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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 11/18. 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.
Multiple Airlines Logo
4:10 pm - 6:50 pmDCA-HEL
19h 40m2 stops
Multiple Airlines Logo
12:45 pm - 9:56 pmHEL-DCA
16h 11m2 stops
$451Multiple Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Multiple Airlines Logo
11:05 am - 1:10 pmDCA-HEL
19h 05m2 stops
Multiple Airlines Logo
12:45 pm - 9:56 pmHEL-DCA
16h 11m2 stops
$466Multiple Airlines
Find Deal
Tue, Dec 2 - Mon, Dec 8
Scandinavian Airlines Logo
12:15 pm - 10:40 amDCA-HEL
15h 25m2 stops
Scandinavian Airlines Logo
6:15 am - 10:57 pmHEL-DCA
23h 42m2 stops
$472Scandinavian Airlines
Find Deal
Mon, Dec 8 - Sat, Dec 13
Air Canada Logo
11:05 am - 1:10 pmDCA-HEL
19h 05m2 stops
Air Canada Logo
12:45 pm - 9:56 pmHEL-DCA
16h 11m2 stops
$475Air Canada
Find Deal
Wed, Dec 3 - Mon, Dec 8
Scandinavian Airlines Logo
1:15 pm - 3:25 pmDCA-HEL
19h 10m3 stops
Scandinavian Airlines Logo
6:15 am - 10:57 pmHEL-DCA
23h 42m2 stops
$479Scandinavian Airlines
Find Deal
Mon, Dec 8 - Sat, Dec 13
Air Canada Logo
6:00 am - 6:50 pmDCA-HEL
29h 50m2 stops
Air Canada Logo
12:45 pm - 3:31 pmHEL-DCA
33h 46m2 stops
$481Air Canada
Find Deal
Wed, Nov 12 - Wed, Nov 26
American Airlines Logo
10:35 am - 10:45 amDCA-HEL
17h 10m1 stop
American Airlines Logo
12:30 pm - 10:59 pmHEL-DCA
17h 29m1 stop
$482American Airlines
Find Deal
Wed, Feb 11 - Wed, Feb 18
American Airlines Logo
4:59 pm - 1:55 pmDCA-HEL
13h 56m2 stops
American Airlines Logo
4:50 pm - 10:35 pmHEL-DCA
12h 45m1 stop
$487American Airlines
Find Deal
Fri, Feb 6 - Sat, Feb 14
Delta Logo
3:00 pm - 4:25 pmDCA-HEL
18h 25m2 stops
Delta Logo
7:00 am - 5:26 pmHEL-DCA
17h 26m2 stops
$496Delta
Find Deal
Mon, Nov 3 - Tue, Nov 18
Delta Logo
8:40 pm - 5:25 pmDCA-HEL
14h 45m2 stops
Delta Logo
2:05 pm - 11:02 pmHEL-DCA
15h 57m2 stops
$502Delta
Find Deal
Thu, Oct 30 - Mon, Nov 3

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
Dec 8
DCA12:15 pmWashington, D.C. Reagan-National
15h 25m
2 stops
HEL10:40 amHelsinki-Vantaa
Dec 13
HEL6:15 amHelsinki-Vantaa
23h 42m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
$472
Find similar
Scandinavian Airlines
Dec 8
DCA1:15 pmWashington, D.C. Reagan-National
19h 10m
3 stops
HEL3:25 pmHelsinki-Vantaa
Dec 13
HEL6:15 amHelsinki-Vantaa
23h 42m
2 stops
DCA10:57 pmWashington, D.C. Reagan-National
$479
Find similar
Scandinavian Airlines
Feb 11
DCA11:00 amWashington, D.C. Reagan-National
16h 40m
2 stops
HEL10:40 amHelsinki-Vantaa
Feb 20
HEL6:15 amHelsinki-Vantaa
23h 53m
2 stops
DCA11:08 pmWashington, D.C. Reagan-National
$484
Find similar

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

Our best Air Canada deals on Washington, D.C. Reagan-National Airport to Helsinki flight tickets
Air Canada
Dec 3
DCA11:05 amWashington, D.C. Reagan-National
19h 05m
2 stops
HEL1:10 pmHelsinki-Vantaa
Dec 8
HEL12:45 pmHelsinki-Vantaa
16h 11m
2 stops
DCA9:56 pmWashington, D.C. Reagan-National
$475
Find similar
Air Canada
Nov 12
DCA6:00 amWashington, D.C. Reagan-National
29h 50m
2 stops
HEL6:50 pmHelsinki-Vantaa
Nov 26
HEL12:45 pmHelsinki-Vantaa
33h 46m
2 stops
DCA3:31 pmWashington, D.C. Reagan-National
$481
Find similar
Air Canada
Nov 12
DCA6:00 amWashington, D.C. Reagan-National
29h 50m
2 stops
HEL6:50 pmHelsinki-Vantaa
Nov 18
HEL7:05 amHelsinki-Vantaa
19h 40m
2 stops
DCA7:45 pmWashington, D.C. Reagan-National
$486
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 October 20, 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 12/3

4:10 pm-6:50 pm

2 stops19h 40m

Helsinki-Vantaa

Wed 12/10

12:45 pm-9:56 pm

2 stops16h 11m

$451

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Tue 12/2

11:05 am-1:10 pm

2 stops19h 05m

Helsinki-Vantaa

Mon 12/8

12:45 pm-9:56 pm

2 stops16h 11m

$466

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 12/8

12:15 pm-10:40 am

2 stops15h 25m

Helsinki-Vantaa

Sat 12/13

6:15 am-10:57 pm

2 stops23h 42m

$472

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 12/3

11:05 am-1:10 pm

2 stops19h 05m

Helsinki-Vantaa

Mon 12/8

12:45 pm-9:56 pm

2 stops16h 11m

$475

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 12/8

1:15 pm-3:25 pm

3 stops19h 10m

Helsinki-Vantaa

Sat 12/13

6:15 am-10:57 pm

2 stops23h 42m

$479

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 11/12

6:00 am-6:50 pm

2 stops29h 50m

Helsinki-Vantaa

Wed 11/26

12:45 pm-3:31 pm

2 stops33h 46m

$481

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 2/11

10:35 am-10:45 am

1 stop17h 10m

Helsinki-Vantaa

Wed 2/18

12:30 pm-10:59 pm

1 stop17h 29m

$482

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Fri 2/6

4:59 pm-1:55 pm

2 stops13h 56m

Helsinki-Vantaa

Sat 2/14

4:50 pm-10:35 pm

1 stop12h 45m

$487

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Mon 11/3

3:00 pm-4:25 pm

2 stops18h 25m

Helsinki-Vantaa

Tue 11/18

7:00 am-5:26 pm

2 stops17h 26m

$496

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Thu 10/30

8:40 pm-5:25 pm

2 stops14h 45m

Helsinki-Vantaa

Mon 11/3

2:05 pm-11:02 pm

2 stops15h 57m

$502

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 50m, 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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