HEL - IAD

$341 Find Cheap Flights from Helsinki to Washington, D.C.

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helsinki to Dulles Intl departing on 3/6. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy, 0 bags

KAYAK searches hundreds of travel sites at once for deals on flights to Washington, D.C. Dulles Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to Washington, D.C., as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to Washington, D.C., as well as popular online travel agencies
Travelers love KAYAK
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Everything you should know

Cheapest round-trip
$485
Typical prices: $489-$646
Icelandair
Wed 2/11Sat 2/14
HEL - IAD • 1 stop
Cheapest one-way
$341
Typical prices: $698-$857
Multiple Airlines
Fri 3/6
HEL - IAD • 3 stops
Top airlines
Icelandair
Cheapest • from $485 (round-trip)
Scandinavian Airlines
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 22% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
November
Cheapest • 22% price drop
July
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Dulles Intl!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Helsinki to Dulles Intl (HEL-IAD)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helsinki to Dulles Intl that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Helsinki to Dulles Intl

Wed, Feb 11 - Sat, Feb 14
Icelandair Logo
1:55 pm - 6:30 pm
HEL
-
IAD
11h 35m
1 stop
Icelandair Logo
7:40 pm - 12:55 pm
IAD
-
HEL
10h 15m
1 stop
$485Icelandair
Thu, Feb 19 - Wed, Mar 4
Icelandair Logo
1:55 pm - 6:30 pm
HEL
-
IAD
11h 35m
1 stop
Icelandair Logo
7:40 pm - 12:55 pm
IAD
-
HEL
10h 15m
1 stop
$500Icelandair
Fri, Feb 20 - Sun, Mar 1
Icelandair Logo
1:55 pm - 6:30 pm
HEL
-
IAD
11h 35m
1 stop
Icelandair Logo
7:40 pm - 12:55 pm
IAD
-
HEL
10h 15m
1 stop
$510Icelandair
Thu, Feb 19 - Wed, Mar 4
Delta Logo
7:00 am - 4:05 pm
HEL
-
IAD
16h 05m
1 stop
Delta Logo
12:24 pm - 1:10 pm
IAD
-
HEL
17h 46m
2 stops
$546Delta
Thu, Feb 19 - Wed, Mar 4
Delta Logo
7:00 am - 4:05 pm
HEL
-
IAD
16h 05m
1 stop
Delta Logo
12:24 pm - 1:10 pm
IAD
-
HEL
17h 46m
2 stops
$548Delta
Thu, Feb 19 - Wed, Mar 4
Delta Logo
7:00 am - 4:28 pm
HEL
-
IAD
16h 28m
2 stops
Delta Logo
12:24 pm - 1:10 pm
IAD
-
HEL
17h 46m
2 stops
$551Delta
Thu, Feb 19 - Wed, Mar 4
Delta Logo
7:00 am - 4:28 pm
HEL
-
IAD
16h 28m
2 stops
Delta Logo
12:24 pm - 1:10 pm
IAD
-
HEL
17h 46m
2 stops
$554Delta
Sat, Mar 14 - Sat, Mar 21
KLM Logo
7:00 am - 5:05 pm
HEL
-
IAD
16h 05m
1 stop
KLM Logo
7:05 pm - 5:25 pm
IAD
-
HEL
16h 20m
1 stop
$593KLM
Wed, Feb 11 - Sat, Feb 14
Scandinavian Airlines Logo
11:20 am - 5:15 pm
HEL
-
IAD
12h 55m
1 stop
Scandinavian Airlines Logo
8:30 pm - 11:55 pm
IAD
-
HEL
20h 25m
2 stops
$628Scandinavian Airlines
Thu, Mar 12 - Wed, Mar 25
Delta Logo
7:00 am - 5:05 pm
HEL
-
IAD
16h 05m
1 stop
Delta Logo
1:19 pm - 1:10 pm
IAD
-
HEL
17h 51m
2 stops
$629Delta
Booking Insights

KAYAK's insights & trends for Helsinki to Dulles Intl flights

Get data-powered insights and trends into flights from Helsinki to Dulles Intl to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Helsinki to Washington, D.C. Dulles Intl Airport?

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Helsinki to Washington, D.C. Dulles Intl Airport departing in February.

What is the cheapest month to fly from Helsinki to Washington, D.C. Dulles Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Helsinki to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Helsinki to Washington, D.C. Dulles Intl Airport is November, where tickets cost $477 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $789 and $712 respectively.

How far in advance should I book a flight from Helsinki to Washington, D.C. Dulles Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Helsinki to Washington, D.C. Dulles Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Helsinki to Washington, D.C. Dulles Intl Airport, you should book around 4 weeks before departure, which saves you about 22% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 23 weeks before departure.

Find deals

Good to know

Low seasonMarch
Cheapest flight$341
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 17% increase in price.
Flight from Helsinki to Washington, D.C.

When to book flights from Helsinki to Dulles Intl

Are your dates flexible? Find out the best times to travel from Helsinki to Dulles Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Helsinki to Washington, D.C. flights

  • What is the cheapest flight from Helsinki to Washington, D.C. Dulles Intl Airport?

    In the last 3 days, the lowest price for a flight from Helsinki to Washington, D.C. Dulles Intl Airport was $341 for a one-way ticket and $485 for a round-trip.

  • Do I need a passport to fly between Helsinki and Washington, D.C.?

    A passport is required to fly from Helsinki to Washington, D.C..

  • Which aircraft models fly most regularly from Helsinki to Washington, D.C.?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Helsinki to Washington, D.C.?

    SkyTeam is the only airline alliance operating flights between Helsinki and Washington, D.C..

  • How does KAYAK find such low prices on flights from Helsinki to Washington, D.C.?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Helsinki to Washington, D.C..

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helsinki to Washington, D.C.?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Washington, D.C. from Helsinki is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Helsinki to Washington, D.C.?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Washington, D.C. with an airline and back to Helsinki with another airline. Booking your flights between Helsinki and IAD can sometimes prove cheaper using this method.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Helsinki to Washington, D.C.?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Washington, D.C. from Helsinki up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top airline flying from Helsinki to Dulles Intl

 
See real verified KAYAK customer reviews for airlines flying from Helsinki to Washington, D.C.. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Helsinki to Dulles Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.3
Scandinavian AirlinesOverall score based on 1674 reviews
7.6Boarding
6.6Entertainment
7.3Comfort
8.0Crew
6.7Food
Airline reviews

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

6.0 GoodAnonymous, Jan 2026
MSP - BOS
Read more Scandinavian Airlines reviews

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Since our earlier flight was delayed, we missed this flight and were rerouted on Lufthansa 2 days later.

Scandinavian Airlines is terrible. Flight was late. Lost luggage. Rude flight attendants. Terrible experience.

The flight was very cold, and the seats were rather uncomfortable. The food has been better on our other SAS experiences. Most significantly, the luggage with most of my wife's personal items and clothes didn't make the flight. Hoping for a quick resolution, but no real opportunity to speak with a Human has us concerned.

Ancient aircraft (busted armrests, poor cabin temperature with no option for passenger control). Garbage everywhere. Risible checking of safely conditions on landing. Also, late.

Feels like economy sits are getting smaller especially while eating food

I was surprised how good an American airline can be - I was really impressed.

Cut out the nickel and dime pricing for "seat selection" and baggage, To do this on an international flight is just mind boggling. Seriously, why treat customers this way??? Nobody wants these hidden extra fees and everybody hates them. Also plane was too warm and no air vent, and water dripped from the ceiling at one point,

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

It was so hot on the plane. No air jets above the seats

Everything you need to know for your flight from Helsinki to Dulles Intl

Information on your arrival and departure airports

Helsinki (HEL)
Dulles Intl (IAD)