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$294+ 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 12/8. Fares are subject to change and may not be available on all flights or dates of travel.
IAD — HEL
Aug 18 — Aug 251
Tue 8/18
Tue 8/25
1 adult, Economy
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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 July 19, 2026.

This Ticket deal was found by Cheapflights users on 7/15. 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.
Sun 8/168:20 pm
IAD
-
HEL
1 stop22h 10m
Scandinavian Airlines
Tue 9/19:05 pm
HEL
-
IAD
1 stop26h 55m
Scandinavian Airlines
Deal found 7/15$360
This oojo deal was found by Cheapflights users on 7/16. 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 10/288:40 pm
IAD
-
HEL
1 stop10h 20m
Icelandair
Tue 11/102:00 pm
HEL
-
IAD
1 stop11h 30m
Icelandair
Deal found 7/16$363
This oojo deal was found by Cheapflights users on 7/14. 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 10/1411:20 pm
IAD
-
HEL
1 stop31h 40m
Icelandair
Wed 10/213:00 pm
HEL
-
IAD
1 stop14h 15m
Icelandair
Deal found 7/14$365
This FlightHub deal was found by Cheapflights users on 7/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/158:30 pm
IAD
-
HEL
1 stop10h 30m
Icelandair
Thu 10/223:00 pm
HEL
-
IAD
1 stop11h 20m
Icelandair
Deal found 7/14$370
This FlightHub deal was found by Cheapflights users on 7/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:20 pm
IAD
-
HEL
1 stop31h 40m
Icelandair
Thu 10/223:00 pm
HEL
-
IAD
1 stop11h 20m
Icelandair
Deal found 7/14$372
This oojo deal was found by Cheapflights users on 7/16. 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 8/178:20 pm
IAD
-
HEL
1 stop12h 00m
Scandinavian Airlines
Wed 8/269:15 pm
HEL
-
IAD
2 stops26h 45m
Scandinavian Airlines
Deal found 7/16$373
This oojo deal was found by Cheapflights users on 7/17. 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.
Sun 9/138:20 pm
IAD
-
HEL
1 stop17h 05m
Scandinavian Airlines
Wed 10/711:15 am
HEL
-
IAD
1 stop12h 45m
Scandinavian Airlines
Deal found 7/17$375
This Mytrip deal was found by Cheapflights users on 7/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/138:30 pm
IAD
-
HEL
1 stop10h 30m
Icelandair
Sat 9/1911:55 pm
HEL
-
IAD
1 stop26h 25m
Icelandair
Deal found 7/14$377
This Mytrip deal was found by Cheapflights users on 7/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/98:30 pm
IAD
-
HEL
1 stop10h 30m
Icelandair
Mon 9/1411:55 pm
HEL
-
IAD
1 stop29h 20m
Icelandair
Deal found 7/14$378

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 July 19, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$360
(Ticket)

One-way from

$294
(Kiwi.com)

Popular in

June

Cheapest in

October

Average price

$1,002
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. 24% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($30 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in July 2026
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 July 19, 2026.
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

Fly to

Route

Depart

Return

Price

Cheapest round-trip

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Thu 11/12

8:30 pm-10:35 am

2 stops31h 05m

Helsinki-Vantaa

Sun 11/15

6:35 pm-5:15 pm

2 stops29h 40m

$409

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 9/9

8:20 pm-3:45 pm

2 stops12h 25m

Helsinki-Vantaa

Mon 9/14

9:15 pm-5:00 pm

2 stops50h 45m

$445
Quickest round-trip

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 12/6

7:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Thu 12/10

2:00 pm-6:30 pm

1 stop11h 30m

$492

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 10/9

8:20 pm-11:25 am

2 stops32h 05m

Helsinki-Vantaa

Thu 10/22

11:15 am-5:00 pm

1 stop12h 45m

$538

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 8/19

8:20 pm-3:20 pm

1 stop12h 00m

Helsinki-Vantaa

Thu 8/27

11:15 am-5:00 pm

1 stop12h 45m

$583

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 12/6

7:00 am-1:35 am

2 stops35h 35m

Helsinki-Vantaa

Thu 12/10

9:35 pm-6:50 pm

2 stops52h 15m

$645

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 8/2

11:20 pm-10:30 pm

1 stop16h 10m

Helsinki-Vantaa

Mon 8/17

11:30 pm-10:15 pm

1 stop29h 45m

$655

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sat 10/10

8:20 pm-3:20 pm

1 stop12h 00m

Helsinki-Vantaa

Sun 10/18

7:35 pm-5:00 pm

2 stops28h 25m

$670

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Fri 10/30

8:40 pm-1:00 pm

1 stop10h 20m

Helsinki-Vantaa

Tue 11/10

11:10 am-6:30 pm

2 stops14h 20m

$729

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sun 8/9

8:20 pm-1:30 am

1 stop22h 10m

Helsinki-Vantaa

Fri 8/14

6:10 am-5:00 pm

1 stop17h 50m

$730

Flights are sorted by cheapest round-trip flights first.

Deals found on 7/16

Showing 1-10 of 17 resultsSorted by cheapest first
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 July.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
oojoPrice Accuracy3 starsTrust Score*2 stars
CheapflightsfaresPrice Accuracy2 starsTrust Score*1 star
eDreamsPrice Accuracy2 starsTrust Score*3 stars
CheapfaremartPrice Accuracy-Trust Score*1 star
Trip.comPrice Accuracy1 starTrust 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?

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 45 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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helsinki (average of $510). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $1,007). 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 July 19, 2026.
See what other customers who have flown with Scandinavian Airlines,United Airlines, andIcelandair 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
1,885 reviews

Food

6.7

Boarding

7.7

Crew

8.0

Entertainment

6.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Scandinavian Airlines
7.4
Good
1,885 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews

Food

6.7

Boarding

7.7

Crew

8.0

Entertainment

6.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
United Airlines
7.4
Good
10,009 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews

Food

6.7

Boarding

7.7

Crew

8.0

Entertainment

6.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Icelandair
7.0
Good
713 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews

Food

6.7

Boarding

7.7

Crew

8.0

Entertainment

6.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(
Lufthansa
6.8
Okay
8,148 reviews
Scandinavian Airlines
7.4
Good
1,885 reviews

Food

6.7

Boarding

7.7

Crew

8.0

Entertainment

6.7

Overall

7.4

Comfort

7.3

Reviews

1 / 20
10.0
Excellent

Anonymous,Mar 2026

BOS - CPH

I booked sas lodge - but I was unable to use it in Copenhagen because lodge was beyond check point. But SAS website confirmed access:(

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 4 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 $492, Scandinavian Airlines can have you in Helsinki from Washington, D.C. Dulles Intl Airport in 10h 20m. The distance between Washington, D.C. Dulles Intl Airport and Helsinki is about 4308 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • 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 $374. Additional round-trip tickets that might be worth considering are offered by Scandinavian Airlines and United Airlines, with the lowest prices starting at $423 and $462, respectively. You may be able to fly from Washington, D.C. Dulles Intl Airport to Helsinki for 45% 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, October is the cheapest month in which you can book a flight from Washington, D.C. Dulles Intl Airport to Helsinki (average of $510). Flying from Washington, D.C. Dulles Intl Airport to Helsinki in June is currently the most expensive (average of $1,007). 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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Alternative routes for Dulles Intl to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.
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Dulles Intl to Rovaniemi flights

Top 4 airlines flying from Dulles Intl to Helsinki

Discover the top 4 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 July 19, 2026.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$374Average$676FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$423Average$555FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$462Average$774FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$493Average$840FlexibilityNo cancel feeOn-time76%

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