454Finnair
Find Deal
Tue, Jan 13 - Sat, Jan 24
Logo
6:00 am - 6:50 pmDCA-HEL
29h 50m2 stops
Logo
12:45 pm - 9:56 pmHEL-DCA
16h 11m2 stops
$457
Find Deal
Wed, Dec 3 - Wed, Dec 10
Air Canada Logo
11:05 am - 6:50 pmDCA-HEL
24h 45m2 stops
Air Canada Logo
12:45 pm - 9:56 pmHEL-DCA
16h 11m2 stops
$460Air Canada
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Wed, Nov 12 - Wed, Nov 26
American Airlines Logo
4:59 pm - 1:55 pmDCA-HEL
13h 56m2 stops
American Airlines Logo
12:30 pm - 9:00 pmHEL-DCA
15h 30m1 stop
$486American Airlines
Find Deal
Tue, Nov 25 - Tue, Dec 2
Iberia Logo
12:55 pm - 3:30 pmDCA-HEL
19h 35m2 stops
Iberia Logo
5:00 pm - 10:35 pmHEL-DCA
12h 35m1 stop
$495Iberia
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Wed, Feb 11 - Wed, Feb 18
Air Canada Logo
11:05 am - 1:10 pmDCA-HEL
19h 05m2 stops
Air Canada Logo
1:55 pm - 8:55 amHEL-DCA
26h 00m2 stops
$501Air Canada
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Tue, Nov 25 - Tue, Dec 2
American Airlines Logo
1:44 pm - 1:55 pmDCA-HEL
17h 11m1 stop
American Airlines Logo
7:50 am - 3:59 pmHEL-DCA
15h 09m2 stops
$509American Airlines
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Wed, Nov 12 - Wed, Nov 26
Finnair Logo
7:23 pm - 2:00 pmDCA-HEL
11h 37m1 stop
Finnair Logo
5:15 pm - 11:07 pmHEL-DCA
12h 52m1 stop
$557Finnair
Find Deal
Tue, Sep 16 - Thu, Sep 25

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

Our best Delta deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
Delta
Sep 16
DCA5:30 pmWashington, D.C. Reagan-National
16h 10m
2 stops
HEL4:40 pmHelsinki-Vantaa
Sep 25
HEL7:10 amHelsinki-Vantaa
17h 47m
2 stops
DCA5:57 pmWashington, D.C. Reagan-National
$528
Find similar
Delta
Oct 10
DCA12:15 pmWashington, D.C. Reagan-National
17h 45m
2 stops
HEL1:00 pmHelsinki-Vantaa
Oct 18
HEL7:20 amHelsinki-Vantaa
17h 40m
2 stops
DCA6:00 pmWashington, D.C. Reagan-National
$544
Find similar
Delta
Sep 15
DCA5:30 pmWashington, D.C. Reagan-National
16h 10m
2 stops
HEL4:40 pmHelsinki-Vantaa
Sep 24
HEL6:40 amHelsinki-Vantaa
16h 55m
2 stops
DCA4:35 pmWashington, D.C. Reagan-National
$551
Find similar

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
Nov 25
DCA4:59 pmWashington, D.C. Reagan-National
13h 56m
2 stops
HEL1:55 pmHelsinki-Vantaa
Dec 2
HEL12:30 pmHelsinki-Vantaa
15h 30m
1 stop
DCA9:00 pmWashington, D.C. Reagan-National
$486
Find similar
American Airlines
Nov 12
DCA1:44 pmWashington, D.C. Reagan-National
17h 11m
1 stop
HEL1:55 pmHelsinki-Vantaa
Nov 26
HEL7:50 amHelsinki-Vantaa
15h 09m
2 stops
DCA3:59 pmWashington, D.C. Reagan-National
$509
Find similar
American Airlines
Oct 10
DCA7:06 pmWashington, D.C. Reagan-National
11h 54m
1 stop
HEL2:00 pmHelsinki-Vantaa
Oct 17
HEL5:15 pmHelsinki-Vantaa
12h 42m
1 stop
DCA10:57 pmWashington, D.C. Reagan-National
$555
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 August 28, 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 11/26

5:58 pm-1:55 pm

1 stop12h 57m

Helsinki-Vantaa

Tue 12/2

4:50 pm-10:02 am

1 stop24h 12m

$431

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 12/3

5:54 pm-1:55 pm

1 stop13h 01m

Helsinki-Vantaa

Wed 12/10

12:30 pm-9:00 pm

1 stop15h 30m

$434

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 1/13

5:49 pm-1:55 pm

1 stop13h 06m

Helsinki-Vantaa

Sat 1/24

4:50 pm-10:39 pm

1 stop12h 49m

$454

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 12/3

6:00 am-6:50 pm

2 stops29h 50m

Helsinki-Vantaa

Wed 12/10

12:45 pm-9:56 pm

2 stops16h 11m

$457

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 11/12

11:05 am-6:50 pm

2 stops24h 45m

Helsinki-Vantaa

Wed 11/26

12:45 pm-9:56 pm

2 stops16h 11m

$460

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 11/25

4:59 pm-1:55 pm

2 stops13h 56m

Helsinki-Vantaa

Tue 12/2

12:30 pm-9:00 pm

1 stop15h 30m

$486

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/11

12:55 pm-3:30 pm

2 stops19h 35m

Helsinki-Vantaa

Wed 2/18

5:00 pm-10:35 pm

1 stop12h 35m

$495

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 11/25

11:05 am-1:10 pm

2 stops19h 05m

Helsinki-Vantaa

Tue 12/2

1:55 pm-8:55 am

2 stops26h 00m

$501

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 11/12

1:44 pm-1:55 pm

1 stop17h 11m

Helsinki-Vantaa

Wed 11/26

7:50 am-3:59 pm

2 stops15h 09m

$509

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 9/16

7:23 pm-2:00 pm

1 stop11h 37m

Helsinki-Vantaa

Thu 9/25

5:15 pm-11:07 pm

1 stop12h 52m

$557

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

Direct flights

None
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.
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  • 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 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
Kotka
Lahti

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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