Which layover airport offers the lowest fares from Washington, D.C. to Helsinki?

Flights via Copenhagen (CPH) offer the lowest average round-trip price of $476.

What airlines fly to Helsinki?

Icelandair, Scandinavian Airlines and Lufthansa are the top three most popular airlines that fly to Helsinki from Washington, D.C. according to our data. Icelandair is the first choice among our users, with 59% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 4 different airlines that fly to Helsinki on a routine basis, so you have a few additional options to choose from.

Which layover airport has the shortest connection time from Washington, D.C. to Helsinki?

Reykjavik (KEF) has the shortest average layover time for this route: 1h 04m.

Which airport is the most popular layover for flights between Washington, D.C. and Helsinki?

Reykjavik (KEF) was the most common stop: 50% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest travel time from Washington, D.C. to Helsinki?

Flights connecting via Reykjavik (KEF) have the shortest average one-way travel time: 10h 23m.

How long does it take to fly to Helsinki?

Flight times vary depending on what airport in Washington, D.C. you fly out of and what airport in Helsinki you fly into. For example, flying from Baltimore to Helsinki takes 10h 30m on average. On the other hand, flying from Washington, D.C. to Helsinki takes 11h 59m on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

What is the cheapest airline that flies from Washington, D.C. to Helsinki-Vantaa?

Icelandair, United Airlines, and Air Canada are the most popular carriers operating from Washington, D.C. to Helsinki-Vantaa

When did momondo last update prices for flights from Washington, D.C. to Helsinki-Vantaa Airport?

Prices for flights from Washington, D.C. to Helsinki-Vantaa Airport refresh daily.

How many operators does momondo search for flights from Washington, D.C. to Helsinki-Vantaa Airport?

The number of operators available for flights from Washington, D.C. to Helsinki-Vantaa Airport is 4 as of April 2026.

How old do you have to be to fly from Washington, D.C. 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. to Helsinki-Vantaa Airport.

What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

The required travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helsinki-Vantaa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$245 Cheap Flights from Washington, D.C. to Helsinki in 2026

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Find the cheapest flights from Washington, D.C. to Helsinki

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:30 pm - 2:00 pm

BWI

HEL

10h 30m

1 stop

3:00 pm - 7:25 pm

HEL

BWI

11h 25m

1 stop

$519Icelandair

Tue, Apr 14 - Mon, Apr 27

8:30 pm - 2:00 pm

BWI

HEL

10h 30m

1 stop

3:00 pm - 7:25 pm

HEL

BWI

11h 25m

1 stop

$531Icelandair

Sat, Apr 25 - Thu, Apr 30

8:20 pm - 1:30 am

IAD

HEL

22h 10m

1 stop

9:05 pm - 5:00 pm

HEL

IAD

26h 55m

1 stop

$536Scandinavian Airlines

Sun, Apr 19 - Tue, May 5

8:30 pm - 2:00 pm

BWI

HEL

10h 30m

1 stop

3:00 pm - 7:25 pm

HEL

BWI

11h 25m

1 stop

$536Icelandair

Fri, Apr 17 - Thu, Apr 23

8:30 pm - 2:00 pm

IAD

HEL

10h 30m

1 stop

3:00 pm - 7:20 pm

HEL

IAD

11h 20m

1 stop

$537Icelandair

Wed, Apr 29 - Fri, May 8

8:20 pm - 11:50 pm

IAD

HEL

20h 30m

2 stops

9:05 pm - 5:00 pm

HEL

IAD

26h 55m

1 stop

$539Scandinavian Airlines

Sun, Apr 19 - Tue, May 5

8:30 pm - 2:00 pm

IAD

HEL

10h 30m

1 stop

3:00 pm - 7:20 pm

HEL

IAD

11h 20m

1 stop

$540Icelandair

Tue, Apr 28 - Tue, May 5

1:20 pm - 11:10 am

IAD

HEL

14h 50m

1 stop

12:05 pm - 11:35 am

HEL

IAD

30h 30m

1 stop

$564Turkish Airlines

Tue, Apr 14 - Tue, Apr 21

7:22 pm - 2:00 pm

DCA

HEL

11h 38m

1 stop

5:15 pm - 11:02 pm

HEL

DCA

12h 47m

1 stop

$730Finnair

Wed, Sep 16 - Wed, Sep 30

2:00 pm - 1:05 pm

DCA

HEL

16h 05m

2 stops

7:00 am - 6:32 pm

HEL

DCA

18h 32m

2 stops

$749Delta

Sun, Sep 27 - Tue, Oct 6

Delta flights from Washington, D.C. to Helsinki

Our best Delta deals on Washington, D.C. to Helsinki flight tickets

Delta

Sep 27

DCA2:00 pmWashington, D.C. Reagan-National

16h 05m

2 stops

HEL1:05 pmHelsinki-Vantaa

Oct 7

HEL7:00 amHelsinki-Vantaa

22h 54m

2 stops

DCA10:54 pmWashington, D.C. Reagan-National

$749

Delta

Apr 28

DCA5:34 pmWashington, D.C. Reagan-National

16h 06m

2 stops

HEL4:40 pmHelsinki-Vantaa

May 5

HEL7:15 amHelsinki-Vantaa

22h 26m

2 stops

DCA10:41 pmWashington, D.C. Reagan-National

$770

Delta

Sep 27

DCA2:00 pmWashington, D.C. Reagan-National

16h 05m

2 stops

HEL1:05 pmHelsinki-Vantaa

Oct 4

HEL7:00 amHelsinki-Vantaa

22h 59m

2 stops

DCA10:59 pmWashington, D.C. Reagan-National

$772

Turkish Airlines flights from Washington, D.C. to Helsinki

Our best Turkish Airlines deals on Washington, D.C. to Helsinki flight tickets

Turkish Airlines

Sep 7

IAD1:20 pmWashington, D.C. Dulles Intl

14h 50m

1 stop

HEL11:10 amHelsinki-Vantaa

Sep 24

HEL12:05 pmHelsinki-Vantaa

38h 45m

1 stop

IAD7:50 pmWashington, D.C. Dulles Intl

$573

Turkish Airlines

Aug 17

IAD1:20 pmWashington, D.C. Dulles Intl

22h 20m

1 stop

HEL6:40 pmHelsinki-Vantaa

Aug 31

HEL12:05 pmHelsinki-Vantaa

30h 30m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$613

Turkish Airlines

Aug 20

IAD1:20 pmWashington, D.C. Dulles Intl

14h 50m

1 stop

HEL11:10 amHelsinki-Vantaa

Sep 4

HEL7:35 pmHelsinki-Vantaa

23h 00m

1 stop

IAD11:35 amWashington, D.C. Dulles Intl

$616

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Tue 4/14

8:30 pm-2:00 pm

1 stop10h 30m

Helsinki-Vantaa

Mon 4/27

3:00 pm-7:25 pm

1 stop11h 25m

$519

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Sat 4/25

8:30 pm-2:00 pm

1 stop10h 30m

Helsinki-Vantaa

Thu 4/30

3:00 pm-7:25 pm

1 stop11h 25m

$531

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 4/19

8:20 pm-1:30 am

1 stop22h 10m

Helsinki-Vantaa

Tue 5/5

9:05 pm-5:00 pm

1 stop26h 55m

$536

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Fri 4/17

8:30 pm-2:00 pm

1 stop10h 30m

Helsinki-Vantaa

Thu 4/23

3:00 pm-7:25 pm

1 stop11h 25m

$536

Quickest round-trip

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 4/29

8:30 pm-2:00 pm

1 stop10h 30m

Helsinki-Vantaa

Fri 5/8

3:00 pm-7:20 pm

1 stop11h 20m

$537

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 4/19

8:20 pm-11:50 pm

2 stops20h 30m

Helsinki-Vantaa

Tue 5/5

9:05 pm-5:00 pm

1 stop26h 55m

$539

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 4/28

8:30 pm-2:00 pm

1 stop10h 30m

Helsinki-Vantaa

Tue 5/5

3:00 pm-7:20 pm

1 stop11h 20m

$540

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 4/14

1:20 pm-11:10 am

1 stop14h 50m

Helsinki-Vantaa

Tue 4/21

12:05 pm-11:35 am

1 stop30h 30m

$564

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 9/16

7:22 pm-2:00 pm

1 stop11h 38m

Helsinki-Vantaa

Wed 9/30

5:15 pm-11:02 pm

1 stop12h 47m

$730

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sun 9/27

2:00 pm-1:05 pm

2 stops16h 05m

Helsinki-Vantaa

Tue 10/6

7:00 am-6:32 pm

2 stops18h 32m

$749

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

How to get the cheapest flight ticket from Washington, D.C. 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

Prices

Airlines

Layovers

Other information

What is the typical price of a round-trip flight between Washington, D.C. and Helsinki?

What is the cheapest month to fly to Helsinki?

The month of January is, on average, the cheapest month to fly to Helsinki from Washington, D.C., with most prices found around $416. If you aren’t able to travel during the month of January, then book flights to Helsinki from Washington, D.C. during March instead. Flights to Helsinki in March, while not as cheap as those in January, still average around $474.

How far in advance should I book a flight to Helsinki?

You are more likely to see cheaper flights to Helsinki from Washington, D.C. when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $601 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Washington, D.C. for as low as $463 on momondo.

Can stopping save me money on Washington, D.C. to Helsinki flights?

You could potentially save up to 53% on your flight if you consider stops on a Washington, D.C. to Helsinki flight.

How have Washington, D.C. to Helsinki flight prices changed over time?

As of April 2026, prices for Washington, D.C. to Helsinki flights are approximately 28% more expensive when compared to flights at the same time last year.

When to book flights from Washington, D.C. to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from Washington, D.C. 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. to Helsinki (WAS to HEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Washington, D.C. to Helsinki

Fastest flight time	10h 30m
Direct flights	None

The fastest flight from Washington, D.C. to Helsinki takes 10h 30m

There are no direct flights from Washington, D.C. to Helsinki. There are no popular flight routes from Washington, D.C. to Helsinki.

Search flight deals

How far is Washington, D.C. to Helsinki-Vantaa by plane?
The straight-line distance from Washington, D.C. to Helsinki-Vantaa is 4303.0 mi. 10h 30m is a normal flight duration for this route.
When did momondo last update prices for flights from Washington, D.C. to Helsinki-Vantaa Airport?
Prices for flights from Washington, D.C. to Helsinki-Vantaa Airport refresh daily.
How many operators does momondo search for flights from Washington, D.C. to Helsinki-Vantaa Airport?
The number of operators available for flights from Washington, D.C. to Helsinki-Vantaa Airport is 4 as of April 2026.
How old do you have to be to fly from Washington, D.C. 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. to Helsinki-Vantaa Airport.
What documentation or ID do you need to fly to Helsinki-Vantaa Airport?
The required travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helsinki-Vantaa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.
What is the most popular airline from Washington, D.C. to Helsinki?
momondo data reveals that the most frequently booked airline on the route from Washington, D.C. to Helsinki is Icelandair, representing 49% of all bookings. The subsequent popular airlines are Scandinavian Airlines at 15%, United Airlines at 11%, and Lufthansa at 9%.

Best airlines flying from Washington, D.C. to Helsinki

Compare and see reviews for airlines that fly from Washington, D.C. to Helsinki with momondo

Airline	Rating	Free Cancellation	Price
Icelandair	PriceFrom $355	Free Cancellation	Rating 7.0 630 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $467	Free Cancellation	Rating 7.3 1,735 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $481	Free Cancellation	Rating 7.4 9,533 reviews	Search United Airlines flights
Lufthansa	PriceFrom $486	Free Cancellation	Rating 6.8 7,881 reviews	Search Lufthansa flights

Vantaa

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Lahti

Kotka

Why use momondo?

Why should I use momondo to find a flight deal from Washington, D.C. to Helsinki?

It is quick and easy to find Washington, D.C. to Helsinki flights on momondo. We search and return numerous flight options from various airlines and agents. You can then use our filters to narrow your search until you have found the most convenient flight to Helsinki that suits you.

Can I find flights from Washington, D.C. to Helsinki with flexible booking policies on momondo?

All flight searches from Washington, D.C. to Helsinki on momondo can be filtered to show those which offer flexible booking policies.

How can momondo help me find flights from Washington, D.C. to Helsinki?

momondo offers useful filters to help you find the right flight. Choose specific flight times, airports or even what payment method you prefer. We have numerous options to help you book your ideal flight from Washington, D.C. to Helsinki.

I’m not ready to book a flight from Washington, D.C. to Helsinki right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Washington, D.C. to Helsinki flights. All you need is a valid email address and we will do the rest; it is that quick and easy.