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$325+ 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 1/15. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HEL
Jan 4 — Jan 111
Sun 1/4
Sun 1/11
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 March or October, booked 54 days in advance, depart on a Monday or Thursday and return on a Monday

Cheap 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 December 5, 2025.

This deal was found by Cheapflights users on 12/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:40 pmIAD - HEL
1 stop10h 15mIcelandair
Wed 1/141:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 12/3$368
This deal was found by Cheapflights users on 12/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:40 pmIAD - HEL
1 stop10h 15mIcelandair
Mon 1/121:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 12/3$392
This oojo deal was found by Cheapflights users on 12/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:40 pmIAD - HEL
1 stop10h 15mIcelandair
Mon 1/121:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 12/3$395
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 pmIAD - HEL
1 stop16h 20mDelta
Tue 1/136:30 amHEL - IAD
2 stops36h 13mDelta
Deal found 12/3$490
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 pmIAD - HEL
1 stop12h 05mDelta
Mon 1/122:05 pmHEL - IAD
2 stops36h 04mDelta
Deal found 12/3$492
This KLM deal was found by Cheapflights users on 12/3. 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.
Wed 12/319:40 pmIAD - HEL
1 stop17h 55mMultiple Airlines
Sun 1/116:20 pmHEL - IAD
1 stop28h 45mMultiple Airlines
Deal found 12/3$504
This KAYAK deal was found by Cheapflights users on 12/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:20 pmIAD - HEL
2 stops34h 40mLufthansa
Tue 1/137:05 amHEL - IAD
1 stop14h 30mLufthansa
Deal found 12/3$506
This KAYAK deal was found by Cheapflights users on 12/3. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/306:20 pmIAD - HEL
2 stops34h 40mLufthansa
Mon 1/127:35 pmHEL - IAD
1 stop27h 00mLufthansa
Deal found 12/3$513
This deal was found by Cheapflights users on 12/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:40 pmIAD - HEL
1 stop10h 15mIcelandair
Sun 1/111:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 12/3$514
This deal was found by Cheapflights users on 12/3. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/307:40 pmIAD - HEL
1 stop10h 15mIcelandair
Sun 1/111:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 12/3$515
This Delta deal was found by Cheapflights users on 12/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/316:05 pmIAD - HEL
1 stop12h 05mDelta
Sun 1/112:05 pmHEL - IAD
2 stops36h 04mDelta
Deal found 12/3$527
This Cheapflightsfares deal was found by Cheapflights users on 12/4. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:40 pmIAD - HEL
1 stop10h 15mIcelandair
Sat 12/131:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 12/4$529

Find 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 December 5, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

Gurufare
3 stars

Round-trip from

$359
(CrystalTravel)

One-way from

$325
(Kiwi.com)

Popular in

June

Cheapest in

March

Average price

$572
Provider with most accurate pricing for Washington, D.C. Dulles Intl-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. Dulles Intl-Helsinki-Vantaa flights.
Search Deals
From Washington, D.C. Dulles Intl to Helsinki-Vantaa
Search Deals
One-way flight from Washington, D.C. Dulles Intl to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 18% potential increase in price ($137 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 3% potential price decrease ($22 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in December 2025
Search Deals

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 December 5, 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 2/11

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Thu 2/19

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 1/30

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Tue 2/10

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 1/30

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Sun 2/8

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Thu 1/29

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Sun 2/8

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 1/26

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Mon 2/9

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 1/27

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Thu 2/12

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 1/30

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Thu 2/12

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 1/28

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Thu 2/12

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 1/28

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Sun 2/8

1:55 pm-6:30 pm

1 stop11h 35m

$391

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Thu 1/15

5:30 pm-8:40 pm

3 stops20h 10m

$325

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/4

Showing 1-10 of 19 results
1
2

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 December.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
eDreamsPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars
GurufarePrice Accuracy2 starsTrust Score*3 stars
Trip.comPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star

*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 eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Washington, D.C. Dulles Intl Airport-Helsinki flight deals on Cheapflights vs. eDreams >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 Gurufare the most. Gurufare 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 November 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 54 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 $365). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $654). 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.

How much does it cost to fly round-trip from Washington, D.C. Dulles Intl Airport to Helsinki?

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 December 5, 2025.
See what other customers who have flown with Scandinavian Airlines, United Airlines, and Icelandair from Washington, D.C. Dulles Intl Airport to Helsinki have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,592 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
Scandinavian Airlines
7.4
Good
1,592 reviews
Scandinavian Airlines
7.4
Good
1,592 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
United Airlines
7.4
Good
9,065 reviews
Scandinavian Airlines
7.4
Good
1,592 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
Icelandair
7.0
Good
584 reviews
Scandinavian Airlines
7.4
Good
1,592 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
Lufthansa
6.8
Okay
7,612 reviews
Scandinavian Airlines
7.4
Good
1,592 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.
British Airways
6.7
Okay
7,562 reviews
Scandinavian Airlines
7.4
Good
1,592 reviews

Boarding

7.6

Crew

8.0

Entertainment

6.7

Comfort

7.3

Food

6.7

Overall

7.4

Reviews

1 / 20
8.0
Excellent

Anonymous,Jun 2025

ATH - CPH

The flight crew of Aegean were very nice. I travelled coach, so comfort and such is based on that. However, their ground crew have a serious scam going. I flew from Athens to Santorini with all carry on baggage, nothing checked. On the return flight to Athens my baggage miraculously was "too big" for the over head compartments and had to pay to check my bags. I even told them I didn't pay coming over. Their answer? "I don't care." They hit everyone going back to Athens like that...that's a serious money maker at a minimum of 40 Euros per bag.

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 7 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.

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

    For as low as $391, Icelandair can have you in Helsinki from Washington, D.C. Dulles Intl Airport in 10h 15m. The distance between Washington, D.C. Dulles Intl Airport and Helsinki is about 4308 mi.

  • 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 $370. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and Lufthansa, with the lowest prices starting at $423 and $486, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to Helsinki for 37% less than the average price by searching for these airlines.

  • 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 $365). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $654). 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 Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

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Top 7 airlines flying from Dulles Intl to Helsinki

Discover the top 7 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 December 5, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$370Average$515FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$423Average$555FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$486Average$785FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$491Average$774FlexibilityNo cancel feeOn-time69%
DeltaCheapest$527Average$726FlexibilityNo cancel feeOn-timeN/A
British AirwaysCheapest$535Average$737FlexibilityNo cancel feeOn-time70%
KLMCheapest$554Average$707FlexibilityNo cancel feeOn-time75%

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