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$330+ Cheap flights from Washington, D.C. (WAS) 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 7/24. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HEL
May 5 — May 121
Mon 5/5
Mon 5/12
1 adult, Economy
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Cheapflights Tip: The best prices from Washington, D.C. to Helsinki-Vantaa are usually found in November or February, booked 66 days in advance, depart on a Tuesday or Monday and return on a Tuesday

Cheap flight deals from Washington, D.C. to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Washington, D.C. (WAS) 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 30, 2025.

Most accurate provider

AranGrant
3 stars

Most trusted provider

AranGrant
3 stars

Round-trip from

$517
(Icelandair)

One-way from

$330
(Trip.com)

Popular in

June

Cheapest in

November

Average price

$545
Provider with most accurate pricing for Washington, D.C. (WAS)-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Washington, D.C. (WAS)-Helsinki-Vantaa flights.
Search Deals
From Washington, D.C. (WAS) to Helsinki-Vantaa
Search Deals
One-way flight from Washington, D.C. (WAS) to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 28% potential increase in price ($226 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 7% potential price decrease ($37 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2025
Search Deals

Find flight deals from Washington, D.C. to Helsinki

Cheapest flights from Washington, D.C. to Helsinki
Explore the most affordable flight options available from Washington, D.C. to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 30, 2025.

This oojo deal was found by Cheapflights users on 4/29. 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 11/267:30 pmBWI - HEL
1 stop10h 30mIcelandair
Fri 12/52:00 pmHEL - BWI
1 stop11h 30mIcelandair
Deal found 4/29$430
This American Airlines deal was found by Cheapflights users on 4/29. 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.
Wed 11/2610:36 amDCA - HEL
1 stop17h 09mAmerican Airlines
Fri 12/512:30 pmHEL - DCA
1 stop17h 37mAmerican Airlines
Deal found 4/29$521
This Delta deal was found by Cheapflights users on 4/29. 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 11/51:00 pmBWI - HEL
2 stops17h 10mDelta
Wed 11/126:30 amHEL - BWI
2 stops19h 17mDelta
Deal found 4/29$535
This oojo deal was found by Cheapflights users on 4/29. 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.
Thu 12/117:40 pmIAD - HEL
1 stop10h 20mIcelandair
Wed 12/172:00 pmHEL - IAD
1 stop11h 20mIcelandair
Deal found 4/29$538
This Flightnetwork deal was found by Cheapflights users on 4/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/121:03 pmIAD - HEL
2 stops22h 52mMultiple Airlines
Fri 8/226:00 amHEL - IAD
1 stop20h 25mMultiple Airlines
Deal found 4/29$539
This Flightnetwork deal was found by Cheapflights users on 4/29. 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1210:05 pmIAD - HEL
1 stop29h 30mScandinavian Airlines
Fri 8/226:35 amHEL - IAD
1 stop20h 24mScandinavian Airlines
Deal found 4/29$549
This Delta deal was found by Cheapflights users on 4/29. 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 5/1412:00 pmDCA - HEL
2 stops18h 00mDelta
Fri 5/306:35 amHEL - DCA
2 stops18h 32mDelta
Deal found 4/29$549
This KLM deal was found by Cheapflights users on 4/29. 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 5/45:25 pmIAD - HEL
1 stop23h 55mKLM
Mon 5/126:25 pmHEL - IAD
1 stop28h 10mKLM
Deal found 4/29$554
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Thu 12/119:45 amIAD - HEL
2 stops25h 55mUnited Airlines
Wed 12/1712:45 pmHEL - IAD
1 stop14h 20mUnited Airlines
Deal found 4/29$558
This Gurufare deal was found by Cheapflights users on 4/29. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/239:55 pmIAD - HEL
1 stop16h 10mBritish Airways
Sat 11/292:00 pmHEL - IAD
1 stop32h 35mBritish Airways
Deal found 4/29$561
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 5/48:40 pmDCA - HEL
2 stops33h 10mUnited Airlines
Mon 5/126:10 amHEL - DCA
2 stops16h 39mUnited Airlines
Deal found 4/29$585
This CrystalTravel deal was found by Cheapflights users on 4/29. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/1410:20 pmIAD - HEL
1 stop18h 30mLufthansa
Fri 5/3012:40 pmHEL - IAD
1 stop13h 45mLufthansa
Deal found 4/29$592

Cheapflights Fare Finder

Customize your flight search to find flights from Washington, D.C. 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 30, 2025.
Use the filters below to find and compare flights from Washington, D.C. to Helsinki that are best for you.

Fly from

Washington, D.C.

Fly to

Helsinki

Route

Depart

Return

Price

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 8/12

1:03 pm-6:55 pm

2 stops22h 52m

Helsinki-Vantaa

Fri 8/22

6:00 am-7:25 pm

1 stop20h 25m

$539

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 8/12

10:05 pm-10:35 am

1 stop29h 30m

Helsinki-Vantaa

Fri 8/22

6:35 am-7:59 pm

1 stop20h 24m

$549

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Wed 5/14

12:00 pm-1:00 pm

2 stops18h 00m

Helsinki-Vantaa

Fri 5/30

6:35 am-6:07 pm

2 stops18h 32m

$549

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 8/12

6:35 pm-6:55 pm

2 stops17h 20m

Helsinki-Vantaa

Fri 8/22

6:10 am-5:30 pm

2 stops18h 20m

$567

Washington, D.C.Helsinki

DCA - HEL

DCAHEL

Washington, D.C. Reagan-National

Sat 5/17

6:50 pm-12:50 pm

2 stops35h 00m

Helsinki-Vantaa

Sat 8/23

6:10 am-9:48 pm

2 stops22h 38m

$585

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 5/14

10:20 pm-11:50 pm

1 stop18h 30m

Helsinki-Vantaa

Fri 5/30

12:40 pm-7:25 pm

1 stop13h 45m

$592

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 8/4

5:25 pm-1:00 pm

1 stop12h 35m

Helsinki-Vantaa

Mon 8/11

7:00 am-10:59 pm

2 stops22h 59m

$601

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Wed 5/14

2:29 pm-1:00 pm

2 stops15h 31m

Helsinki-Vantaa

Fri 5/30

1:55 pm-12:48 am

2 stops17h 53m

$604

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Mon 8/4

6:25 pm-5:40 pm

2 stops16h 15m

Helsinki-Vantaa

Mon 8/11

1:55 pm-12:17 am

2 stops17h 22m

$605

BaltimoreHelsinki

BWI - HEL

BWIHEL

Baltimore/Washington

Mon 7/21

8:30 pm-2:00 pm

1 stop10h 30m

Helsinki-Vantaa

Fri 7/25

3:00 pm-7:25 pm

1 stop11h 25m

$607

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/28

Showing 1-10 of 53 results
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Compare providers for flights from Washington, D.C. 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 Washington, D.C. to Helsinki 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
MytripPrice Accuracy3 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust 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 Washington, D.C.-Helsinki flights, users find the pricing of AranGrant to be most consistent on Cheapflights vs. AranGrant Users can find the same prices on Washington, D.C.-Helsinki flight deals on Cheapflights vs. AranGrant >95% of the time. Price accuracy is based on data collected from Washington, D.C.-Helsinki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Washington, D.C.-Helsinki 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 Washington, D.C.-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 Washington, D.C. to Helsinki

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

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

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

The best time to book flights from Washington, D.C. to Helsinki is 66 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 Washington, D.C. to Helsinki?

Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Helsinki (average of $444). Flying from Washington, D.C. to Helsinki in June is currently the most expensive (average of $1,085). 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 WAS to HEL?

Find hourly flight availability from Washington, D.C. 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 30, 2025.

When flying from Washington, D.C. to Helsinki, the time of day you fly usually plays a role in the price. Save by searching for a flight in the evening, which can drop the price by up to 27% versus a flight in the afternoon.

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 30, 2025.
Read reviews from past customers who have flown Delta, KLM and Finnair from Washington, D.C. to Helsinki. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

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
7,929 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

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
1,334 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

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
1,275 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

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.
Austrian Airlines
7.6
Good
780 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

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
1,446 reviews
Delta
8.0
Very good
7,929 reviews

Crew

8.5

Boarding

8.2

Comfort

7.9

Entertainment

7.9

Food

7.3

Overall

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 Washington, D.C. 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.?

    If you book a flight to Helsinki from Washington, D.C., you will be flying to Helsinki-Vantaa, which is the city’s only airport. Helsinki-Vantaa (HEL) is located 10.6 mi from the center of Helsinki. There are 0 flights from Washington, D.C. to Helsinki-Vantaa per day from 9 different airlines.

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

    Cheapflights users have booked flights from Washington, D.C. to Helsinki round-trip from $517. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from $549, and Delta, from $549. These flights start at 8% lower than the current average price 3 months from now.

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

    For one-way options, check prices for Icelandair. According to our data, you can fly for as low as $381. Users have also found prices from $421 and $423 on Lufthansa and Air France, respectively.

  • What are the most popular routes from Washington, D.C. to Helsinki?

    When deciding which route to take from Washington, D.C. to Helsinki consider Washington, D.C. Dulles Intl - Helsinki-Vantaa, Baltimore/Washington - Helsinki-Vantaa or Washington, D.C. Reagan-National - Helsinki-Vantaa as they are the most popular.

  • Can I find deals for flights from Washington, D.C. to Helsinki that include hotel bookings?

    Yes. In addition to deals on Washington, D.C. to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Washington, D.C. to Helsinki?

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

  • Can I find deals for business class flights from Washington, D.C. to Helsinki?

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

    Currently, November is the cheapest month in which you can book a flight from Washington, D.C. to Helsinki (average of $444). Flying from Washington, D.C. to Helsinki in June is currently the most expensive (average of $1,085). 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.?

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

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Top 9 airlines flying from Washington, D.C. to Helsinki

Discover the top 9 airlines that operate flights from Washington, D.C. 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 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$355Average$504FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$400Average$668FlexibilityNo cancel feeOn-time77%
DeltaCheapest$426Average$660FlexibilityNo cancel feeOn-timeN/A
American AirlinesCheapest$481Average$872FlexibilityNo cancel feeOn-time71%
United AirlinesCheapest$483Average$818FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$494Average$798FlexibilityNo cancel feeOn-time76%
British AirwaysCheapest$520Average$732FlexibilityNo cancel feeOn-time70%
KLMCheapest$529Average$931FlexibilityNo cancel feeOn-time75%
Air FranceCheapest$534Average$687FlexibilityNo cancel feeOn-time77%

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