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$393+ Cheap flights from Dulles Intl (IAD) to Helsinki (HEL)

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 6/2. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HEL
Apr 9 — Apr 161
Wed 4/9
Wed 4/16
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. Dulles Intl to Helsinki-Vantaa are usually found in January or October, booked 73 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap flight deals from Dulles Intl to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Dulles Intl (IAD) to Helsinki (HEL). 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 4, 2025.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$482
(oojo)

One-way from

$393
(oojo)

Popular in

June

Cheapest in

January

Average price

$640
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Helsinki-Vantaa flight deals.
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Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Helsinki-Vantaa flights.
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From Washington, D.C. Dulles Intl to Helsinki-Vantaa
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One-way flight from Washington, D.C. Dulles Intl to Helsinki-Vantaa
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Highest demand for flights based on searches. 25% potential increase in price ($217 potential increase over avg. RT price).
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Cheapest flight prices on average. 6% potential price decrease ($41 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 Dulles Intl to Helsinki

Cheapest flights from Dulles Intl to Helsinki
Explore the most affordable flight options available from Dulles Intl to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 4, 2025.

This oojo deal was found by Cheapflights users on 4/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/148:30 pmIAD - HEL
1 stop10h 30mIcelandair
Fri 5/303:00 pmHEL - IAD
1 stop11h 20mIcelandair
Deal found 4/4$482
This Delta deal was found by Cheapflights users on 4/4. 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.
Wed 4/239:20 pmIAD - HEL
1 stop12h 20mDelta
Tue 4/297:15 amHEL - IAD
2 stops19h 38mDelta
Deal found 4/4$510
This American Airlines deal was found by Cheapflights users on 4/3. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/55:07 pmIAD - HEL
1 stop14h 53mAmerican Airlines
Tue 5/1312:35 pmHEL - IAD
1 stop17h 22mAmerican Airlines
Deal found 4/3$520
This Ticket deal was found by Cheapflights users on 4/2. 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.
Fri 4/49:20 pmIAD - HEL
1 stop19h 00mMultiple Airlines
Sun 4/131:55 pmHEL - IAD
1 stop32h 40mMultiple Airlines
Deal found 4/2$524
This United deal was found by Cheapflights users on 4/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/265:40 pmIAD - HEL
1 stop11h 20mUnited Airlines
Fri 12/56:50 amHEL - IAD
2 stops23h 10mUnited Airlines
Deal found 4/4$530
This Air France deal was found by Cheapflights users on 4/3. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/215:25 pmIAD - HEL
1 stop12h 35mAir France
Sun 4/277:00 amHEL - IAD
1 stop15h 35mAir France
Deal found 4/3$543
This oojo deal was found by Cheapflights users on 4/4. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/510:05 pmIAD - HEL
2 stops15h 20mScandinavian Airlines
Tue 5/139:05 pmHEL - IAD
2 stops29h 54mScandinavian Airlines
Deal found 4/4$549
This Lufthansa deal was found by Cheapflights users on 4/3. 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 Lufthansa is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2310:20 pmIAD - HEL
1 stop18h 05mLufthansa
Sat 11/297:25 pmHEL - IAD
1 stop31h 40mLufthansa
Deal found 4/3$577
This British Airways deal was found by Cheapflights users on 4/3. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/317:25 pmIAD - HEL
1 stop12h 50mBritish Airways
Sat 9/132:05 pmHEL - IAD
1 stop13h 10mBritish Airways
Deal found 4/3$580
This Austrian Airlines deal was found by Cheapflights users on 4/2. 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.
Fri 4/45:25 pmIAD - HEL
2 stops18h 30mAustrian Airlines
Sun 4/136:00 amHEL - IAD
2 stops39h 35mAustrian Airlines
Deal found 4/2$665
This KLM deal was found by Cheapflights users on 4/3. 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.
Fri 6/205:25 pmIAD - HEL
1 stop17h 15mKLM
Fri 7/117:00 amHEL - IAD
1 stop15h 35mKLM
Deal found 4/3$791
This Brussels Airlines deal was found by Cheapflights users on 4/3. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/95:35 pmIAD - HEL
2 stops16h 05mBrussels Airlines
Thu 7/175:40 pmHEL - IAD
2 stops26h 50mBrussels Airlines
Deal found 4/3$811

Cheapflights Fare Finder

Customize your flight search to find flights from Dulles Intl to Helsinki 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 4, 2025.
Use the filters below to find and compare flights from Washington, D.C. Dulles Intl Airport to Helsinki that are best for you.

Fly from

Dulles Intl

Fly to

Helsinki

Route

Depart

Return

Price

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 5/14

8:30 pm-2:00 pm

1 stop10h 30m

Helsinki-Vantaa

Fri 5/30

3:00 pm-7:20 pm

1 stop11h 20m

$482

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 4/23

9:20 pm-4:40 pm

1 stop12h 20m

Helsinki-Vantaa

Tue 4/29

7:15 am-7:53 pm

2 stops19h 38m

$510

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 5/5

5:07 pm-3:00 pm

1 stop14h 53m

Helsinki-Vantaa

Tue 5/13

12:35 pm-10:57 pm

1 stop17h 22m

$520

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 4/27

6:30 pm-11:20 pm

1 stop21h 50m

Helsinki-Vantaa

Sat 5/3

6:25 pm-3:35 pm

1 stop28h 10m

$531

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 4/21

5:25 pm-1:00 pm

1 stop12h 35m

Helsinki-Vantaa

Sun 4/27

7:00 am-3:35 pm

1 stop15h 35m

$543

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 5/5

10:05 pm-8:25 pm

2 stops15h 20m

Helsinki-Vantaa

Tue 5/13

9:05 pm-7:59 pm

2 stops29h 54m

$549

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 8/31

7:25 pm-3:15 pm

1 stop12h 50m

Helsinki-Vantaa

Sat 9/13

2:05 pm-8:15 pm

1 stop13h 10m

$580

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Thu 5/1

10:20 pm-6:55 pm

1 stop13h 35m

Helsinki-Vantaa

Sun 5/4

6:10 am-9:08 pm

2 stops21h 58m

$607

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 5/18

10:20 pm-6:55 pm

1 stop13h 35m

Helsinki-Vantaa

Sun 6/1

12:40 pm-7:25 pm

1 stop13h 45m

$618

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 6/20

5:25 pm-5:40 pm

1 stop17h 15m

Helsinki-Vantaa

Fri 7/11

7:00 am-3:35 pm

1 stop15h 35m

$791

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/4

Showing 1-10 of 22 results
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Compare providers for flights from Dulles Intl to Helsinki

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 Dulles Intl to Helsinki in April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*3 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 Washington, D.C. Dulles Intl Airport-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Washington, D.C. Dulles Intl Airport-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Washington, D.C. Dulles Intl Airport-Helsinki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C. Dulles Intl Airport-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub 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 Washington, D.C. Dulles Intl Airport-Helsinki 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 Dulles Intl to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Dulles Intl 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 Washington, D.C. Dulles Intl Airport to Helsinki

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

Use this chart to determine the optimal time to book a round-trip flight from Dulles Intl to Helsinki. Price data was last updated on March 28, 2025.

To ensure you get the cheapest price possible for a flight from Washington, D.C. Dulles Intl Airport to Helsinki, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

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

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helsinki (average of $444). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $1,123). 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 IAD to HEL?

Find hourly flight availability from Dulles Intl to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated April 4, 2025.

It’s typically best to fly out from Washington, D.C. Dulles Intl Airport to Helsinki at noon. Doing so could potentially save you 15% on the flight price compared to flying in the morning, which is usually more expensive.

Rainfall in Helsinki by month

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

In terms of precipitation, rainfall in Helsinki ranges from 1.2 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Helsinki when rainfall is around 1.2 in.

Temperature in Helsinki by month

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

If weather is an important factor for your trip to Helsinki, 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 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

Reviews of airlines servicing Helsinki

Get insights into the airlines that provide service to Helsinki. 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 Helsinki. Reviews last updated April 4, 2025.
Get a feel of what it's like to fly with Delta, KLM and Finnair from Washington, D.C. to Helsinki by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Delta
8.0
Very good
7,900 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
KLM
7.8
Good
1,323 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Finnair
7.6
Good
1,267 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
Air France
7.4
Good
1,427 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.
United Airlines
7.4
Good
8,618 reviews
Delta
8.0
Very good
7,900 reviews

Overall

8.0

Boarding

8.2

Crew

8.5

Food

7.3

Entertainment

7.9

Comfort

8.0

Reviews

1 / 20
10.0
Excellent

Aaron,Oct 2024

LAX - LHR

This was a flight operated by Virgin Atlantic in their Upper Class cabin. Overall, an outstanding experience.

Related info for your journey

Find useful and relevant information for your journey from Dulles Intl to Helsinki. 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 into for flights to Helsinki from Washington, D.C. Dulles Intl?

    Helsinki-Vantaa (HEL) is the airport you will fly into if you book a flight from Washington, D.C. Dulles Intl to Helsinki. You should not have trouble finding flights to Helsinki-Vantaa from Washington, D.C. Dulles Intl; the airport handles an average of 0 inbound flights from Washington, D.C. Dulles Intl per day. You should also have plenty of airline options to choose from since 8 airlines have flights to the Helsinki airport from Washington, D.C. Dulles Intl. It is only a 10.6 mi journey from Helsinki-Vantaa (HEL) to Helsinki’s city center.

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

    Flying on Icelandair is currently your cheapest option to Helsinki, with prices starting at $482. Additional round-trip tickets that might be worth considering are offered by Delta and American Airlines, with the lowest prices starting at $510 and $520, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to Helsinki for 24% less than the average price by searching for these airlines.

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

    To fly one-way, consider booking your trip with Icelandair, which is currently one of the cheapest options available, starting at $393. Air France flights start at $422 while deals on British Airways start at $477 one-way.

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

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

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

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

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

    Yes. Cheapflights offers flight deals from Dulles Intl to Helsinki 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 Washington, D.C. Dulles Intl Airport to Helsinki?

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helsinki (average of $444). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $1,123). 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.

See more FAQs

Traveling to a place near Washington, D.C. Dulles Intl Airport?

Book flights to Washington, D.C. Dulles Intl Airport if you plan to visit one of these locations
Vantaa
Espoo
Lahti

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Top 8 airlines flying from Dulles Intl to Helsinki

Discover the top 8 airlines that operate flights from Dulles Intl to Helsinki. 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 4, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$371Average$524FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$678FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$483Average$847FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$494Average$827FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$520Average$732FlexibilityNo cancel feeOn-time70%
DeltaCheapest$527Average$726FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$529Average$931FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$547Average$797FlexibilityNo cancel feeOn-time77%

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