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Dulles Intl

$348+ Cheap flights from Helsinki (HEL) to Dulles Intl (IAD)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/20. Fares are subject to change and may not be available on all flights or dates of travel.
HEL — IAD
May 3 — May 101
Sat 5/3
Sat 5/10
1 adult, Economy
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Cheapflights Tip: The best prices from Helsinki-Vantaa to Washington, D.C. Dulles Intl are usually found in March or September, booked 43 days in advance, depart on a Monday or Tuesday and return on a Monday

Cheap flight deals from Helsinki to Dulles Intl

Discover tips and strategies to find the most affordable flight options for your journey from Helsinki (HEL) to Dulles Intl (IAD). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 28, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$517
(Ticket)

One-way from

$348
(Mytrip)

Popular in

July

Cheapest in

March

Average price

$687
Provider with most accurate pricing for Helsinki-Vantaa-Washington, D.C. Dulles Intl flight deals.
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Provider most trusted by Cheapflights users for Helsinki-Vantaa-Washington, D.C. Dulles Intl flights.
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From Helsinki-Vantaa to Washington, D.C. Dulles Intl
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One-way flight from Helsinki-Vantaa to Washington, D.C. Dulles Intl
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Highest demand for flights based on searches. 16% potential increase in price ($138 potential increase over avg. RT price).
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Cheapest flight prices on average. 2% potential price decrease ($18 potential savings vs. average RT price).
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Average for round-trip flights in April 2025
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Find flight deals from Helsinki to Dulles Intl

Cheapest flights from Helsinki to Dulles Intl
Explore the most affordable flight options available from Helsinki to Dulles Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 28, 2025.

This Ticket deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/193:00 pmHEL - IAD
1 stop11h 20mIcelandair
Tue 6/38:30 pmIAD - HEL
1 stop10h 30mIcelandair
Deal found 4/28$517
This Ticket deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/196:25 pmHEL - IAD
1 stop28h 10mMultiple Airlines
Tue 6/36:30 pmIAD - HEL
1 stop21h 50mMultiple Airlines
Deal found 4/28$518
This KLM deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/111:55 pmHEL - IAD
1 stop32h 40mKLM
Sun 5/185:25 pmIAD - HEL
1 stop23h 55mKLM
Deal found 4/27$544
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/97:00 amHEL - IAD
2 stops19h 39mDelta
Sun 5/255:25 pmIAD - HEL
1 stop12h 35mDelta
Deal found 4/28$549
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/196:10 amHEL - IAD
1 stop16h 40mUnited Airlines
Mon 5/2612:35 pmIAD - HEL
2 stops16h 15mUnited Airlines
Deal found 4/28$552
This Travelocity deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelocity is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/187:40 pmHEL - IAD
2 stops24h 50mLufthansa
Sun 5/2510:20 pmIAD - HEL
1 stop18h 30mLufthansa
Deal found 4/27$584
This Austrian Airlines deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Austrian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/256:10 amHEL - IAD
2 stops39h 25mAustrian Airlines
Sun 6/15:25 pmIAD - HEL
2 stops36h 25mAustrian Airlines
Deal found 4/27$648
This AirNGo deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/96:40 amHEL - IAD
2 stops15h 55mAir France
Sun 5/259:20 pmIAD - HEL
2 stops13h 20mAir France
Deal found 4/28$721
This Scandinavian Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/197:15 amHEL - IAD
2 stops19h 44mScandinavian Airlines
Tue 6/310:05 pmIAD - HEL
2 stops18h 30mScandinavian Airlines
Deal found 4/28$1,003

Cheapflights Fare Finder

Customize your flight search to find flights from Helsinki to Dulles Intl that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 28, 2025.
Use the filters below to find and compare flights from Helsinki to Washington, D.C. Dulles Intl Airport that are best for you.

Fly from

Helsinki

Fly to

Dulles Intl

Route

Depart

Return

Price

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Mon 5/19

3:00 pm-7:20 pm

1 stop11h 20m

Washington, D.C. Dulles Intl

Tue 6/3

8:30 pm-2:00 pm

1 stop10h 30m

$517

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Mon 5/19

6:25 pm-3:35 pm

1 stop28h 10m

Washington, D.C. Dulles Intl

Tue 6/3

6:30 pm-11:20 pm

1 stop21h 50m

$518

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Sun 5/11

1:55 pm-3:35 pm

1 stop32h 40m

Washington, D.C. Dulles Intl

Sun 5/18

5:25 pm-12:20 am

1 stop23h 55m

$544

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Fri 5/9

7:00 am-7:39 pm

2 stops19h 39m

Washington, D.C. Dulles Intl

Sun 5/25

5:25 pm-1:00 pm

1 stop12h 35m

$549

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Mon 5/19

6:10 am-3:50 pm

1 stop16h 40m

Washington, D.C. Dulles Intl

Mon 5/26

12:35 pm-11:50 am

2 stops16h 15m

$552

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Sun 5/18

7:40 pm-1:30 pm

2 stops24h 50m

Washington, D.C. Dulles Intl

Sun 5/25

10:20 pm-11:50 pm

1 stop18h 30m

$584

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Sun 5/25

6:10 am-2:35 pm

2 stops39h 25m

Washington, D.C. Dulles Intl

Sun 6/1

5:25 pm-12:50 pm

2 stops36h 25m

$648

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Fri 5/9

6:40 am-3:35 pm

2 stops15h 55m

Washington, D.C. Dulles Intl

Sun 5/25

9:20 pm-5:40 pm

2 stops13h 20m

$721

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Mon 5/19

7:15 am-7:59 pm

2 stops19h 44m

Washington, D.C. Dulles Intl

Tue 6/3

10:05 pm-11:35 pm

2 stops18h 30m

$1,003

HelsinkiWashington, D.C.

HEL - IAD

HELIAD

Helsinki-Vantaa

Tue 5/20

3:40 pm-3:20 pm

2 stops30h 40m

$348

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 15 results
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Compare providers for flights from Helsinki to Dulles Intl

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Helsinki to Dulles Intl in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy-Trust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Helsinki-Washington, D.C. Dulles Intl Airport flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Helsinki-Washington, D.C. Dulles Intl Airport flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Helsinki-Washington, D.C. Dulles Intl Airport flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Helsinki-Washington, D.C. Dulles Intl Airport flights, Cheapflights users trust AranGrant the most. AranGrant has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Helsinki-Washington, D.C. Dulles Intl Airport flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Helsinki to Dulles Intl

Have a flexible travel schedule? Discover the best time to fly to Dulles Intl from Helsinki with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Helsinki to Washington, D.C. Dulles Intl Airport

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

Use this chart to determine the optimal time to book a round-trip flight from Helsinki to Dulles Intl. Price data was last updated on April 25, 2025.

The best time to book flights from Helsinki to Washington, D.C. Dulles Intl Airport is 43 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

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

Currently, August is the cheapest month in which you can book a flight from Helsinki to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Helsinki to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from HEL to IAD?

Find hourly flight availability from Helsinki to Dulles Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 28, 2025.

When flying from Helsinki to Washington, D.C. Dulles Intl Airport, the time of day you fly usually plays a role in the price. Save by searching for a flight at noon, which can drop the price by up to 22% versus a flight in the evening.

Rainfall in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Washington, D.C. Dulles Intl Airport ranges from 2.6 - 4.0 inches per month. May is typically the wettest month, when rainfall can reach 4.0 in. February is typically the driest time to visit Washington, D.C. Dulles Intl Airport when rainfall is around 2.6 in.

Temperature in Dulles Intl by month

Plan your trip to Dulles Intl by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Washington, D.C. Dulles Intl Airport, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 80.6 F. Travelers looking to avoid the cold should look outside of January, when temperatures are typically at their lowest (around 35.6 F).

Reviews of airlines servicing Dulles Intl

Get insights into the airlines that provide service to Dulles Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Dulles Intl. Reviews last updated April 28, 2025.
Read through reviews of airlines operating flights from Helsinki to Washington, D.C., such as Delta, KLM and Finnair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Delta
8.0
Very good
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
KLM
7.8
Good
1,333 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Finnair
7.6
Good
1,273 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception
Air France
7.4
Good
1,444 reviews
Delta
8.0
Very good
7,929 reviews

Comfort

7.9

Entertainment

7.9

Crew

8.5

Overall

8.0

Boarding

8.2

Food

7.3

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

TUS - LAX

Delta has consistently been the best U.S. airline for my travels and this flight was no exception

Related info for your journey

Find useful and relevant information for your journey from Helsinki to Dulles Intl. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • What airport do you fly from for flights from Helsinki to Washington, D.C. Dulles Intl?

    Helsinki-Vantaa (HEL) is the airport you will fly out of if you book a flight from Helsinki to Washington, D.C. Dulles Intl. You should not have trouble finding flights to Washington, D.C. Dulles Intl from Helsinki-Vantaa; the airport handles an average of 0 outbound flights to Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 1 airline has flights from the Helsinki airport to Washington, D.C. Dulles Intl. It is only a 10.6 mi journey to Helsinki-Vantaa (HEL) from Helsinki’s city center.

  • What are the cheapest airlines flying from Helsinki to Washington, D.C. Dulles Intl Airport round-trip?

    Currently priced at $517, Icelandair will fly you from Helsinki to Washington, D.C. Dulles Intl Airport and back. In addition to Icelandair, many other airlines offer competitively priced options for your trip. Search Cheapflights for deals from KLM and Delta - these airlines can fly you to your destination from $544 and $549, respectively. Users have found that Icelandair is 26% cheaper than the other options available to this destination.

  • What are the cheapest airlines to fly from Helsinki to Washington, D.C. Dulles Intl Airport one-way?

    $579 is the cheapest one-way deal found within the past few days, from Lufthansa. You may also be able to find cheap deals on Icelandair and British Airways, with prices starting from $594 and $682, respectively.

  • Can I find deals for flights from Helsinki to Dulles Intl that include hotel bookings?

    Yes. In addition to deals on Helsinki to Dulles Intl flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Helsinki to Dulles Intl?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Helsinki to Dulles Intl.

  • Can I find deals for business class flights from Helsinki to Dulles Intl?

    Yes. Cheapflights offers flight deals from Helsinki to Dulles Intl by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

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

    Currently, August is the cheapest month in which you can book a flight from Helsinki to Washington, D.C. Dulles Intl Airport (average of $309). Flying from Helsinki to Washington, D.C. Dulles Intl Airport in June is currently the most expensive (average of $373). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

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Alternative routes for Helsinki to Dulles Intl

See prices for flight routes from nearby airports that may be better suited for you.
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Top airline flying from Helsinki to Dulles Intl

Discover the top airline that operate flights from Helsinki to Dulles Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated April 28, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$382Average$801FlexibilityNo cancel feeOn-time76%

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