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$268+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
WAS — HEL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
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 September 17, 2025.

Round-trip from

$369
(CrystalTravel)

One-way from

$268
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$548
From Washington, D.C. (WAS) to Helsinki-Vantaa
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One-way flight from Washington, D.C. (WAS) to Helsinki-Vantaa
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Highest demand for flights based on searches. 22% potential increase in price ($158 potential increase over avg. RT price).
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Cheapest flight prices on average. 3% potential price decrease ($20 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/167:40 pmIAD - HEL
1 stop10h 15mIcelandair
Sat 11/221:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$367
This CrystalTravel deal was found by Cheapflights users on 9/16. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/107:40 pmIAD - HEL
1 stop10h 15mIcelandair
Fri 11/141:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/16$369
This Mytrip deal was found by Cheapflights users on 9/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:40 pmIAD - HEL
1 stop10h 15mIcelandair
Thu 11/61:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$374
This oojo deal was found by Cheapflights users on 9/17. 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.
Thu 12/47:40 pmIAD - HEL
1 stop10h 15mIcelandair
Thu 12/111:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/17$376
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:40 pmIAD - HEL
1 stop10h 15mIcelandair
Mon 11/101:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$380
This Booking.com deal was found by Cheapflights users on 9/15. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:40 pmIAD - HEL
1 stop10h 15mIcelandair
Tue 12/91:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$382
This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/47:40 pmIAD - HEL
1 stop10h 15mIcelandair
Sat 12/131:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$389
This Trip.com deal was found by Cheapflights users on 9/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:40 pmIAD - HEL
1 stop10h 15mIcelandair
Wed 12/101:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$391
This Gurufare deal was found by Cheapflights users on 9/15. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/308:40 pmIAD - HEL
1 stop10h 15mIcelandair
Wed 11/121:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$396
This Icelandair deal was found by Cheapflights users on 9/15. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/17:40 pmIAD - HEL
1 stop10h 15mIcelandair
Mon 12/81:55 pmHEL - IAD
1 stop11h 35mIcelandair
Deal found 9/15$403
This oojo deal was found by Cheapflights users on 9/16. 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.
Tue 10/148:30 pmIAD - HEL
1 stop10h 30mIcelandair
Tue 10/213:00 pmHEL - IAD
1 stop11h 20mIcelandair
Deal found 9/16$409
This oojo deal was found by Cheapflights users on 9/16. 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 12/17:40 pmBWI - HEL
1 stop10h 15mIcelandair
Mon 12/81:55 pmHEL - BWI
1 stop11h 45mIcelandair
Deal found 9/16$417

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 September 17, 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

Wed 2/11

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Wed 2/18

1:55 pm-6:30 pm

1 stop11h 35m

$376

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 12/3

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Mon 12/8

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 12/1

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Mon 12/8

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 12/2

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Thu 12/11

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 12/1

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Wed 12/10

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 12/1

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Thu 12/11

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Sat 12/6

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Thu 12/11

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Tue 12/2

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Mon 12/8

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Mon 12/1

7:40 pm-12:55 pm

1 stop10h 15m

Helsinki-Vantaa

Fri 12/5

1:55 pm-6:30 pm

1 stop11h 35m

$403

Washington, D.C.Helsinki

IAD - HEL

IADHEL

Washington, D.C. Dulles Intl

Wed 1/14

12:30 pm-3:25 pm

3 stops19h 55m

Helsinki-Vantaa

Tue 1/20

4:10 pm-5:15 pm

2 stops32h 05m

$417

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/17

Showing 1-10 of 57 results
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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 September 12, 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 $1,082). 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 September 17, 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.

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

What’s the top layover airport for flights from Washington, D.C. to Helsinki?

Share of 1-stop round-trip flights from Washington, D.C. to Helsinki chosen by Cheapflights users in the past 12 months, using the same layover each way.

Copenhagen (CPH) – chosen by Cheapflights users on 45% of 1-stop itineraries from Washington, D.C. to Helsinki on Cheapflights.

What’s the cheapest layover airport for flights from Washington, D.C. to Helsinki?

Average round-trip fare for 1-stop flights from Washington, D.C. to Helsinki, chosen by Cheapflights users in the past 12 months, with the same layover each way.

Reykjavik (KEF) is the most affordable 1-stop option, with an average round-trip price of $459.

What’s the fastest layover option from Washington, D.C. to Helsinki?

Shortest average travel time for 1-stop one-way flights from Washington, D.C. to Helsinki, based on itineraries clicked by Cheapflights users over the past 12 months, grouped by layover airport.

Flights via Reykjavik (KEF) have the shortest average one-way travel time for 1-stop routes: 10h 21m.

Which airport typically offers the quickest layover for flights from Washington, D.C. to Helsinki?

Average layover duration for 1-stop one-way flights from Washington, D.C. to Helsinki, chosen by Cheapflights users in the last 12 months, grouped by stopover airport.

Flights via Reykjavik (KEF) offer the fastest connection on this route, with an average layover time of 1h 02m.

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 September 17, 2025.
Read reviews from past customers who have flown Scandinavian Airlines, United Airlines, and American Airlines from Washington, D.C. to Helsinki. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Scandinavian Airlines
7.4
Good
1,486 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
United Airlines
7.4
Good
8,926 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
American Airlines
7.2
Good
10,000 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
Icelandair
7.0
Good
545 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.
British Airways
6.7
Okay
7,367 reviews
Scandinavian Airlines
7.4
Good
1,486 reviews

Crew

8.0

Food

6.7

Boarding

7.6

Comfort

7.3

Entertainment

6.6

Overall

7.4

Reviews

1 / 20
6.0
Good

Anonymous,May 2025

ATL - CPH

I asked for wheelchair assistance. When I got to Copenhagen, there was none. Luckily I found a robot type wheelchair that got me to my next gate. In Dusseldorf, there was no help at all. On the return trip, SAS bumped me and sent me to another airline without provision to get to my final destination. I had to make other arrangement to get home which was VERY expensive. I do not understand them, they treat Americans like trash.

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 8 different airlines.

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

    Departing from Washington, D.C. to Helsinki will take you 10h 15m. The distance from Washington, D.C. to Helsinki is about 4308 mi. This flight may include one or multiple stops.

  • 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 $371. Other airlines that can offer you cheap pricing are Scandinavian Airlines, from $420, and Lufthansa, from $482. These flights start at 34% 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 $365. Users have also found prices from $379 and $407 on Lufthansa and Air Canada, 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, Washington, D.C. Reagan-National - Helsinki-Vantaa or Baltimore/Washington - 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 $1,082). 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 8 airlines flying from Washington, D.C. to Helsinki

Discover the top 8 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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$355Average$512FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$420Average$555FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$482Average$778FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$516Average$774FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$526Average$732FlexibilityNo cancel feeOn-time70%
DeltaCheapest$527Average$726FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$529Average$697FlexibilityNo cancel feeOn-time75%
American AirlinesCheapest$580Average$899FlexibilityNo cancel feeOn-time71%

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