WAS - HEL

$269 Find Cheap Flights from Washington, D.C. to Helsinki

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Washington, D.C. to Helsinki departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Helsinki

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helsinki.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Washington, D.C. to Helsinki.
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Flights Deals

Cheap Flights from Washington, D.C. to Helsinki (WAS-HEL)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Washington, D.C. to Helsinki that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Washington, D.C. to Helsinki

Mon, Aug 11 - Tue, Aug 26
Icelandair Logo
8:30 pm - 2:00 pmIAD-HEL
10h 30m1 stop
Icelandair Logo
3:00 pm - 7:20 pmHEL-IAD
11h 20m1 stop
$415Icelandair
Find Deal
Wed, Jan 14 - Tue, Jan 20
Icelandair Logo
7:40 pm - 12:55 pmIAD-HEL
10h 15m1 stop
Icelandair Logo
1:55 pm - 6:25 pmHEL-IAD
11h 30m1 stop
$418Icelandair
Find Deal
Mon, Aug 18 - Tue, Aug 26
Scandinavian Airlines Logo
10:05 pm - 12:05 amIAD-HEL
19h 00m1 stop
Scandinavian Airlines Logo
6:35 am - 7:59 pmHEL-IAD
20h 24m1 stop
$427Scandinavian Airlines
Find Deal
Wed, Dec 3 - Wed, Dec 10
Scandinavian Airlines Logo
8:30 pm - 3:25 pmIAD-HEL
11h 55m1 stop
Scandinavian Airlines Logo
9:00 pm - 5:15 pmHEL-IAD
27h 15m1 stop
$430Scandinavian Airlines
Find Deal
Mon, Dec 1 - Mon, Dec 15
British Airways Logo
6:20 pm - 11:15 pmIAD-HEL
21h 55m2 stops
British Airways Logo
7:35 pm - 3:35 pmHEL-IAD
27h 00m1 stop
$453British Airways
Find Deal
Mon, Oct 20 - Sun, Oct 26
American Airlines Logo
2:55 pm - 2:00 pmDCA-HEL
16h 05m1 stop
American Airlines Logo
4:50 pm - 10:57 pmHEL-DCA
12h 07m1 stop
$457American Airlines
Find Deal
Fri, Jan 16 - Tue, Jan 20
American Airlines Logo
11:30 am - 10:45 amIAD-HEL
16h 15m1 stop
American Airlines Logo
12:30 pm - 10:18 pmHEL-IAD
16h 48m1 stop
$482American Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 19
United Airlines Logo
10:20 pm - 6:55 pmIAD-HEL
13h 35m1 stop
United Airlines Logo
6:10 am - 3:50 pmHEL-IAD
16h 40m1 stop
$503United Airlines
Find Deal
Tue, Aug 12 - Tue, Aug 19
United Airlines Logo
1:03 pm - 4:50 pmIAD-HEL
20h 47m2 stops
United Airlines Logo
6:10 am - 3:50 pmHEL-IAD
16h 40m1 stop
$507United Airlines
Find Deal
Mon, Oct 13 - Wed, Oct 22
British Airways Logo
9:35 pm - 5:50 pmBWI-HEL
13h 15m1 stop
British Airways Logo
9:05 pm - 7:45 pmHEL-BWI
29h 40m1 stop
$544British Airways
Find Deal
Booking Insights

KAYAK's insights & trends for Washington, D.C. to Helsinki flights

Get data-powered insights and trends into flights from Washington, D.C. to Helsinki to help you find the cheapest flights, the best time to fly and much more.

How much is a round-trip flight from Washington, D.C. to Helsinki?

What is the cheapest month to fly from Washington, D.C. to Helsinki?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Washington, D.C. to Helsinki, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Washington, D.C. to Helsinki is November, where tickets cost $364 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $777 and $734 respectively.

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

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Washington, D.C. to Helsinki, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Washington, D.C. to Helsinki, you should book around 1 week before departure. For the absolute cheapest price, our data suggests you should book 21 weeks before departure.

Good to know

Low seasonSeptember
Cheapest flight$269
Best time to beat the crowds with an average 4% drop in price.
Most popular time to fly and prices are also 35% lower on average.
Flight from Washington Dulles Airport to Helsinki

When to book flights from Washington, D.C. to Helsinki

Are your dates flexible? Find out the best times to travel from Washington, D.C. to Helsinki based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking flights from Washington, D.C. to Helsinki

  • What is the cheapest flight from Washington, D.C. to Helsinki?

    In the last 3 days, the lowest price for a flight from Washington, D.C. to Helsinki was $269 for a one-way ticket and $415 for a round-trip.

  • Do I need a passport to fly between Washington, D.C. and Helsinki?

    Yes, you’ll need a passport to travel to Helsinki from Washington, D.C..

  • Which airports will I be using when flying from Washington, D.C. to Helsinki?

    Washington, D.C. has 2 major airports: Washington, D.C. Reagan-National and Washington, D.C. Dulles Intl. Helsinki-Vantaa is the only airport in Helsinki. You’ll usually find the cheapest deals if you fly from Baltimore/Washington Airport.

  • Which aircraft models fly most regularly from Washington, D.C. to Helsinki?

    We unfortunately don’t have that data for this specific route.

  • Which airline alliances offer flights from Washington, D.C. to Helsinki?

    Star Alliance, oneworld, and SkyTeam are the airline alliances operating flights between Washington, D.C. and Helsinki, with SkyTeam being the most commonly used for this route.

  • Which is the best airline for flights from Washington, D.C. to Helsinki, Delta or KLM?

    The two airlines most popular with KAYAK users for flights from Washington, D.C. to Helsinki are Delta and KLM. With an average price for the route of $737 and an overall rating of 8.0, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $711 and an overall rating of 7.8.

  • How does KAYAK find such low prices on flights from Washington, D.C. to Helsinki?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Washington, D.C. to Helsinki.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Washington, D.C. to Helsinki?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from Washington, D.C. is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Washington, D.C. to Helsinki?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Helsinki with an airline and back to Washington, D.C. with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Washington, D.C. to Helsinki?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Helsinki from Washington, D.C. up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

Reviews of the top 5 airlines serving from Washington, D.C. to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from Washington, D.C. to Helsinki. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Washington, D.C. to Helsinki? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8896 reviews
8.1Crew
7.7Boarding
7.1Entertainment
7.3Comfort
6.6Food
Airline reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

8.0 ExcellentHal, Jul 2025IAD - MSY
Read more United Airlines reviews

Was on time until within 1 hour of flight-how does that happen? Staff very friendly.

the delay for 3 hours was understandable due to weather conditions but the flight should’ve provided some on flight compensations or at least provide more food.

Weather delay in Chicago?. No sense of urgency to make connection in Chicago for our connecting flight that wasn't delayed. Connection was missed.

Our flight was understandably diverted to a small regional airport in Laramie, Wyoming due to weather conditions, which I fully recognize and appreciate. However, the low rating stems from the experience that followed: passengers remained on board for over an hour without the option to deplane and stretch, despite the aircraft being stationary. Although the pilot opened the cabin door, only he was permitted to exit. Meanwhile, passengers grew increasingly uncomfortable as warm summer air entered the cabin through the open door, and being in the second row meant we were impacted immediately. While the flight attendants made efforts to keep everyone at ease, I believe allowing passengers to deplane briefly, given the extended delay, would have significantly improved the overall experience.

I never flew. Flight was canceled. DIA worst airport in the country. Avoid at all costs.

I liked the choice of lemon ginger tea. I think stewardesses can be more considerate of older people needs.

We were given vouchers we couldn’t use with a 5.5 hour delay

I fly UAL 7-8 times per year. This flight was not up to snuff because it boarded very late "due to unexpected delays in restocking the plane" and yet Flight Aware showed the plane had landed some 10 hours earlier--so I think they could have planned accordingly. The FA's were nice but harried. The video system had to be rebooted 3-4 times. The food service was rather abrupt; they forgot my row and when I asked for my meal, they brought it with some impatience. Overall, the flight was fine, but the little details made it feel somewhat mundane and hurried.

I didn’t get on plane. Passport being processed by consulate with visa application. Tried to cancel through underpricer after purchasing cacelling for any reason. No dice, they are thieves.

When I booked it on Kayak it aaid that I wasn't allowed hamd luggage. I called United Airlines and it took them 6 minutes to figure out if I was allowed free hand luggage. Surely something that simple they should be able to tell me instantly.

No choice of food. Needed to pay more even for a can of coke!!!

The seats were really close together and hard to get comfortable. The food was okay. The cheese was amazing! I loved the cold towels they gave us.

When my flight was changed from delays they were quick to rebook me.

I really enjoyed how clean and big the aircraft was, as well as how friendly the crew was.

The Recaro seats are stiff and have minimal padding. Quite uncomfortable for a 5.5 hour flight. The upfront seats and space are identical to the ones in the back. The upgrade was not worth it.

Airline left me stranded in the U.S. gave me an unrequested refund of 40% of booking and canceled my trip back! When I asked why, the said “we don’t have to tell you why”. “But you can rebook”. Never again! Paid 2x and rebooked on Austrian. What a joke!

Painful seats for a 10 hour flight. There’s a very hard flat board in the seat that goes up to half the back and after 7 hours it gets impossible to find the right position to avoid the pain.

I loved it the staff across the terminal process from entry to airport and boarding of flight excellent. Onboard aircraft the flight attendants crew were fabooois lovely and always assisting

I love it the scandavians know hospitality travel and are very friendly peopu

I paid for the seat with more leg room but on the day of my departure my seat was changed. I brought it to the airline costumer service and he was able to change it back. The person sitting next to me had the same exact issue.

Very poor delay in dfw was really bad n long

Our flight was 1.5 hours delayed. There was no weather for the inbound flight, so I don't understand why. This meant a VERY late arrival and only a quick nap before my morning flight.

Because of rescheduling, they had to put me on a flight that didn't go through Dallas

It was very difficult to stretch my knee out and I am very short. I also had a torn tendon in my knee which made it extra uncomfortable anyways. My husband is 6'2" and I can't imagine him flying in that plane.

3 hour weather delay followed by 1 hour (and counting) maintenance delay. UGH!

Couldn’t get the door on the plane to close leading to a nearly 2 hour delay. But, hey at least they didn’t cancel the flight.

Flight was cancelled 3 hrs AFTER etd. Thetefore Missed connection from JFK to New Zealand . No accommodation provided… This cost ne aporox 1000 USD in extra expenses and turned whst should have been a 24 hr trip ftom Boston - New Zealand into a VERY expensive , late 70+ hr nightmare … Complete nonsense!!!

After we'd boarded , they canceled the flight. The crew didn't even know , we just all received text messages. Then after they deplaned us , AA was just like "too bad, go F your self, we sure ain't gonna help you"

The plane was broken so we had to change planes.

They are still charging me after taking 466 and 833 for round trip from AR to to Bradley airport from 19 to 21. Then poor experience. Am hurt and I will say it on social media. Please stay away from this airline. I see in my bank account they are still taking 644. Am trying to stop it. I used to fly United airlines and I suggest that if you don't want extra charges and good service you go back there. American airlines delayed my flight again and I was late for my meeting, no recompensation but charging me over and over.

Boarded with no problems. Sat on the tarmac for an hour before taking off. We were the last ones on our connecting flight. Didn't think we were going to make it. Our flight to Iceland was similarly delayed. When we've flown other airlines, pilots have tried to make up time while in the air. This doesn't seem to be something that Icelandair does. We made all of our flights, but it was stressful and we didn't think it was going to happen based on the time we arrived.

The flight was delayed and as a consequence we missed our connecting flight. Were stuck for another 6h in Reykyavik. Appreciated that we got a generous food voucher at least. Would have liked to see more information upon arrival including a person waiting for connecting flight travellers and informing already that we will not catch the flight and directing us to the office dealing with the matter; unfortunately that didnt happen and we hence first needed to find out whether flight had indeed left already and then locate the adequate office to help us with booking us on the next connecting flight. Also my suitcase broke and it is not clear whether it is happened on the leg with Iceland Air from DC to Reykyavik or on the leg with Lufthansa from Reykyavik to Frankfurt. Finally, understood that it is a low cost company but at least provision of earplugs for free would have been nice, instead of making them buy.

Great experience on Icelandair flight from Newark to Amsterdam by way of Reykjavík. Courteous and professional staff. Food was solid. Service - outstanding. Cabin was a little warm.

Good service. No complementary food for international flight. WiFi kinda pricey. Got the job done for the right price.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

My experience with British Airways is excellent, thanks for all 🫶🏻✈️

Old tired plane, Uncomfortable business class seat. Breakfast dreadful and meagre. At least flight was on time!

Safe arrival. Improvement on Time efficiency Effective Communication will be great.

The crew is very friendly and helpful. The food is good for airplane food. The flight is long and hard to sleep. The leg space is great. The plane arrived in plenty of time.

A good flight back to Tampa and thankfully although we had a 90 minute delay because of thunder storms from Charlotte to bottom iof Florida, it was a prudent to avoid these for a comfortable flight as opposed to being tossed around with turbulence.

They removed our booking without telling us. Cost us thousands to book last minute

Enjoyable flight, helpful crew everything was organized to accommodate passengers.

Captain sick. Unable to get replacement so delayed me 30 hours, many others delayed 54 hours. TOTALLY DESTROYED ALL MY PLANS, including lost my rental car which would now cost over 5 times what I paid so stuck with buses n trains... lost hotel reservations.... HORRIBLE!!!

The international flight from PHL to Lisbon was one of the worst I’ve experienced, ever. What was really disappointing was the entire experience of comfort and service in the coach cabin after takeoff. The food was inedible and the wine served with dinner was such low quality - it tasted of petrol. I couldn’t eat more than a bite or two of the chicken entree, being worried it would make me ill. The service took so long to reach the entire coach cabin, I ended up having the lights turned off on me as though I had to rush though dinner (though as I mentioned, it wasn’t as if I ate much - only the salad). Most of the attendants seemed generally annoyed and were not friendly or polite. While there was some turbulence, it wasn’t too uncomfortable and I know that is just a chance. The temperature of the cabin was so warm, even a friend a row or two up and on the other side of the plane felt like this. To top it all off, the seat was so uncomfortable and flattened/overused, I had back pains for DAYS afterward.

They’ve lost my bag and I have no way of really getting in touch with anyone and have received no updates.

Everything you need to know for your flight from Washington, D.C. to Helsinki

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