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.

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.

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.

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.

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 11h 31m 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?

Lufthansa, 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.

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 September 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.

$323 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

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

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

$364Icelandair

Wed, Jan 13 - Mon, Jan 25

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

$364Icelandair

Wed, Jan 13 - Mon, Jan 18

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

16h 50m1 stop Kastrup Copenhagen

9:00 pm - 5:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

51h 15m2 stops Stockholm Arlanda Kastrup Copenhagen

$377Scandinavian Airlines

Wed, Nov 25 - Mon, Nov 30

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

22h 05m1 stop Kastrup Copenhagen

3:30 pm - 5:15 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

32h 45m2 stops Stockholm Arlanda Kastrup Copenhagen

$377Scandinavian Airlines

Wed, Oct 28 - Wed, Nov 11

2:54 pm - 12:20 pmDCA Washington, D.C. Reagan-National-HEL Helsinki-Vantaa

14h 26m2 stops New York John F Kennedy Intl London Heathrow

4:50 pm - 8:19 amHEL Helsinki-Vantaa-DCA Washington, D.C. Reagan-National

22h 29m1 stop New York John F Kennedy Intl

$535British Airways

Wed, Nov 18 - Wed, Nov 25

7:05 pm - 3:15 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

14h 10m1 stop London Heathrow

12:30 pm - 11:30 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

18h 00m1 stop Dallas/Fort Worth

$547Multiple Airlines

Mon, Oct 26 - Thu, Nov 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 - 8:05 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

14h 30m1 stop Munich Franz Josef Strauss

$633Lufthansa

Thu, Nov 26 - Tue, Dec 1

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

12h 50m1 stop 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

$633Lufthansa

Fri, Nov 27 - Wed, Dec 2

12:37 pm - 11:50 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

16h 13m2 stops Newark Munich Franz Josef Strauss

12:35 pm - 12:14 amHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

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

$652United Airlines

Thu, Nov 26 - Wed, Dec 2

6:00 am - 11:50 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

22h 50m2 stops Newark Munich Franz Josef Strauss

12:35 pm - 2:10 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

32h 35m2 stops Munich Franz Josef Strauss Vienna Intl

$668United Airlines

Fri, Feb 26 - Mon, Mar 1

Cheap last minute flights

Enter your travel dates to find the best prices.

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

17h 05m1 stop Kastrup Copenhagen

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

26h 55m1 stop Kastrup Copenhagen

$479Scandinavian Airlines

Wed, Sep 16 - Wed, Sep 23

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

12h 00m1 stop Kastrup Copenhagen

9:15 pm - 5:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

26h 45m2 stops Stockholm Arlanda Kastrup Copenhagen

$479Scandinavian Airlines

Wed, Sep 16 - Wed, Sep 23

8:20 pm - 8:35 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

17h 15m2 stops Kastrup Copenhagen Stockholm Arlanda

9:15 pm - 5:00 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

26h 45m2 stops Stockholm Arlanda Kastrup Copenhagen

$526Scandinavian Airlines

Wed, Sep 16 - Wed, Sep 23

10:20 pm - 1:35 amIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

20h 15m1 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

$903Lufthansa

Tue, Sep 15 - Mon, Sep 21

5:15 pm - 4:40 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

16h 25m2 stops Detroit Metropolitan Wayne County Paris Charles de Gaulle

7:00 am - 5:11 pmHEL Helsinki-Vantaa-IAD Washington, D.C. Dulles Intl

17h 11m2 stops Amsterdam Schiphol Atlanta Hartsfield-Jackson

$913Delta

Sun, Sep 13 - Wed, Sep 23

6:19 pm - 2:15 pmDCA Washington, D.C. Reagan-National-HEL Helsinki-Vantaa

12h 56m1 stop Chicago O'Hare Intl

5:15 pm - 11:10 pmHEL Helsinki-Vantaa-DCA Washington, D.C. Reagan-National

12h 55m1 stop New York John F Kennedy Intl

$951American Airlines

Tue, Sep 15 - Mon, Sep 21

5:15 pm - 4:40 pmIAD Washington, D.C. Dulles Intl-HEL Helsinki-Vantaa

16h 25m2 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

$954Delta

Tue, Sep 15 - Mon, Sep 21

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

10h 30m1 stop Reykjavik Keflavik Intl

11:40 am - 7:25 pmHEL Helsinki-Vantaa-BWI Baltimore/Washington

38h 45m2 stops Oslo Gardermoen Reykjavik Keflavik Intl

$1,263Icelandair

Mon, Sep 14 - Wed, Sep 16

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

10h 30m1 stop Reykjavik Keflavik Intl

3:00 pm - 7:25 pmHEL Helsinki-Vantaa-BWI Baltimore/Washington

11h 25m1 stop Reykjavik Keflavik Intl

$1,314Icelandair

Mon, Sep 14 - Wed, Sep 16

2:20 pm - 2:00 pmDCA Washington, D.C. Reagan-National-HEL Helsinki-Vantaa

16h 40m2 stops Boston Logan Intl Reykjavik Keflavik Intl

3:00 pm - 7:46 amHEL Helsinki-Vantaa-DCA Washington, D.C. Reagan-National

23h 46m2 stops Reykjavik Keflavik Intl Boston Logan Intl

$6,452Icelandair

Wed, Sep 16 - Wed, Sep 23

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Finnair flights from Washington, D.C. to Helsinki

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

Finnair

Oct 12

DCA5:57 pmWashington, D.C. Reagan-National

13h 03m

1 stop

HEL2:00 pmHelsinki-Vantaa

Oct 28

HEL12:30 pmHelsinki-Vantaa

16h 25m

1 stop

DCA10:55 pmWashington, D.C. Reagan-National

$719

Finnair

Sep 14

DCA8:40 amWashington, D.C. Reagan-National

22h 20m

2 stops

HEL2:00 pmHelsinki-Vantaa

Sep 16

HEL5:15 pmHelsinki-Vantaa

12h 55m

1 stop

DCA11:10 pmWashington, D.C. Reagan-National

$1,398

Finnair

Sep 16

DCA6:23 pmWashington, D.C. Reagan-National

12h 37m

1 stop

HEL2:00 pmHelsinki-Vantaa

Sep 23

HEL12:20 pmHelsinki-Vantaa

16h 00m

1 stop

DCA9:20 pmWashington, D.C. Reagan-National

$8,158

Icelandair flights from Washington, D.C. to Helsinki

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

Icelandair

Jan 13

BWI7:40 pmBaltimore/Washington

10h 20m

1 stop

HEL1:00 pmHelsinki-Vantaa

Jan 18

HEL2:00 pmHelsinki-Vantaa

11h 40m

1 stop

BWI6:40 pmBaltimore/Washington

$364

Icelandair

Jan 13

IAD7:40 pmWashington, D.C. Dulles Intl

10h 20m

1 stop

HEL1:00 pmHelsinki-Vantaa

Jan 18

HEL2:00 pmHelsinki-Vantaa

11h 30m

1 stop

IAD6:30 pmWashington, D.C. Dulles Intl

$366

Icelandair

Jan 13

BWI7:40 pmBaltimore/Washington

10h 20m

1 stop

HEL1:00 pmHelsinki-Vantaa

Jan 18

HEL2:00 pmHelsinki-Vantaa

11h 40m

1 stop

BWI6:40 pmBaltimore/Washington

$367

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

Quickest round-trip

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Wed 1/13

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Mon 1/25

2:00 pm-6:30 pm

1 stop11h 30m

$364

BaltimoreHelsinki

BWI Baltimore/Washington - HEL Helsinki-Vantaa

BWIHEL

Baltimore/Washington

Wed 1/13

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Mon 1/18

2:00 pm-6:40 pm

1 stop11h 40m

$364

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Wed 11/25

8:30 pm-8:20 pm

1 stop16h 50m

Helsinki-Vantaa

Mon 11/30

9:00 pm-5:15 pm

2 stops51h 15m

$377

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Wed 10/28

9:30 pm-1:35 am

1 stop22h 05m

Helsinki-Vantaa

Wed 11/11

3:30 pm-5:15 pm

2 stops32h 45m

$377

Washington, D.C.Helsinki

DCA Washington, D.C. Reagan-National - HEL Helsinki-Vantaa

DCAHEL

Washington, D.C. Reagan-National

Wed 11/18

2:54 pm-12:20 pm

2 stops14h 26m

Helsinki-Vantaa

Wed 11/25

4:50 pm-8:19 am

1 stop22h 29m

$535

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Mon 10/26

7:05 pm-3:15 pm

1 stop14h 10m

Helsinki-Vantaa

Thu 11/12

12:30 pm-11:30 pm

1 stop18h 00m

$547

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Thu 11/26

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Tue 12/1

12:35 pm-8:05 pm

1 stop14h 30m

$633

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Fri 11/27

10:55 pm-6:45 pm

1 stop12h 50m

Helsinki-Vantaa

Wed 12/2

12:35 pm-8:05 pm

1 stop14h 30m

$633

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Thu 11/26

12:37 pm-11:50 am

2 stops16h 13m

Helsinki-Vantaa

Wed 12/2

12:35 pm-12:14 am

2 stops18h 39m

$652

Washington, D.C.Helsinki

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

IADHEL

Washington, D.C. Dulles Intl

Fri 2/26

6:00 am-11:50 am

2 stops22h 50m

Helsinki-Vantaa

Mon 3/1

12:35 pm-2:10 pm

2 stops32h 35m

$668

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 $504 to $729.
The lowest price recently found on this route was $364.

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 $500. 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 $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 $710 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 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 September 2026, prices for Washington, D.C. to Helsinki flights are approximately 9% 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

Best Price Found	$323
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 $323. The best round-trip flight deal from Washington, D.C. to Helsinki found on momondo in the last 72 hours is $364.

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 September 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 47% of all bookings. The subsequent popular airlines are Scandinavian Airlines at 20%, Lufthansa at 9%, and United Airlines 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 6.9 741 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $400	Free Cancellation	Rating 7.4 1,984 reviews	Search Scandinavian Airlines flights
United Airlines	PriceFrom $491	Free Cancellation	Rating 7.4 10,197 reviews	Search United Airlines flights
Lufthansa	PriceFrom $493	Free Cancellation	Rating 6.8 8,214 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.