BOS - HEL

$260 Find Cheap Flights from Boston to Helsinki - Compare and Save

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Boston to Helsinki departing on 12/2. 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, 0 bags

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Everything you should know

Cheapest round-trip
$424
Typical prices: $411-$598
Scandinavian Airlines
Wed 9/9Sat 9/19
BOS - HEL • 2 stops
Cheapest one-way
$260
Typical prices: $240-$493
Icelandair
Wed 12/2
BOS - HEL • 1 stop
Top airlines
Cheapest • from $424 (round-trip)
Best reviews • 7.8 score
Airline reviews
Airline reviews
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Nonstop flights
Not available
There are currently no direct flights between Boston and Helsinki. You'll need at least 1 connection.
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Top layover airports
Cheapest • Avg $416 (round-trip)
Shortest trip • 10h 22m (one-way)
Insights
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When to book
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 28% compared to booking last minute.
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When to travel
Cheapest • 35% price drop
Most popular
Good to know
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Booking Insights
Flight Deals

Cheap Flights from Boston to Helsinki (BOS-HEL)

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

Wed, Sep 9 - Sat, Sep 19
Scandinavian Airlines Logo
5:40 pm - 12:55 pm
BOS
-
HEL
12h 15m
2 stops
Scandinavian Airlines Logo
7:15 am - 3:35 pm
HEL
-
BOS
15h 20m
2 stops
$424Scandinavian Airlines
Wed, Sep 9 - Sat, Sep 19
Scandinavian Airlines Logo
5:40 pm - 3:20 pm
BOS
-
HEL
14h 40m
1 stop
Scandinavian Airlines Logo
9:05 pm - 3:35 pm
HEL
-
BOS
25h 30m
1 stop
$425Scandinavian Airlines
Sun, Oct 18 - Sat, Oct 31
Icelandair Logo
11:00 pm - 2:00 pm
BOS
-
HEL
32h 00m
1 stop
Icelandair Logo
2:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$441Icelandair
Mon, Aug 24 - Mon, Aug 31
Lufthansa Logo
8:05 pm - 6:55 pm
BOS
-
HEL
15h 50m
1 stop
Lufthansa Logo
7:40 pm - 5:40 pm
HEL
-
BOS
29h 00m
1 stop
$444Lufthansa
Wed, Oct 21 - Wed, Oct 28
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
2:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$445Icelandair
Tue, Aug 4 - Thu, Aug 20
Icelandair Logo
11:00 pm - 2:00 pm
BOS
-
HEL
32h 00m
1 stop
Icelandair Logo
3:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$447Icelandair
Sat, Dec 5 - Sat, Dec 12
Scandinavian Airlines Logo
5:35 pm - 10:35 am
BOS
-
HEL
10h 00m
1 stop
Scandinavian Airlines Logo
5:25 pm - 3:40 pm
HEL
-
BOS
29h 15m
2 stops
$449Scandinavian Airlines
Tue, Aug 4 - Mon, Aug 10
Icelandair Logo
11:00 pm - 2:00 pm
BOS
-
HEL
32h 00m
1 stop
Icelandair Logo
11:30 pm - 9:45 pm
HEL
-
BOS
29h 15m
1 stop
$453Icelandair
Sat, Oct 24 - Mon, Oct 26
Scandinavian Airlines Logo
5:50 pm - 11:35 am
BOS
-
HEL
10h 45m
1 stop
Scandinavian Airlines Logo
9:00 pm - 4:40 pm
HEL
-
BOS
25h 40m
1 stop
$457Scandinavian Airlines
Fri, Oct 23 - Thu, Oct 29
Scandinavian Airlines Logo
5:50 pm - 10:35 am
BOS
-
HEL
9h 45m
1 stop
Scandinavian Airlines Logo
6:15 am - 4:40 pm
HEL
-
BOS
16h 25m
1 stop
$461Scandinavian Airlines
Booking Insights

KAYAK's insights & trends for Boston to Helsinki flights

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Boston to Helsinki departing in September.

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

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Boston 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 Boston to Helsinki is December, where tickets cost $380 (return) on average. On the other hand, the most expensive months are June and May, where the average cost of round-trip tickets is $961 and $913 respectively.

How far in advance should I book a flight from Boston 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 Boston 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 Boston to Helsinki, you should book around 4 weeks before departure, which saves you about 28% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 9 weeks before departure.

Good to know

Low season

January

Cheapest flight

$260
Best time to beat the crowds with an average 19% drop in price.
Most popular time to fly and prices are also 36% lower on average.
Flight from Boston to Helsinki

When to book flights from Boston to Helsinki

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

  • Which airlines provide services for families flying with kids from Boston to Helsinki?

    If you are flying to Helsinki from Boston with your kids, consider booking flights with Brussels Airlines. The airline provides bassinets for free as long as you book early. Furthermore, the airline also transports pushchairs and foldable buggies free of charge.

  • What transport options are from Helsinki Airport to the city center?

    Passengers arriving in Helsinki from Boston can get to the city center and other neighborhoods by bus, rail, or taxi. Helsinki Regional Transport Authority operates buses via bus line 600 to significant hotels and Helsinki Central railway station. Commuter rail lines I and P run to Helsinki Central Stations via Huopahlati and Tikkurila. Taxis are outside Terminals 1 and 2.

  • Which airlines allow pets on board from Boston to Helsinki?

    Passengers with pets can book flights from Boston to Helsinki with JetBlue. JetBlue accepts small dogs and cats in a carrier whose measurements do not exceed 17 x 12.5 x 8.5 inches. The combined weight of the carrier and the pet should be 20 lb at most. Pets constitute your personal item. Helsinki will grant entry to pets with a pet passport and a microchip for identification.

  • Which airlines from Boston to Helsinki are sustainable?

    Passengers flying from Boston to Helsinki release 7,945 lb of carbon each. Some eco-savvy airlines flying this route include Scandinavian Airlines, Delta Air Lines, Icelandair, and JetBlue. Scandinavian Airlines' green initiatives include investing in energy-efficient aircraft. Delta has reduced in-flight single-use plastics, Icelandair has embraced sustainable aviation fuels, while JetBlue has electric ground equipment and a recycling program for its in-flight waste.

  • What is the cheapest flight from Boston to Helsinki?

    In the last 5 days, the lowest price for a flight from Boston to Helsinki was $260 for a one-way ticket and $424 for a round-trip.

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

    A passport is required to fly from Boston to Helsinki.

  • Which airports will I be using when flying from Boston to Helsinki?

    Boston and Helsinki are both served by 1 main airport. You will leave Boston from Boston Logan Intl and will be arriving at Helsinki-Vantaa.

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

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

  • Which airline alliances offer flights from Boston to Helsinki?

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

  • What is the most popular layover when flying to Helsinki from Boston?

    Reykjavik is the most popular layover city among KAYAK users traveling from Boston to Helsinki.

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

    The two airlines most popular with KAYAK users for flights from Boston to Helsinki are Delta and KLM. With an average price for the route of $827 and an overall rating of 7.8, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $874 and an overall rating of 7.8.

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

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

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Helsinki from Boston 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 Boston 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 Boston with another airline. Booking your flights between Boston and HEL 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 Boston 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 Boston up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Boston to Helsinki

  • Consider booking flights with Finnair on flights from Boston to Helsinki. Helsinki Airport (HEL) is a hub for Finnair, and you can easily connect to other destinations from HEL when you fly with the carrier. Additionally, you can access the airline’s lounges at HEL. Finnair operates from Terminal 2.
  • Minors can fly from Boston to Helsinki alone with Scandinavian Airlines. The airline has an Unaccompanied Minors service that is mandatory for children aged five to 12. Parents whose kids are aged 12 to 15 can also request the service. Children are escorted throughout all airport processes until they are brought to the pickup guardian.
  • US citizens from Boston can enter Helsinki without a visa for a stay of three months within a six-month duration. You can obtain a visa online or with a local Finnish service if you plan to stay longer. You also need a valid passport to fly from Boston to Helsinki.
  • If you are flying with American Airlines from Boston to Helsinki, your personal item should be 18 x 14 x 8 inches at most, while your carry-on should be 22 x 14 x 9 inches, including wheels and handles. The carry-on should not exceed 70 lb, and there is a charge for carry-ons weighing 51 to 70 lb.
  • Air Canada provides accessible services for limited-mobility passengers on flights from Boston to Helsinki. You can request wheelchair services while reserving your flights or at least 48 hours before your flight. Some of the accessibility services provided by Air Canada include assistance with boarding and deplaning, pre-boarding for passengers with disabilities, assistance with stowing and retrieving carry-on items, wheelchair assistance, accessible lavatories on select aircraft, and the option to bring mobility aids and medical devices on board.

Reviews of the top 5 airlines serving from Boston to Helsinki

 
See real verified KAYAK customer reviews for airlines flying from Boston 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 Boston 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.
7.8
DeltaOverall score based on 8479 reviews
8.1Boarding
7.8Comfort
8.5Crew
7.8Entertainment
7.2Food
Airline reviews

Very good seat and service. No complaints about the food. Take off delayed due to airport traffic

10.0 ExcellentSandra, Jul 2026
BOS - BCN
Read more Delta reviews

Very good seat and service. No complaints about the food. Take off delayed due to airport traffic

It is usually very pleasant. Good service for the price, international flights are even better

Flight attendant was very poor in taking care or showing attention. I slept up front for a few and missed the snacks. She saw me many times, went by me many times and never once asked if I needed anything. The whole 2 hours flight. And this is to a Diamond member in first.

I thought the service was very nice and pleasant. There were no hiccups and no issues so overall a good experience.

It was a pleasant surprise to have complimentary Wi-Fi on the flight

Flight was delayed, we could have been notified earlier and in a consistent manner. App was not refreshing for another passenger to get the latest flight status. We could have stayed and waited at the hotel instead of waiting at the airport had we known the flight was going to delayed for more than 5 hours. The toilet is too tight, and needs to be cleaned more frequently (every hour). The entertainment screen froze, the touch screen not responding to touch. We were upgraded to comfort, it is more comfortable than regular economy seats.

The baggage belt was not updated on the Delta App and was displayed on the wrong belt board. Was not expecting this to happen.

The plan was delayed and left DC 90 minutes late. However, it showed a 20 minute delay on the delta app, then a 12 min delay. It turned out to be an hour delay. I found out where the plane was with flightaware. Stop keeping customers in the dark about what is going on.

Pilots lied about waiting on “paperwork”. Sat in the plane for over an hour, waiting on some papers to be printed according to the pilot and then all of a sudden he says good news maintenance is finally on their way. Maybe they can fix it before we get our paperwork. Ended up missing my connection in LaGuardia and as a result, had a fly home to Lexington instead of the Louisville airport. Then paid $100 to uber to Louisville since it was midnight by the time I got in. I wish they would just be transparent with passengers sometimes and not try to beat around the bush on why things are delayed.

One of the flight attendants was a little cranky. I appreciated the free wifi and plug to charge my laptop

The seats are very uncomfortable. They never have tomato juice. Usually late

Finnair was not able to get our luggage on a connecting flight and there was a substantial delay of two days to obtain our lugguage. They did not communicate well, and we had to travel a significant distance to finally get our luggage. It has been a very negative experience.

On a more than 8 hours flight was only one meal included, which I have never experienced before. Always two meals on the overseas flight. It was very weird.

Business seating is soooo uncomfortable. You can sit straight up or lay down. You need pillows behind you because the back doesn’t lay down. Those are need to “prop” you up. The chair has no padding whatsoever. Food was gross. I’ve eaten on Finnair before and the food was exceptional. This time it gave 2 people in our party diarrhea. It was the chicken dish. I took 2 bites and didn’t eat anything more. The flight attendants were nice. You needed an additional lounge in Terminal D at DFW Airport. After waiting 40 minutes to enter, we finally gave up and went to a bar across from the club doors. I’m unsure if I’ll ever book a Finnair flight again.

It was a good flight, very comfortable seats for sleeping in business class. Probably the most comfortable business class seat I've ever had (20+ times in business class on various airlines). Service was good, but the only downside is my screen didn't work and it had to be reset multiple times to get it to shut off. I had to block my eyes because the screen was white almost the entire flight and I wore an eye mask when I slept. But when eating and reading in my seat, my eyes hurt because the only way to turn the screen off was reset it and the screen would only be off for a few minutes at a time.

Everything was wonderful! AirBus seats are more comfortable to sleep in as compared to the Boeing planes.

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

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

The entertainment offerings were not as good as I would have expected, but the service was very good, the crew helpful, and the flight on time! A very pleasant experience overall.

flight was excellent. The crew was very helpful. Finnair made this 10 hour flight flyby. The entertainment screens on every seat really help save the battery life of your personal devices. We were served dinner and even a light breakfast, both of which were tasty. The crew even did all they could to help one group of passengers with their child, as to keep them comfortable during the flight.

The crew was amazing. Our seats was not very clean and even that was not a full flight but our seats was right beside the WC which did not let us to have a moment of rest.

Excellent service, and came on time! Thank you for your dinner that was chicken with salat/, and 🍰 it was good quality food , the breakfast was very good with good cheese , butter,etc and the tea was very good quality. The space where I was seat was nice so I could stretch my legs. I dit not have the bread as I am in a keto died. Have great time everyone in Scandinavia airline.

Cancelled my flight. Only option had a layover in Italy. No compensation for the 4 extra hours of travel time. The travel agency, cheapflightfares, blamed Scandinavian airlines and said there was nothing they could do. Scandinavian airlines said since it was booked through a travel agency there was nothing they could do. The entire thing was incredibly frustrating. Never booking through kayak or with Scandinavian again.

The seats were really cramped. The high backs on the chairs made you feel claustrophobic.

Flight delayed 3 hours 45 minutes. Connecting flight changed. Would have missed cruise ship. Had to cancel return flight, because we couldn't just cancel flight to Nice.

First off, numerous things were misrepresented. When we purchased the Economy Plus tickets the fare allegedly includes access to lounge. At Logan Airport where the signs points to, there is no longer SAS lounge. We were directed to Delta lounge, which is located at the other end of the terminal. When we got there, Delta reps told us that it is for SAS business class passengers only. The advertised seat selection 30 hrs prior to departure did not work online. When I called SAS, they told me that it was more than 30 hrs before our connecting flight in Copenhagen, although it was less than 30 hrs before the departure for Copenhagen. Customer service representatives would not provide any assistance. The tray table in my seat was not fully unfolding to be able to place the food tray on it. Therefore, I had to keep it on my laps.

Everything went very smoothly. My only complaint is how cramped the seats are for an international flight.

They were charging $$$ for first glass of wine. That first glass should be included in such a high price.

Good could have been better. Comfort was fine with decent leg room and seat comfort. Would have appreciated a USB-C charger port.

TERRIBLE! Staff was unfriendly, rude, and demeaning. One flight attendant touched me to grab the complimentary blanket off my neck because I couldn't take it home, while a bunch of other people took theirs home. I have never been so ill treated. I am not happy at all. And flight was delayed, no information until short notice for everything. Lost an entire day at my destination. I expect a full refund for that experience. Never will fly with them EVER again

Finnair is a really good airline! We specifically looked for them on this trip. On time, great crew, and overall great experience.

Because I bought my ticket from Underpricer, I could not check in online. I could only check in at the airport and that was deeply frustrating because I had to arrive very early. The flight also departed 45 min late and passengers were given no explanations about why we were delayed. I was worried I would miss my connecting flight. Once on board, however, the flight was fine.

Terrible boarding and first class experience. Nice staff but overall disorganized, dirty plane.

The flight was delayed significantly and we sat on runway after landing for awhile. Best thing was the flight attendant, Jenny, in first class, who was very professional and attentive. She was excellent - the rest of the flight was not.

Early departure meant on time arrival. Only real problem was free internet had issues, although chatting with the internet help desk (you can do this via aainflight.com) got the issue resolved.

The staff and service on American Airlines were truly outstanding. I had requested wheelchair assistance for my mother due to her knee issues, and the team went above and beyond every step of the way—from boarding in Boston to our arrival in Chicago. Their care, professionalism, and attentiveness made the entire experience smooth and stress-free. I’m very grateful for the support they provided.

Found that the plane used for this short flight is smaller and therefore the seats are really squeezed tight.

Tv screens and movie selection v good. Friendly staff. They were really worried about max capacity and room for carryons. That is never fun but i had no problem finding space when I boarded.

It was spectacular. I had basic Economy and was given so much space and their seats lean back so far. Staff was superb, food was superb, everything was superb, Finnair is Fantastic.

Awful customer service on the phone. No phone number on the website to call a real person. Website says changes are no charge but this is a lie. I had a cheaper ticket through Kayak therefore Finnair wouldn’t change it unless I would pay the entire fare again. I begged but their agents at the airport were rude and the online chat person cut off the call with no help. Super disappointed. Wont fly this airline again and will tell everyone I meet how bad it is. Crew on the flight was nice but otherwise huge disappointment.

On-time arrivals and departures. Crew helpful and friendly. Yet everything costs extra: seat selection, food, even airphones!

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

There was no lounge at Boston for us to use. Typically flying first class overseas comes with lounge privileges. The seats did not recline even a little. My headset only worked on one side. I felt like I was flying on Ryan Air, not Icelandic Air.

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.

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

Everything was great! My only critique is 25 euro for wifi is wild, but I get it

Staff in flight and at the airport were very helpful. A short time between flights made it stressful to get to the connecting flight and we probably would not have made it without the staff’s help.

I liked how easy my transfers between flights in Keflavik were. I would have appreciated more food options in Keflavik.

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

Information on your arrival and departure airports