HEL - IAD

$347 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 5/20. 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

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
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Cheap Flights from Helsinki to Washington, D.C.

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helsinki to Washington, D.C. 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.

Recent round-trip flight deals from Helsinki to Dulles Intl

KAYAK's recommended round-trip deals from the most popular airlines that fly from Helsinki to Dulles Intl.
Discover the best prices for you by selecting your travel dates on KAYAK.
Icelandair Logo
3:00 pm - 7:20 pmHEL-IAD
11h 20m1 stop
Icelandair Logo
8:30 pm - 2:00 pmIAD-HEL
10h 30m1 stop
$517Icelandair
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Thu, May 22 - Wed, Jun 4
Logo
6:25 pm - 3:35 pmHEL-IAD
28h 10m1 stop
Logo
6:30 pm - 11:20 pmIAD-HEL
21h 50m1 stop
$519
Find Deal
Sun, May 11 - Mon, May 26
Logo
6:25 pm - 3:35 pmHEL-IAD
28h 10m1 stop
Logo
9:20 pm - 11:20 pmIAD-HEL
19h 00m1 stop
$521
Find Deal
Sun, May 11 - Sun, May 25
Icelandair Logo
3:00 pm - 7:20 pmHEL-IAD
11h 20m1 stop
Icelandair Logo
11:15 pm - 2:00 pmIAD-HEL
31h 45m1 stop
$525Icelandair
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Mon, May 19 - Sun, Jun 1
United Airlines Logo
6:10 am - 4:19 pmHEL-IAD
17h 09m2 stops
United Airlines Logo
3:40 pm - 6:55 pmIAD-HEL
20h 15m2 stops
$528United Airlines
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Tue, May 20 - Tue, May 27
Delta Logo
7:00 am - 7:39 pmHEL-IAD
19h 39m2 stops
Delta Logo
6:30 pm - 4:40 pmIAD-HEL
15h 10m1 stop
$544Delta
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Sun, May 11 - Mon, May 26
Delta Logo
7:00 am - 3:35 pmHEL-IAD
15h 35m1 stop
Delta Logo
5:25 pm - 1:00 pmIAD-HEL
12h 35m1 stop
$545Delta
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Sun, May 11 - Sat, May 24
United Airlines Logo
6:10 am - 3:50 pmHEL-IAD
16h 40m1 stop
United Airlines Logo
12:35 pm - 11:50 amIAD-HEL
16h 15m2 stops
$552United Airlines
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Mon, May 19 - Mon, May 26
Lufthansa Logo
7:40 pm - 3:20 pmHEL-IAD
26h 40m1 stop
Lufthansa Logo
10:20 pm - 11:50 pmIAD-HEL
18h 30m1 stop
$555Lufthansa
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Sun, Aug 10 - Sun, Aug 17
Lufthansa Logo
6:00 am - 1:30 pmHEL-IAD
14h 30m2 stops
Lufthansa Logo
10:20 pm - 11:50 pmIAD-HEL
18h 30m1 stop
$603Lufthansa
Find Deal
Mon, May 19 - Tue, Jun 3
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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.

What’s the cheapest day of the week to fly from Helsinki to Washington, D.C.?

The average price of all round-trip flights from Helsinki to Washington, D.C. Dulles Intl Airport clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Helsinki to Washington, D.C., look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Washington, D.C., Monday is the cheapest day to fly and Saturday is the most expensive.

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 March, where tickets cost $514 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $895 and $852 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. For the absolute cheapest price, our data suggests you should book 22 weeks before departure.

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Good to know

Low seasonMarch
High seasonMay
Cheapest flight$347
Best time to beat the crowds with an average 28% drop in price.
Most popular time to fly and prices are also 12% lower on average.
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 $347 for a one-way ticket and $517 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.?

    Star Alliance, SkyTeam, and oneworld are the airline alliances operating flights between Helsinki and Washington, D.C., with Star Alliance being the most commonly used for this route.

  • 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.

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.
7.0
IcelandairOverall score based on 487 reviews
7.0Comfort
7.1Boarding
7.1Entertainment
8.0Crew
6.3Food
Airline reviews

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

10.0 ExcellentCraig, Apr 2025MAN - KEF
Read more Icelandair reviews

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

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

Information on your arrival and departure airports

Dulles Intl (IAD)
Helsinki (HEL)

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