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

Flights via Reykjavik (KEF) offer the lowest average round-trip price of $555.

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

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

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.

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 15m 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 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 25m.

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 65% 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.

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 October 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.

$290 Cheap Flights from Washington, D.C. to Helsinki in 2026/27

Discover deals from 900+ travel sites with momondo.

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 - 11:50 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

20h 20m2 stops Kastrup Copenhagen Stockholm Arlanda

3:30 pm - 3:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

30h 45m2 stops Stockholm Arlanda Kastrup Copenhagen

$399Scandinavian Airlines

Thu, Jan 21 - Tue, Jan 26

8:30 pm - 11:50 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

20h 20m2 stops Kastrup Copenhagen Stockholm Arlanda

9:00 pm - 3:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

25h 15m2 stops Stockholm Arlanda Kastrup Copenhagen

$400Scandinavian Airlines

Thu, Jan 21 - Tue, Jan 26

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

$548Icelandair

Thu, Dec 3 - Mon, Dec 7

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

$624Icelandair

Mon, Nov 9 - Mon, Nov 23

12:06 pm - 1:35 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

30h 29m2 stops Atlanta Hartsfield-Jackson Kastrup Copenhagen

11:10 am - 6:51 amHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

26h 41m2 stops Kastrup Copenhagen Atlanta Hartsfield-Jackson

$633Multiple Airlines

Wed, Dec 9 - Wed, Dec 16

7:40 pm - 10:25 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

19h 45m2 stops Reykjavik Keflavik Intl Stockholm Arlanda

7:20 am - 6:30 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

18h 10m2 stops Stockholm Arlanda Reykjavik Keflavik Intl

$634Multiple Airlines

Mon, Nov 9 - Mon, Nov 23

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

18h 00m1 stop Munich Franz Josef Strauss

12:35 pm - 9:05 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

14h 30m1 stop Munich Franz Josef Strauss

$709United Airlines

Mon, Mar 15 - Tue, Mar 23

11:55 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 50m1 stop Munich Franz Josef Strauss

12:35 pm - 9:05 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

14h 30m1 stop Munich Franz Josef Strauss

$709United Airlines

Sun, Mar 14 - Wed, Mar 24

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

$710Lufthansa

Mon, Apr 19 - Mon, Apr 26

11:55 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 50m1 stop Munich Franz Josef Strauss

7:05 am - 4:55 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

15h 50m1 stop Frankfurt am Main

$713Lufthansa

Sun, Mar 14 - Fri, Mar 19

Cheap last minute flights

Enter your travel dates to find the best prices.

9:30 pm - 1:35 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

22h 05m1 stop Kastrup Copenhagen

6:15 am - 5:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

18h 00m1 stop Kastrup Copenhagen

$553Scandinavian Airlines

Mon, Oct 26 - Thu, Nov 12

9:30 pm - 3:25 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

11h 55m1 stop Kastrup Copenhagen

7:00 am - 5:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

17h 15m2 stops Stockholm Arlanda Kastrup Copenhagen

$560Scandinavian Airlines

Mon, Oct 26 - Thu, Nov 12

9:30 pm - 11:50 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

20h 20m2 stops Kastrup Copenhagen Stockholm Arlanda

7:00 am - 5:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

17h 15m2 stops Stockholm Arlanda Kastrup Copenhagen

$596Scandinavian Airlines

Mon, Oct 26 - Thu, Nov 12

2:30 pm - 11:20 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

14h 50m1 stop Istanbul

7:05 pm - 11:45 amHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

23h 40m1 stop Istanbul

$670Turkish Airlines

Sun, Oct 25 - Tue, Nov 10

10:20 pm - 11:20 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

31h 00m1 stop Istanbul

12:15 pm - 11:45 amHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

30h 30m1 stop Istanbul

$698Turkish Airlines

Sun, Oct 25 - Tue, Nov 10

8:40 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

$779Icelandair

Sun, Oct 25 - Tue, Nov 10

8:40 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

$815Icelandair

Wed, Oct 28 - Wed, Nov 4

11:55 pm - 6:45 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

12h 50m1 stop Munich Franz Josef Strauss

7:05 am - 8:05 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

20h 00m2 stops Frankfurt am Main Munich Franz Josef Strauss

$971Lufthansa

Sun, Oct 25 - Tue, Nov 10

6:06 pm - 6:45 pmDCA Washington, D.C. Reagan-National-HEL Helsinki-Vantaa

18h 39m2 stops Chicago O'Hare Intl Munich Franz Josef Strauss

12:35 pm - 10:24 amHEL Helsinki-Vantaa-DCA Washington, D.C. Reagan-National

28h 49m2 stops Munich Franz Josef Strauss Newark

$971United Airlines

Wed, Oct 28 - Tue, Nov 3

8:37 am - 11:50 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

21h 13m2 stops Newark Munich Franz Josef Strauss

12:35 pm - 8:05 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

14h 30m1 stop Munich Franz Josef Strauss

$1,005United Airlines

Tue, Oct 27 - Sun, Nov 1

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

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

Scandinavian Airlines

Jan 21

IAD8:30 pmWashington, D.C. Dulles Intl

20h 20m

2 stops

HEL11:50 pmHelsinki-Vantaa

Jan 26

HEL3:30 pmHelsinki-Vantaa

30h 45m

2 stops

IAD3:15 pmWashington, D.C. Dulles Intl

$399

Scandinavian Airlines

Jan 21

IAD8:30 pmWashington, D.C. Dulles Intl

20h 20m

2 stops

HEL11:50 pmHelsinki-Vantaa

Jan 26

HEL9:00 pmHelsinki-Vantaa

25h 15m

2 stops

IAD3:15 pmWashington, D.C. Dulles Intl

$400

Scandinavian Airlines

Feb 17

IAD8:30 pmWashington, D.C. Dulles Intl

31h 05m

2 stops

HEL10:35 amHelsinki-Vantaa

Mar 3

HEL3:30 pmHelsinki-Vantaa

32h 45m

2 stops

IAD5:15 pmWashington, D.C. Dulles Intl

$408

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

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

British Airways

Jan 18

BWI5:02 pmBaltimore/Washington

36h 18m

2 stops

HEL12:20 pmHelsinki-Vantaa

Jan 25

HEL7:35 pmHelsinki-Vantaa

28h 30m

1 stop

BWI5:05 pmBaltimore/Washington

$737

British Airways

Nov 18

DCA2:54 pmWashington, D.C. Reagan-National

14h 26m

2 stops

HEL12:20 pmHelsinki-Vantaa

Nov 25

HEL4:50 pmHelsinki-Vantaa

22h 29m

1 stop

DCA8:19 amWashington, D.C. Reagan-National

$841

British Airways

Nov 23

DCA2:58 pmWashington, D.C. Reagan-National

14h 22m

2 stops

HEL12:20 pmHelsinki-Vantaa

Dec 2

HEL4:50 pmHelsinki-Vantaa

22h 24m

1 stop

DCA8:14 amWashington, D.C. Reagan-National

$842

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

Thu 1/21

8:30 pm-11:50 pm

2 stops20h 20m

Helsinki-Vantaa

Tue 1/26

3:30 pm-3:15 pm

2 stops30h 45m

$399

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Thu 1/21

8:30 pm-11:50 pm

2 stops20h 20m

Helsinki-Vantaa

Tue 1/26

9:00 pm-3:15 pm

2 stops25h 15m

$400

Quickest round-trip

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Thu 12/3

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Mon 12/7

2:00 pm-6:30 pm

1 stop11h 30m

$548

BaltimoreHelsinki

BWI Baltimore/Washington - HEL Helsinki-Vantaa

BWIHEL

Baltimore/Washington

Mon 11/9

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Mon 11/23

2:00 pm-6:40 pm

1 stop11h 40m

$624

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Wed 12/9

12:06 pm-1:35 am

2 stops30h 29m

Helsinki-Vantaa

Wed 12/16

11:10 am-6:51 am

2 stops26h 41m

$633

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Mon 11/9

7:40 pm-10:25 pm

2 stops19h 45m

Helsinki-Vantaa

Mon 11/23

7:20 am-6:30 pm

2 stops18h 10m

$634

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Mon 3/15

6:45 pm-6:45 pm

1 stop18h 00m

Helsinki-Vantaa

Tue 3/23

12:35 pm-9:05 pm

1 stop14h 30m

$709

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Sun 3/14

11:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Wed 3/24

12:35 pm-9:05 pm

1 stop14h 30m

$709

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Mon 4/19

10:20 pm-6:55 pm

1 stop13h 35m

Helsinki-Vantaa

Mon 4/26

7:40 pm-7:25 pm

1 stop30h 45m

$710

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Sun 3/14

11:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Fri 3/19

7:05 am-4:55 pm

1 stop15h 50m

$713

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 $450 to $667.
The lowest price recently found on this route was $399.

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 $466. 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 $521.

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 $716 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 $575 on momondo.

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

You could potentially save up to 40% 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 October 2026, prices for Washington, D.C. to Helsinki flights are approximately 8% cheaper 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

Best Price Found	$290
Fastest flight time	10h 20m
Direct flights	None

The best one-way flight to Helsinki from Washington, D.C. in the past 72 hours is $290. The best round-trip flight deal from Washington, D.C. to Helsinki found on momondo in the last 72 hours is $399.

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.

Search flight deals

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 October 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 52% of all bookings. The subsequent popular airlines are Scandinavian Airlines at 24%, Lufthansa at 11%, and United Airlines at 5%.

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 $357	Free Cancellation	Rating 7.0 762 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $400	Free Cancellation	Rating 7.4 2,022 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $491	Free Cancellation	Rating 7.3 10,404 reviews	Search United Airlines flights
Lufthansa	PriceFrom $540	Free Cancellation	Rating 6.8 8,288 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.