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Cheap flights from Washington, D.C. Reagan-National Airport to Helsinki from $369

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 9/29. 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

Scandinavian Airlines Logo
12:15 pm - 10:40 amDCA-HEL
15h 25m2 stops
Scandinavian Airlines Logo
11:20 am - 10:56 pmHEL-DCA
18h 36m2 stops
$461Scandinavian Airlines
Find Deal
Tue, Nov 18 - Mon, Nov 24
Air Canada Logo
11:05 am - 6:50 pmDCA-HEL
24h 45m2 stops
Air Canada Logo
12:45 pm - 10:26 amHEL-DCA
28h 41m2 stops
$481Air Canada
Find Deal
Mon, Dec 1 - Mon, Dec 8
Logo
5:54 pm - 1:55 pmDCA-HEL
13h 01m1 stop
Logo
12:30 pm - 9:00 pmHEL-DCA
15h 30m1 stop
$482
Find Deal
Wed, Dec 3 - Wed, Dec 10
American Airlines Logo
7:06 pm - 1:55 pmDCA-HEL
12h 49m1 stop
American Airlines Logo
12:30 pm - 11:00 pmHEL-DCA
17h 30m1 stop
$483American Airlines
Find Deal
Thu, Oct 30 - Wed, Nov 12
Scandinavian Airlines Logo
11:10 am - 8:20 pmDCA-HEL
26h 10m2 stops
Scandinavian Airlines Logo
6:15 am - 10:56 pmHEL-DCA
23h 41m2 stops
$484Scandinavian Airlines
Find Deal
Tue, Nov 11 - Fri, Nov 21
American Airlines Logo
6:01 pm - 1:55 pmDCA-HEL
13h 54m2 stops
American Airlines Logo
12:30 pm - 11:00 pmHEL-DCA
17h 30m1 stop
$486American Airlines
Find Deal
Mon, Oct 27 - Mon, Nov 10
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
Find Deal
Wed, Feb 11 - Wed, Feb 18
Logo
9:40 am - 1:10 pmDCA-HEL
21h 30m2 stops
Logo
12:45 pm - 9:56 pmHEL-DCA
16h 11m2 stops
$503
Find Deal
Wed, Oct 29 - Wed, Nov 5
United Airlines Logo
3:20 pm - 12:00 pmDCA-HEL
14h 40m2 stops
United Airlines Logo
6:55 am - 3:31 pmHEL-DCA
15h 36m2 stops
$507United Airlines
Find Deal
Thu, Oct 30 - Thu, Nov 6
United Airlines Logo
12:59 pm - 12:00 pmDCA-HEL
16h 01m2 stops
United Airlines Logo
6:55 am - 9:56 pmHEL-DCA
22h 01m2 stops
$537United Airlines
Find Deal
Tue, Dec 23 - Mon, Dec 29

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
Oct 30
DCA7:06 pmWashington, D.C. Reagan-National
12h 49m
1 stop
HEL1:55 pmHelsinki-Vantaa
Nov 12
HEL12:30 pmHelsinki-Vantaa
17h 30m
1 stop
DCA11:00 pmWashington, D.C. Reagan-National
$483
Find similar
American Airlines
Oct 27
DCA6:01 pmWashington, D.C. Reagan-National
13h 54m
2 stops
HEL1:55 pmHelsinki-Vantaa
Nov 10
HEL12:30 pmHelsinki-Vantaa
17h 30m
1 stop
DCA11:00 pmWashington, D.C. Reagan-National
$486
Find similar
American Airlines
Dec 10
DCA3:54 pmWashington, D.C. Reagan-National
15h 01m
2 stops
HEL1:55 pmHelsinki-Vantaa
Dec 15
HEL12:25 pmHelsinki-Vantaa
16h 04m
1 stop
DCA9:29 pmWashington, D.C. Reagan-National
$516
Find similar

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

Our best Scandinavian Airlines deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
Scandinavian Airlines
Nov 18
DCA12:15 pmWashington, D.C. Reagan-National
15h 25m
2 stops
HEL10:40 amHelsinki-Vantaa
Nov 24
HEL11:20 amHelsinki-Vantaa
18h 36m
2 stops
DCA10:56 pmWashington, D.C. Reagan-National
$461
Find similar
Scandinavian Airlines
Nov 11
DCA11:10 amWashington, D.C. Reagan-National
26h 10m
2 stops
HEL8:20 pmHelsinki-Vantaa
Nov 21
HEL6:15 amHelsinki-Vantaa
23h 41m
2 stops
DCA10:56 pmWashington, D.C. Reagan-National
$484
Find similar
Scandinavian Airlines
Nov 11
DCA1:15 pmWashington, D.C. Reagan-National
19h 10m
3 stops
HEL3:25 pmHelsinki-Vantaa
Nov 21
HEL11:20 amHelsinki-Vantaa
18h 36m
2 stops
DCA10:56 pmWashington, D.C. Reagan-National
$510
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 September 15, 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

Tue 11/18

12:15 pm-10:40 am

2 stops15h 25m

Helsinki-Vantaa

Mon 11/24

11:20 am-10:56 pm

2 stops18h 36m

$461

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 12/1

11:05 am-6:50 pm

2 stops24h 45m

Helsinki-Vantaa

Mon 12/8

12:45 pm-10:26 am

2 stops28h 41m

$481

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

$482

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 10/30

7:06 pm-1:55 pm

1 stop12h 49m

Helsinki-Vantaa

Wed 11/12

12:30 pm-11:00 pm

1 stop17h 30m

$483

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 11/11

11:10 am-8:20 pm

2 stops26h 10m

Helsinki-Vantaa

Fri 11/21

6:15 am-10:56 pm

2 stops23h 41m

$484

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 10/27

6:01 pm-1:55 pm

2 stops13h 54m

Helsinki-Vantaa

Mon 11/10

12:30 pm-11:00 pm

1 stop17h 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

Wed 10/29

9:40 am-1:10 pm

2 stops21h 30m

Helsinki-Vantaa

Wed 11/5

12:45 pm-9:56 pm

2 stops16h 11m

$503

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 10/30

3:20 pm-12:00 pm

2 stops14h 40m

Helsinki-Vantaa

Thu 11/6

6:55 am-3:31 pm

2 stops15h 36m

$507

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 12/23

12:59 pm-12:00 pm

2 stops16h 01m

Helsinki-Vantaa

Mon 12/29

6:55 am-9:56 pm

2 stops22h 01m

$537

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 54m, 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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