HEL - IAD

$453 Find Cheap Flights from Helsinki to Washington, D.C.

This is the cheapest round-trip flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helsinki to Dulles Intl departing on 4/28. 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
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$453
Typical prices: $533-$724
Multiple Airlines
Tue 4/28Tue 5/5
HEL - IAD • 1 stop
Cheapest one-way
$483
Typical prices: $730-$878
Multiple Airlines
Sun 4/19
HEL - IAD • 3 stops
Top airlines
Cheapest • from $458 (round-trip)
Best reviews • 7.3 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Helsinki and Dulles Intl. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Cheapest • Avg $503 (round-trip)
Shortest trip • 11h 20m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 32% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 23% price drop
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

Tue, Apr 28 - Tue, May 5
Multiple Airlines Logo
12:20 pm - 11:26 pm
HEL
-
IAD
18h 06m
1 stop
Multiple Airlines Logo
7:00 am - 10:45 am
IAD
-
HEL
20h 45m
1 stop
$453Multiple Airlines
Thu, Apr 16 - Fri, May 1
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
8:30 pm - 2:00 pm
IAD
-
HEL
10h 30m
1 stop
$458Icelandair
Thu, Apr 9 - Wed, Apr 22
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
8:30 pm - 2:00 pm
IAD
-
HEL
10h 30m
1 stop
$460Icelandair
Wed, Apr 8 - Wed, Apr 15
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
8:30 pm - 2:00 pm
IAD
-
HEL
10h 30m
1 stop
$462Icelandair
Thu, Apr 9 - Wed, Apr 22
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
8:30 pm - 2:00 pm
IAD
-
HEL
10h 30m
1 stop
$463Icelandair
Thu, Apr 23 - Mon, Apr 27
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
8:30 pm - 2:00 pm
IAD
-
HEL
10h 30m
1 stop
$464Icelandair
Mon, Apr 27 - Mon, May 4
Multiple Airlines Logo
12:35 pm - 11:26 pm
HEL
-
IAD
17h 51m
1 stop
Multiple Airlines Logo
5:00 pm - 3:25 pm
IAD
-
HEL
15h 25m
1 stop
$465Multiple Airlines
Thu, Apr 9 - Wed, Apr 22
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
8:30 pm - 2:00 pm
IAD
-
HEL
10h 30m
1 stop
$472Icelandair
Fri, May 8 - Sun, May 24
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
11:20 pm - 10:30 pm
IAD
-
HEL
16h 10m
1 stop
$478Icelandair
Sat, May 9 - Sun, May 24
Icelandair Logo
3:00 pm - 7:20 pm
HEL
-
IAD
11h 20m
1 stop
Icelandair Logo
11:20 pm - 10:30 pm
IAD
-
HEL
16h 10m
1 stop
$479Icelandair
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 April.

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 $475 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $772 and $716 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 3 weeks before departure, which saves you about 32% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

Good to know

Low seasonMarch
Cheapest flight$453
Best time to beat the crowds with an average 11% drop in price.
Most popular time to fly with an average 16% 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 $483 for a one-way ticket and $453 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 1715 reviews
7.3Comfort
7.6Boarding
6.7Entertainment
6.7Food
8.0Crew
Airline reviews

Excellent crew members, but my seat and food wasn’t the best

6.0 GoodAnonymous, Mar 2026
CPH - PRG
Read more Scandinavian Airlines reviews

Excellent crew members, but my seat and food wasn’t the best

All went smoothly. That's what I want on a long flight.

I expected more, but they will nickel and dime you for everything. I did not enjoy flying with this airline.

Curious and efficient service ! First time flying with SAS and very pleased!

I wish they have given us explanations for the delays. And the rebooking process in Copenhagen was too long. I had to wait about 4 hours before they assign me a hotel. From there the handling process (accommodation, transportation and meal) was excellent.

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.

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

Information on your arrival and departure airports