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 24m.

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

Flights via Paris (CDG) offer the lowest average round-trip price of $516.

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 20m on average. On the other hand, flying from Washington, D.C. to Helsinki takes 12h 01m 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.

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

Reykjavik (KEF) was the most common stop: 52% of momondo users choosing 1-stop flights on this route connected there.

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 61% 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?

Frankfurt am Main (FRA) has the shortest average layover time for this route: 1h 50m.

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

Icelandair, Austrian Airlines, and United Airlines 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 August 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.

$309 Cheap Flights from Washington, D.C. to Helsinki in 2026

Discover deals from 900+ travel sites with momondo.

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

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One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:20 pm - 3:20 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 00m1 stop Kastrup Copenhagen

9:05 pm - 5:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

26h 55m1 stop Kastrup Copenhagen

$349Scandinavian Airlines

Mon, Sep 7 - Wed, Sep 23

8:20 pm - 1:30 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

22h 10m1 stop Kastrup Copenhagen

9:05 pm - 5:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

26h 55m1 stop Kastrup Copenhagen

$353Scandinavian Airlines

Mon, Sep 7 - Wed, Sep 23

7:40 pm - 1:00 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

10h 20m1 stop Reykjavik Keflavik Intl

2:00 pm - 6:30 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

11h 30m1 stop Reykjavik Keflavik Intl

$458Icelandair

Wed, Nov 4 - Tue, Nov 10

7:40 pm - 1:00 pmBWI Baltimore/Washington-HEL Helsinki-Vantaa

10h 20m1 stop Reykjavik Keflavik Intl

2:00 pm - 6:40 pmHEL Helsinki-Vantaa-BWI Baltimore/Washington

11h 40m1 stop Reykjavik Keflavik Intl

$458Icelandair

Wed, Nov 4 - Tue, Nov 10

8:30 pm - 10:25 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

18h 55m2 stops Kastrup Copenhagen Stockholm Arlanda

5:30 am - 5:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

18h 45m3 stops Riga Intl Stockholm Arlanda Kastrup Copenhagen

$561Multiple Airlines

Wed, Nov 18 - Wed, Nov 25

8:30 pm - 10:25 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

18h 55m2 stops Kastrup Copenhagen Stockholm Arlanda

5:30 am - 5:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

18h 45m3 stops Riga Intl Stockholm Arlanda Kastrup Copenhagen

$562Multiple Airlines

Wed, Nov 18 - Wed, Nov 25

10:55 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 50m1 stop Munich Franz Josef Strauss

7:00 am - 3:55 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

15h 55m1 stop Frankfurt am Main

$682Lufthansa

Tue, Nov 24 - Tue, Dec 1

10:55 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 50m1 stop Munich Franz Josef Strauss

7:00 am - 3:55 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

15h 55m1 stop Frankfurt am Main

$709Lufthansa

Mon, Dec 28 - Tue, Jan 19

10:55 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 50m1 stop Munich Franz Josef Strauss

12:35 pm - 11:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

17h 25m2 stops Munich Franz Josef Strauss Newark

$715United Airlines

Sun, Dec 27 - Tue, Jan 12

10:55 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 50m1 stop Munich Franz Josef Strauss

12:35 pm - 11:25 amHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

29h 50m2 stops Munich Franz Josef Strauss Boston Logan Intl

$715United Airlines

Sun, Dec 27 - Wed, Jan 13

Cheap last minute flights

Enter your travel dates to find the best prices.

8:30 pm - 2:00 pmBWI Baltimore/Washington-HEL Helsinki-Vantaa

10h 30m1 stop Reykjavik Keflavik Intl

3:00 pm - 10:15 pmHEL Helsinki-Vantaa-BWI Baltimore/Washington

14h 15m1 stop Reykjavik Keflavik Intl

$683Icelandair

Thu, Aug 20 - Thu, Aug 27

8:30 pm - 2:00 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

10h 30m1 stop Reykjavik Keflavik Intl

3:00 pm - 7:20 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

11h 20m1 stop Reykjavik Keflavik Intl

$721Icelandair

Thu, Aug 20 - Thu, Aug 27

8:20 pm - 8:25 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

17h 05m1 stop Kastrup Copenhagen

6:10 am - 5:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

17h 50m1 stop Kastrup Copenhagen

$730Scandinavian Airlines

Wed, Aug 19 - Mon, Aug 24

8:20 pm - 3:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 25m2 stops Kastrup Copenhagen Stockholm Arlanda

6:10 am - 5:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

17h 50m1 stop Kastrup Copenhagen

$737Scandinavian Airlines

Wed, Aug 19 - Mon, Aug 24

8:30 pm - 2:00 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

10h 30m1 stop Reykjavik Keflavik Intl

3:00 pm - 7:20 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

11h 20m1 stop Reykjavik Keflavik Intl

$771Icelandair

Fri, Aug 21 - Thu, Aug 27

8:20 pm - 1:30 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

22h 10m1 stop Kastrup Copenhagen

11:55 am - 5:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

36h 05m2 stops Stockholm Arlanda Kastrup Copenhagen

$790Scandinavian Airlines

Wed, Aug 19 - Sun, Aug 23

5:25 pm - 4:40 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

16h 15m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

7:00 am - 3:35 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

15h 35m1 stop Amsterdam Schiphol

$962Delta

Tue, Aug 18 - Tue, Aug 25

3:25 pm - 1:10 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

14h 45m1 stop Frankfurt am Main

7:05 am - 4:05 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

16h 00m1 stop Frankfurt am Main

$964Lufthansa

Tue, Aug 18 - Tue, Aug 25

5:00 pm - 4:40 pmDCA Washington, D.C. Reagan-National-HEL Helsinki-Vantaa

16h 40m2 stops Boston Logan Intl Paris Charles de Gaulle

7:00 am - 4:59 pmHEL Helsinki-Vantaa-DCA Washington, D.C. Reagan-National

16h 59m2 stops Amsterdam Schiphol New York John F Kennedy Intl

$972Delta

Tue, Aug 18 - Tue, Aug 25

10:20 pm - 6:55 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

13h 35m1 stop Munich Franz Josef Strauss

7:40 pm - 7:25 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

30h 45m1 stop Munich Franz Josef Strauss

$1,016Lufthansa

Wed, Aug 19 - Sun, Aug 23

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Finnair flights from Washington, D.C. to Helsinki

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

Finnair

Nov 24

DCA11:55 amWashington, D.C. Reagan-National

16h 15m

1 stop

HEL11:10 amHelsinki-Vantaa

Dec 1

HEL12:30 pmHelsinki-Vantaa

15h 44m

1 stop

DCA9:14 pmWashington, D.C. Reagan-National

$683

Finnair

Oct 14

DCA6:33 pmWashington, D.C. Reagan-National

12h 42m

1 stop

HEL2:15 pmHelsinki-Vantaa

Oct 21

HEL4:25 pmHelsinki-Vantaa

14h 34m

1 stop

DCA11:59 pmWashington, D.C. Reagan-National

$736

Finnair

Nov 4

DCA5:12 pmWashington, D.C. Reagan-National

13h 43m

1 stop

HEL1:55 pmHelsinki-Vantaa

Nov 10

HEL12:30 pmHelsinki-Vantaa

15h 44m

1 stop

DCA9:14 pmWashington, D.C. Reagan-National

$743

British Airways flights from Washington, D.C. to Helsinki

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

British Airways

Nov 18

DCA2:56 pmWashington, D.C. Reagan-National

14h 24m

2 stops

HEL12:20 pmHelsinki-Vantaa

Nov 25

HEL4:50 pmHelsinki-Vantaa

24h 27m

1 stop

DCA10:17 amWashington, D.C. Reagan-National

$701

British Airways

Nov 4

DCA2:56 pmWashington, D.C. Reagan-National

14h 24m

2 stops

HEL12:20 pmHelsinki-Vantaa

Nov 10

HEL4:50 pmHelsinki-Vantaa

22h 14m

1 stop

DCA8:04 amWashington, D.C. Reagan-National

$756

British Airways

Nov 24

DCA2:56 pmWashington, D.C. Reagan-National

14h 24m

2 stops

HEL12:20 pmHelsinki-Vantaa

Dec 1

HEL4:50 pmHelsinki-Vantaa

24h 12m

1 stop

DCA10:02 amWashington, D.C. Reagan-National

$762

momondo Fare Finder

Use the filters below to find and compare flights from Washington, D.C. to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Mon 9/7

8:20 pm-3:20 pm

1 stop12h 00m

Helsinki-Vantaa

Wed 9/23

9:05 pm-5:00 pm

1 stop26h 55m

$349

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Mon 9/7

8:20 pm-1:30 am

1 stop22h 10m

Helsinki-Vantaa

Wed 9/23

9:05 pm-5:00 pm

1 stop26h 55m

$353

Quickest round-trip

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Wed 11/4

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Tue 11/10

2:00 pm-6:30 pm

1 stop11h 30m

$458

BaltimoreHelsinki

BWI Baltimore/Washington - HEL Helsinki-Vantaa

BWIHEL

Baltimore/Washington

Wed 11/4

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Tue 11/10

2:00 pm-6:40 pm

1 stop11h 40m

$458

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Wed 11/18

8:30 pm-10:25 pm

2 stops18h 55m

Helsinki-Vantaa

Wed 11/25

5:30 am-5:15 pm

3 stops18h 45m

$561

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Wed 11/18

8:30 pm-10:25 pm

2 stops18h 55m

Helsinki-Vantaa

Wed 11/25

5:30 am-5:15 pm

3 stops18h 45m

$562

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Tue 11/24

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Tue 12/1

7:00 am-3:55 pm

1 stop15h 55m

$682

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Mon 12/28

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Tue 1/19

7:00 am-3:55 pm

1 stop15h 55m

$709

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Sun 12/27

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Tue 1/12

12:35 pm-11:00 pm

2 stops17h 25m

$715

Washington, D.C.Helsinki

IAD Washington, D.C. Dulles Intl - HEL Helsinki-Vantaa

IADHEL

Washington, D.C. Dulles Intl

Sun 12/27

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Wed 1/13

12:35 pm-11:25 am

2 stops29h 50m

$715

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?

Prices are currently low for flights on this route.

Typical prices usually range from $627 to $788.
The lowest price recently found on this route was $349.

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 $499. If you aren’t able to travel during the month of January, then book flights to Helsinki from Washington, D.C. during October instead. Flights to Helsinki in October, while not as cheap as those in January, still average around $502.

How far in advance should I book a flight from Washington, D.C. 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 $687 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 $430 on momondo.

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

You could potentially save up to 54% 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 August 2026, prices for Washington, D.C. to Helsinki flights are approximately 21% 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 20m
Direct flights	None

The fastest flight from Washington, D.C. to Helsinki takes 10h 20m

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

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Frequently asked questions about flying from Washington, D.C. to Helsinki

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 20m 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 August 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 51% of all bookings. The subsequent popular airlines are Scandinavian Airlines at 17%, 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 6.9 731 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $404	Free Cancellation	Rating 7.4 1,952 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $462	Free Cancellation	Rating 7.4 10,105 reviews	Search United Airlines flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 8,195 reviews	Search Lufthansa flights

Vantaa

Espoo

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.