HEL - BOS

$403 Find Cheap Flights from Helsinki to Boston

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Helsinki to Boston departing on 9/7. 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 Boston

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to Boston, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Helsinki to Boston, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Helsinki to Boston (HEL-BOS)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Helsinki to Boston 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 Helsinki to Boston

Thu, Sep 18 - Thu, Oct 2
Icelandair Logo
3:00 pm - 6:50 pmHEL-BOS
10h 50m1 stop
Icelandair Logo
8:50 pm - 2:00 pmBOS-HEL
10h 10m1 stop
$420Icelandair
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Tue, Sep 2 - Tue, Sep 9
Icelandair Logo
3:00 pm - 10:00 pmHEL-BOS
14h 00m1 stop
Icelandair Logo
8:50 pm - 2:00 pmBOS-HEL
10h 10m1 stop
$427Icelandair
Find Deal
Thu, Sep 18 - Thu, Sep 25
Icelandair Logo
3:00 pm - 10:00 pmHEL-BOS
14h 00m1 stop
Icelandair Logo
8:50 pm - 2:00 pmBOS-HEL
10h 10m1 stop
$439Icelandair
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Thu, Sep 18 - Thu, Oct 2
Finnair Logo
5:15 pm - 10:50 pmHEL-BOS
12h 35m1 stop
Finnair Logo
8:05 pm - 2:20 pmBOS-HEL
11h 15m1 stop
$440Finnair
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Thu, Sep 18 - Thu, Oct 2
Finnair Logo
5:15 pm - 10:50 pmHEL-BOS
12h 35m1 stop
Finnair Logo
8:05 pm - 2:20 pmBOS-HEL
11h 15m1 stop
$441Finnair
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Tue, Sep 2 - Tue, Sep 9
Delta Logo
1:55 pm - 6:25 pmHEL-BOS
11h 30m1 stop
Delta Logo
4:55 pm - 4:40 pmBOS-HEL
16h 45m2 stops
$483Delta
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Thu, Sep 18 - Thu, Oct 2
Delta Logo
7:00 am - 4:00 pmHEL-BOS
16h 00m2 stops
Delta Logo
10:20 pm - 4:40 pmBOS-HEL
11h 20m1 stop
$488Delta
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Mon, Sep 22 - Thu, Sep 25
Scandinavian Airlines Logo
4:05 pm - 3:35 pmHEL-BOS
30h 30m1 stop
Scandinavian Airlines Logo
5:40 pm - 3:25 pmBOS-HEL
14h 45m1 stop
$551Scandinavian Airlines
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Thu, Sep 18 - Thu, Oct 2
Air France Logo
1:55 pm - 10:30 pmHEL-BOS
15h 35m2 stops
Air France Logo
7:25 pm - 4:40 pmBOS-HEL
14h 15m1 stop
$572Air France
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Sun, Sep 21 - Fri, Sep 26
Scandinavian Airlines Logo
4:05 pm - 3:35 pmHEL-BOS
30h 30m1 stop
Scandinavian Airlines Logo
5:40 pm - 8:15 pmBOS-HEL
19h 35m1 stop
$586Scandinavian Airlines
Find Deal
Booking Insights

KAYAK's insights & trends for Helsinki to Boston flights

Get data-powered insights and trends into flights from Helsinki to Boston 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 Helsinki to Boston?

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

Your flight ticket price will generally be cheaper if you fly to Boston on a Wednesday and more expensive on a Sunday. On your return trip to Helsinki, you should consider flying back on a Tuesday, and avoid Fridays for better deals.

What is the cheapest month to fly from Helsinki to Boston?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Helsinki to Boston, 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 Helsinki to Boston is March, where tickets cost $430 (return) on average. On the other hand, the most expensive months are December and June, where the average cost of round-trip tickets is $797 and $771 respectively.

How far in advance should I book a flight from Helsinki to Boston?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Helsinki to Boston, 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 Helsinki to Boston, you should book around 3 weeks before departure, which saves you about 36% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 17 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$403
Best time to beat the crowds but there is an average 32% increase in price.
Most popular time to fly and prices are also 7% lower on average.
Flight from Helsinki to Boston

When to book flights from Helsinki to Boston

Are your dates flexible? Find out the best times to travel from Helsinki to Boston 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 Helsinki to Boston

  • What is the cheapest flight from Helsinki to Boston?

    In the last 3 days, the lowest price for a flight from Helsinki to Boston was $403 for a one-way ticket and $420 for a round-trip.

  • Do I need a passport to fly between Helsinki and Boston?

    Yes, you’ll need a passport to travel to Boston from Helsinki.

  • Which aircraft models fly most regularly from Helsinki to Boston?

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

  • Which airline alliances offer flights from Helsinki to Boston?

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

  • Which is the best airline for flights from Helsinki to Boston, Delta or Finnair?

    The two airlines most popular with KAYAK users for flights from Helsinki to Boston are Delta and Finnair. With an average price for the route of $561 and an overall rating of 8.0, Delta is the most popular choice. Finnair is also a great choice for the route, with an average price of $626 and an overall rating of 7.6.

  • How does KAYAK find such low prices on flights from Helsinki to Boston?

    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 Helsinki to Boston.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Helsinki to Boston?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Boston from Helsinki 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 Helsinki to Boston?

    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 Boston with an airline and back to Helsinki with another airline. Booking your flights between Helsinki and BOS can sometimes prove cheaper using this method.

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

    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 Boston from Helsinki 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 Helsinki to Boston

 
See real verified KAYAK customer reviews for airlines flying from Helsinki to Boston. 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 Helsinki to Boston? 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.
8.0
DeltaOverall score based on 7985 reviews
8.2Boarding
7.9Entertainment
7.9Comfort
7.3Food
8.5Crew
Airline reviews

Having to up charge for a seat assignment is not good. Delta can do better

8.0 ExcellentJacob, Aug 2025SLC - LWS
Read more Delta reviews

Having to up charge for a seat assignment is not good. Delta can do better

I liked the friendliness of the staff. The cleanliness of all 3 planes.

Was charged for my luggage despite having been on one ticket from an international flight. Too tired to argue after 15 hours on flight. Was charged for rechecking it at JFK airport. Not sure why those off Kenya Airways were required to do that.

It was beautiful easy and smooth experience. Thank you. Will definitely get Delta for my next travel.

De planning was an absolute mess. We were never told that we weren’t at the gate and that we had to go down unstable stairs and then hop on a bus. People were falling, we couldn’t tell who was in charge. Overall terrible communication that ended up leaving a bad impression at the very end of the experience.

My experience on any Delta flight is always overshadowed by the time Delta removed me from a flight for no apparent reason.

Check in process was terrible. Lady at counter didn’t know what she was doing

Delayed and took off even later than the scheduled delay time

For a 69 year old with health problems I had the worse experience, no wheelchair when I entered a lady told me to sit and wait while a gentleman told me I had to walk to the Delta station, which I did. I had a carry on and a bag, and I was traveling with my service dog, which was on his carrier and the lady charged me for my carry on luggage, beside all the waiting cause of the delay, I had to walk to get my luggage cause no wheelchair showed up, I am so disappointed. I will get in touch with the company. I got home at 3:00 am, not good for my health situation.

Great experience on Delta. Staff from baggage check to flight attendants were very courteous and professional. My only issue was a personal preference for pretzels instead of the chips and cookies that were offered.

Great. It was awesome to have boarding from the front and back of the plane as it made the process go very quickly

It was okay. The airplane was a little smaller than a flight from Thailand to Helsinki.

Wish that everyone would board the back of the plane first. Also let kids on first. The gate wasn’t open at arrival and we waited 45 minutes to takeoff. They made up for time in the air.

This was an absolutely exceptional flight. The flight attendants were extremely attentive and very friendly. They seemed to go out of their way to make us comfortable and to make sure that we had everything we needed., We were in business and were very happy with the size and the details for our pods. We would definitely recommend Finnair and will definitely be flying with them again.

We had an excellent trip with Finnair. This was our first time and we’re very pleased. The only issue was with the boarding - it was a little bit confusing and needs a little bit of streamlining.

Crew very lovely. Arrived an hour late due to bad weather. We were given new tickets to an other flight but it could have been organised better, so we did not have to run through the whole airport to.

Flight delayed over an hour. They said they would hold our connection but then did not.

Major problems checking in at Alaska counter. They could not find our booking code because it came from Finnair.

Do not use KAYAK or Finair for future travel. Unless you purchase the tickets directly from the airline, you were going to have a difficult time checking in. Kayak canceled my flights twice and ended up causing great difficulty in me getting back from Europe because they double sold my tickets between American Airlines and Finair. The event caused significant delays and led to me having to rebook my flights.

The staff were all particularly great. The plane was clean and fresh. The bassinet worked great. It was all very nice.

The food was great and the service and attitude was amazing!!

Old airplanes small seats expensive tickets, not as expected overall and not comfortable according to the price

It was an OK flight with below mediocre service by their flight attendants

Wasted a lot of time trying to find the CDG lounge - it was not next to the connecting flight gate like the Air France staff said.

My experience was good overall, the quality of the food really decreased! There used to be a choice between meat and fish now it’s between chicken and pasta! In the choices of entertainment meditation has been added which is very good. Soft chair workout to improve blood circulation and avoid phlebitis should be added.

The only reason the overall rating wasn't "excellent" was due to problems in claiming luggage. The bags are delivered to the main area (Cinta 35) for domestic passengers, but to a DIFFERENT ROOM for international arrivees. After waiting 30 minutes, someone (who didn't appear to be from Air France or the airport) told us to go to another area. There we found our bags, which appeared to have been awaiting us for a while. We had to go through a bag check before leaving the airport. If we had been alerted to this possibility, or better yet, been to go directly to Cinta 34, we could have eliminated quite a bit of waiting.

Much better than the major US Carriers especially in Biz Class.

I wish that the meal included a vegetable or even a salad instead of couscous! Why serve chicken with rice AND couscous? Service was good overall though a bit lacking in friendliness. Usually on air france I've been offered a glass of champagne before dinner, wine with dinner, and a digestif after dinner. We were only offered wine this time!

It was not Air France but Air Europa. But confusion over our checked luggage. Whether it was checked all the way to Tenerife or not. It was not. Had to line up again in Departures. At least our Sky Priority was honoured. Flight was fine.

My wife and I had a row to ourselves after moving seats. There were no TVs and you had to buy food. So we did nothing but had a quick nap. Flight was fine.

Love thiscsirlibe. So civilized and kind. Good food. Good treatment. On time. Excellent communication.

Online check in of SAS is very poor. Even the kiosks at London had system problems. Either it would print boarding tickets or luggage tags. Many other customers had problems . SAS staff was good and helped.

great crew, professional, funny, and great service. good condition plane too! great experience

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.

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.

The seats have no legroom. I was bruised on my knees for having them pressed up against the seat in front of me. Then I got food poisoning from the special meal I ordered. Pretty horrible all around.

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!

SAS is very good at service, the lounge was great, and flights were on time. Boarding is fast and efficient!

Very difficult to clearly hear the dialogue on videos due to airplane engine sound. Flying to Copenhagen audio was very clear. Food was excellent. Returning flight--Lunch and breakfast food was the worst I've experienced. Audio was terrible. Why the difference?

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.

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.

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

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

Everything you need to know for your flight from Helsinki to Boston

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