WAS - HEL

$330 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 7/24. 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.
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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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Cheap Flights from Washington, D.C. to Helsinki

 
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.

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

KAYAK's recommended round-trip deals from the most popular airlines that fly from Washington, D.C. to Helsinki.
Discover the best prices for you by selecting your travel dates on KAYAK.
Delta Logo
9:20 pm - 4:40 pmIAD-HEL
12h 20m1 stop
Delta Logo
6:40 am - 4:20 pmHEL-IAD
16h 40m1 stop
$525Delta
Find Deal
Mon, May 26 - Wed, Jun 11
 Logo
1:03 pm - 6:55 pmIAD-HEL
22h 52m2 stops
 Logo
6:00 am - 7:25 pmHEL-IAD
20h 25m1 stop
Tue, Aug 12 - Fri, Aug 22
United Airlines Logo
6:35 pm - 6:55 pmIAD-HEL
17h 20m2 stops
United Airlines Logo
6:10 am - 5:30 pmHEL-IAD
18h 20m2 stops
$567United Airlines
Find Deal
Tue, Aug 12 - Fri, Aug 22
Icelandair Logo
8:30 pm - 2:00 pmBWI-HEL
10h 30m1 stop
Icelandair Logo
3:00 pm - 7:25 pmHEL-BWI
11h 25m1 stop
$607Icelandair
Find Deal
Mon, Jul 21 - Fri, Jul 25
Icelandair Logo
8:30 pm - 2:00 pmIAD-HEL
10h 30m1 stop
Icelandair Logo
3:00 pm - 10:10 pmHEL-IAD
14h 10m1 stop
$625Icelandair
Find Deal
Tue, Jul 15 - Tue, Jul 22
United Airlines Logo
10:10 pm - 4:50 pmIAD-HEL
35h 40m2 stops
United Airlines Logo
6:10 am - 9:08 pmHEL-IAD
21h 58m2 stops
$629United Airlines
Find Deal
Mon, May 19 - Tue, May 27
American Airlines Logo
5:59 pm - 2:15 pmDCA-HEL
13h 16m1 stop
American Airlines Logo
5:15 pm - 10:36 pmHEL-DCA
12h 21m1 stop
$636American Airlines
Find Deal
Wed, May 14 - Fri, May 30
British Airways Logo
6:00 am - 12:20 pmDCA-HEL
23h 20m2 stops
British Airways Logo
9:05 pm - 3:56 pmHEL-DCA
25h 51m2 stops
$681British Airways
Find Deal
Tue, Jul 15 - Tue, Jul 22
American Airlines Logo
6:43 am - 10:45 amBWI-HEL
21h 02m1 stop
American Airlines Logo
12:35 pm - 11:17 pmHEL-BWI
17h 42m1 stop
$711American Airlines
Find Deal
Wed, Jul 2 - Wed, Jul 23
British Airways Logo
9:20 pm - 11:15 amBWI-HEL
30h 55m2 stops
British Airways Logo
9:05 pm - 7:35 pmHEL-BWI
29h 30m1 stop
$747British Airways
Find Deal
Mon, Aug 4 - Mon, Aug 11
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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.

What’s the cheapest day of the week to fly from Washington, D.C. to Helsinki?

The average price of all round-trip flights from Washington, D.C. to Helsinki clicked on KAYAK for each day over the last 12 months.

If you are looking for a flight deal from Washington, D.C. to Helsinki, look for departures on Mondays and avoid leaving on a Saturday, as it's usually the priciest day. When flying back from Helsinki, Monday is the cheapest day to fly and Saturday is the most expensive.

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 $963 and $811 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 3 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonSeptember
High seasonNovember
Cheapest flight$330
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly and prices are also 36% 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 $330 for a one-way ticket and $525 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.

  • What is the most popular layover when flying to Helsinki from Washington, D.C.?

    Reykjavik is the most popular layover city among KAYAK users traveling from Washington, D.C. to Helsinki.

  • 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 $727 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 $807 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.

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 8696 reviews
7.3Comfort
7.7Boarding
7.1Entertainment
6.6Food
8.1Crew
Airline reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

10.0 ExcellentAnonymous, Apr 2025SFO - HKG
Read more United Airlines reviews

Everything is good except the dinner and breakfast. The sandwich is very delicious. Toilet is clean, I only use one of them. Flight attendants are very nice. 👍👍

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Multiple delays and not straight answer from the United team

For economy, it was very good. Staff was great, they even let some of us change seats for more leg room... Put an empty seat between us which was fantastic for a 12hr flight. Onboard entertainment was excellent, I think over 200 choices of movies/tv/etc The bad was the barely/nonfunctional wifi that cost either $16.99 or 1700 miles (full flight). It was atrocious... Definitely the worst of the last 3 long haul major airlines I was on the last few months.

Stewardess spilled orange juice on my clothes/seat no help no apology just threw napkins at me to clean the mess up. Not Happy.

Smooth flight. Boarding was chaotic. Could not hear the gate agent over the intercom. People were lined up in the wrong lines. Groups one and two were told to board through line one and group 3 through line 2. All very confusing. Once in the air, the flight was smooth. There was no entertainment option on this aircraft, even though it was a larger aircraft.

The plane pushed back from the gate on time. However, it stopped on the ramp, and we waited for over 20 minutes before the aircraft pulled back to the gate. Apparently, something of importance had to be removed from the aircraft by the gate agent. I found this to be odd. The delay was not significant, but I felt that whatever was on the aircraft that had to be taken off, should’ve been done before we pushed back from the gate.

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.

Several delays. Next flight was worse. Did not arrive home until 2am PT

Very helpful ground crew after an earlier flight delay and being rebooked on a different flight.

Everything about the flight was lovely…We left early, arrived early, cabin crew were efficient and helpful. Flight was easy and most pleasant.

First world problems, but still… We were seated in first class and asked for a cocktail on a very short, 50 minute flight. After our drink order was taken, a half hour went by, and we noticed that every other person in the small plane had been served except for us. We got up to ask about it, the drinks finally came, then were taken away three minutes later since the flight was so short. Really strange situation, on the other hand, we were in Utah.

We missed our flight. The boarding pass had the wrong gate and by the time we received the text from Kayak, our flight was already gone. I’ll never use Kayak again and will go direct to the airlines in the future.

Boarding took forever, the plane was cramped and cold, and the seatbelt song came on constantly throughout the red eye flight with a loud pre-recorded message playing each time

Cabin felt crammed Snacks are lame But crew was super efficient getting us out on time despite delay

Took off on time and successfully avoided weather that looked to be a problem along the way

There were five broken seats on the plane. The crew was very rude in telling people they had to get off the plane and get a flight the next day. No call for volunteers, but telling people they had to get off. One woman was flying with her elderly mother and daughter and was told she had to leave or all three had to leave. Fortunately, a volunteer offered to stay. The situation was handled poorly.

The flight to Tokyo AA61 took off about two hours late, but then had to turn back. By that time the crew had to be replaced. Then they kept promising to take off in an hour, then in 3, then switch to the next day.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

Smooth efficient airline. Think they should have their own bag drop as the queue took 30mins to bmscan and drop

Good. Lacking overhead bin space. No food offered but you can order online or in flight and pay for snacks.

No food was served for 7.5 hrs flight. When our flight changed to other airlines due to wether issue, our seats booked with no checked in luggage when I already payed for. We end up to pay 90 euro per suitcase.

The flights were in time and the bags arrived. well done

Overall good. I was surprised how easy it was to get from plain to plain in such a short time. Food choices were not so great and quite expensive. Entertainment was ok. Flights were smooth.

Our three ski bags did not arrive and are still not delivered, one full day later. With one ski bag not traceable at all. I would not fly Iceland Air again.

Horrible. The flight was delayed by over 3 hours but updates were barely provided. Boarding started 3 hours late then stopped because their system crashed. So now, passengers were standing for 15 minutes in the open waiting to get boarding passes scanned and get on a bus. Duty-free closed around 4-4:30. Only 1 food outlet was open and it was super slow and busy since it was serving passengers from multiple flights. So a number of passengers couldn't buy meals at the terminal. Since the flight was delayed by over 3 hours, we could have been offered snacks on-board. Nothing. The seats barely reclined. In-flight entertainment options were pitiful. Overall, a miserable experience. Never flying on Icelandair ever again. :(

Bad. Flights were late, by hours. No clear information was provided even until the delayed boarding time.

Again, lines for boarding are a problem in iceland. The flight itself was fine and very smooth. No complaints. We would definitely fly icelandair again.

The row of seats were so cramped it was difficult to get in and out of your seat. I even upgraded. A long flight and sad accommodations 😵‍💫 the shorter flight was very comfortable and the seating was spacious

I bought a ticket and paid for for our luggage but I had to pay for my luggage again. I’m so disappointed! We had a 30 min delay and because of that we missed our connecting flight and were told that we would be on the next flight (9am flight ) but we were landed we were booked at 12pm flight. I had a little baby w me, it was very stressful. I begged to leave at 10 am at least. I was emailed that we get a voucher but they didn’t work when we were at a breakfast store. I’ve been always happy w Lufthansa but this time was awful.

Good service … bus transfer upon arrival from plane to terminal: atrocious!!!

helpful and friendly. The Lufthanza people I dealt with before my holiday were so unhelpful by comparison.

We had a 1 1/2 hour delay before we left Denver. When we arrive to Frankfort, they didn’t announce that people with connecting flights to exit the plane first. My next flight was already boarding when we we taxiing in to the gate. I waited another 10 minutes to get off the plane. I had to run to catch my next flight. I mean run! I made it with one minute to spare, but my luggage did not. My luggage came two hours later on a different flight.

My flight was late from US to Frankfurt so I missed my connecting flight flight and I had to wait for long to catch the next flight which was very tiring. Otherwise everyone was very nice.

It would have been nice if my luggage had made it onto my connecting flight as well. Now I have to wait for my luggage to be delivered and that might take a while, which certainly put a damper on the entire experience.

Crew was not happy. Very uncomfortable seats. When person leans back in front of you the screen is too close to me. Food was awful.

They lost my luggage and despite all follow ups through emails and phone calls they don’t give me an update

Everything went really well. Snacks could be better and there was no tea/coffee service after dinner. Crew was helpful and friendly.

Too much long line at the TSA and Security. Prepare for long walk for baggage claim.

The flight from Seattle was delayed, which made me miss my connection to Florence. I was re-booked NINE HOURS LATER!!! That’s basically a vacation day lost. British Airways needs to partner with other airlines when possible to get a more realistic travel time, if delays occur. I realize there aren’t many flights to Florence from London, so I would book differently were I to return. The actual flight from Seattle was very comfortable and the crew was great, no faults there. I enjoy British Airways, this was an anomaly.

The crew could not have been more helpful, my meal was excellent, I slept peacefully until right before landing, and the BA lounge was a godsend. The only negative I encountered was the coffee both on the plane and in the lounge. Not to my taste but that’s a personal preference.

I don’t understand why a reputable airline like BA would delegate their London flights to AA. Makes no sense to me, as most domestic carriers do such a poor job these days. Terminal 3 at LHR is a total dump

The boarding process was quite loud and chaotic. The flight attendants kept barking over the PA system about people needing to only stow large items in the overhead bins. During the one and only service, I was hit by the service cart. At the same time, a passenger was returning from the bathroom and the crew definitely saw him but stopped a few seats short of allowing him to sit down before starting service and made him wait a good 10 minutes before passing his seat and allowing him to sit down, after which he had to ask for his snack and beverage or he would have been passed over. Neither flight attendant thanked passengers as they left; in fact, I did not see them again once the plane door was opened.

Cancelled flight minutes before boarding. Rescheduled flight was two days later

The flight attendants were EXTREMELY personable and appreciated the service, lights going off after dinner (probably the norm, but I haven’t flown evening overnight flights in a while). Thank you!

Business class seats were very dated on my plane. Very little storage, charging ports were not easily accessible, tv screen kept flopping away. Vegetarian food was disappointing: hardly any protein and severely under-seasoned. Crew was lovely.

The food was ok, but not great. They delayed boarding in Portland and did not enforce group boarding. But the crew was excellent, went above and beyond.

The food was pathetic. There wasn't much leg room and recline space for such a long flight. No tea/ coffee for a 2-3 hour connecting flight without purchasing! Really!?

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

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