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: 46% of momondo users choosing 1-stop flights on this route connected there.

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

Copenhagen (CPH) has the shortest average layover time for this route: 0h 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 15m on average. On the other hand, flying from Washington, D.C. to Helsinki takes 11h 02m 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, Lufthansa, and Scandinavian Airlines are the most popular carriers operating from Washington, D.C. to Helsinki-Vantaa

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, Lufthansa and Scandinavian Airlines 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 62% of people opting to fly with this airline when traveling to Helsinki. Keep in mind that there are 8 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 8 as of October 2025.

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.

$255 Cheap Flights from Washington, D.C. to Helsinki in 2025/26

Q: 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 $420 to $578. The lowest price recently found on this route was $352.

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Cheap round-trip flights

Enter your travel dates to find the best prices.

7:40 pm - 12:55 pmIAD-HEL

10h 15m1 stop

1:55 pm - 6:30 pmHEL-IAD

11h 35m1 stop

$352Icelandair

Find Deal

Sun, Nov 9 - Mon, Nov 24

7:40 pm - 12:55 pmIAD-HEL

10h 15m1 stop

1:55 pm - 6:30 pmHEL-IAD

11h 35m1 stop

$360Icelandair

Find Deal

Wed, Dec 3 - Tue, Dec 9

12:30 pm - 3:25 pmIAD-HEL

19h 55m2 stops

9:00 pm - 3:20 pmHEL-IAD

25h 20m1 stop

$416Scandinavian Airlines

Find Deal

Wed, Jan 14 - Sun, Jan 18

7:49 pm - 10:40 amIAD-HEL

31h 51m2 stops

6:15 am - 5:15 pmHEL-IAD

18h 00m1 stop

$435Scandinavian Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

10:55 pm - 6:50 pmIAD-HEL

12h 55m1 stop

6:55 am - 3:50 pmHEL-IAD

15h 55m1 stop

$437Lufthansa

Find Deal

Mon, Nov 24 - Sun, Dec 7

6:00 pm - 1:10 pmIAD-HEL

12h 10m1 stop

6:55 am - 3:50 pmHEL-IAD

15h 55m1 stop

$450Lufthansa

Find Deal

Tue, Dec 2 - Mon, Dec 8

6:20 pm - 3:15 pmIAD-HEL

13h 55m1 stop

12:30 pm - 10:59 pmHEL-IAD

17h 29m1 stop

$474American Airlines

Find Deal

Wed, Nov 26 - Wed, Dec 3

8:35 pm - 3:15 pmBWI-HEL

11h 40m1 stop

12:30 pm - 11:08 pmHEL-BWI

17h 38m1 stop

$474American Airlines

Find Deal

Wed, Jan 14 - Sun, Jan 18

12:40 pm - 12:00 pmIAD-HEL

16h 20m2 stops

6:55 am - 8:59 pmHEL-IAD

21h 04m2 stops

$485United Airlines

Find Deal

Tue, Jan 13 - Mon, Jan 19

9:00 am - 6:50 pmIAD-HEL

26h 50m2 stops

6:55 am - 3:50 pmHEL-IAD

15h 55m1 stop

$486United Airlines

Find Deal

Wed, Dec 3 - Wed, Dec 10

Lufthansa flights from Washington, D.C. to Helsinki

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

Lufthansa

Nov 24

IAD10:55 pmWashington, D.C. Dulles Intl

12h 55m

1 stop

HEL6:50 pmHelsinki-Vantaa

Dec 7

HEL6:55 amHelsinki-Vantaa

15h 55m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

$437

Find similar

Lufthansa

Dec 2

IAD6:00 pmWashington, D.C. Dulles Intl

12h 10m

1 stop

HEL1:10 pmHelsinki-Vantaa

Dec 8

HEL6:55 amHelsinki-Vantaa

15h 55m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

$450

Find similar

Lufthansa

Jan 13

IAD6:00 pmWashington, D.C. Dulles Intl

12h 10m

1 stop

HEL1:10 pmHelsinki-Vantaa

Jan 19

HEL6:55 amHelsinki-Vantaa

15h 55m

1 stop

IAD3:50 pmWashington, D.C. Dulles Intl

$471

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

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

American Airlines

Nov 26

IAD6:20 pmWashington, D.C. Dulles Intl

13h 55m

1 stop

HEL3:15 pmHelsinki-Vantaa

Dec 3

HEL12:30 pmHelsinki-Vantaa

17h 29m

1 stop

IAD10:59 pmWashington, D.C. Dulles Intl

$474

Find similar

American Airlines

Jan 9

BWI8:35 pmBaltimore/Washington

17h 35m

1 stop

HEL9:10 pmHelsinki-Vantaa

Jan 17

HEL12:30 pmHelsinki-Vantaa

18h 22m

2 stops

BWI11:52 pmBaltimore/Washington

$478

Find similar

American Airlines

Jan 1

IAD6:05 amWashington, D.C. Dulles Intl

21h 40m

1 stop

HEL10:45 amHelsinki-Vantaa

Jan 22

HEL12:30 pmHelsinki-Vantaa

15h 47m

1 stop

IAD9:17 pmWashington, D.C. Dulles Intl

$482

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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

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 11/9

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Mon 11/24

1:55 pm-6:30 pm

1 stop11h 35m

$352

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 12/3

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Tue 12/9

1:55 pm-6:30 pm

1 stop11h 35m

$360

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 1/14

12:30 pm-3:25 pm

2 stops19h 55m

Helsinki-Vantaa

Sun 1/18

9:00 pm-3:20 pm

1 stop25h 20m

$416

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 11/26

7:49 pm-10:40 am

2 stops31h 51m

Helsinki-Vantaa

Wed 12/3

6:15 am-5:15 pm

1 stop18h 00m

$435

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 11/24

10:55 pm-6:50 pm

1 stop12h 55m

Helsinki-Vantaa

Sun 12/7

6:55 am-3:50 pm

1 stop15h 55m

$437

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 12/2

6:00 pm-1:10 pm

1 stop12h 10m

Helsinki-Vantaa

Mon 12/8

6:55 am-3:50 pm

1 stop15h 55m

$450

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 11/26

6:20 pm-3:15 pm

1 stop13h 55m

Helsinki-Vantaa

Wed 12/3

12:30 pm-10:59 pm

1 stop17h 29m

$474

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Wed 1/14

8:35 pm-3:15 pm

1 stop11h 40m

Helsinki-Vantaa

Sun 1/18

12:30 pm-11:08 pm

1 stop17h 38m

$474

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 1/13

12:40 pm-12:00 pm

2 stops16h 20m

Helsinki-Vantaa

Mon 1/19

6:55 am-8:59 pm

2 stops21h 04m

$485

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 12/3

9:00 am-6:50 pm

2 stops26h 50m

Helsinki-Vantaa

Wed 12/10

6:55 am-3:50 pm

1 stop15h 55m

$486

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 February is, on average, the cheapest month to fly to Helsinki from Washington, D.C., with most prices found around $383. If you aren’t able to travel during the month of February, then book flights to Helsinki from Washington, D.C. during November instead. Flights to Helsinki in November, while not as cheap as those in February, still average around $425.

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. 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. 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.

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 $584 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 $479 on momondo.

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

As of October 2025, prices for Washington, D.C. to Helsinki flights are approximately 6% 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

Direct flights	None

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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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 15m 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 8 as of October 2025.
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 10%, American Airlines 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 7.0 560 reviews	Search Icelandair flights
Scandinavian Airlines	PriceFrom $423	Free Cancellation	Rating 7.4 1,535 reviews	Search Scandinavian Airlines flights
Lufthansa	PriceFrom $501	Free Cancellation	Rating 6.8 7,507 reviews	Search Lufthansa flights
United Airlines	PriceFrom $510	Free Cancellation	Rating 7.4 8,988 reviews	Search United Airlines flights
Delta	PriceFrom $527	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
KLM	PriceFrom $529	Free Cancellation	Rating 7.7 1,404 reviews	Search KLM flights
British Airways	PriceFrom $535	Free Cancellation	Rating 6.7 7,466 reviews	Search British Airways flights
American Airlines	PriceFrom $580	Free Cancellation	Rating 7.2 11,028 reviews	Search American Airlines flights

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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.

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Cheap flights from Washington, D.C. to Helsinki from $255

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. 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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Lufthansa flights from Washington, D.C. to Helsinki

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

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

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

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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

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?

What is the cheapest day to depart on your flight to Helsinki?

What is the cheapest time of day to depart on your flight to Helsinki?

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

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

As of October 2025, prices for Washington, D.C. to Helsinki flights are approximately 6% cheaper when compared to flights at the same time last year.

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

Icelandair, Lufthansa, and Scandinavian Airlines are the most popular carriers operating from Washington, D.C. to Helsinki-Vantaa

What airlines fly to Helsinki?

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

Reykjavik (KEF) was the most common stop: 46% 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 Paris (CDG) offer the lowest average round-trip price of $516.

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

Copenhagen (CPH) has the shortest average layover time for this route: 0h 50m.

How long does it take to fly to Helsinki?

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

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

Direct flights

How far is Washington, D.C. to Helsinki-Vantaa by plane?

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

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

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

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

What is the most popular airline from Washington, D.C. to Helsinki?

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

Traveling to a place near Helsinki?

Why use momondo?

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

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

How can momondo help me find flights 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?

An easier way to manage your Helsinki trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Finland

Airports servicing Finland