BOS - HEL

$260 Find Cheap Flights from Boston 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 Boston to Helsinki departing on 9/22. 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

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These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Helsinki.
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Boston to Helsinki.
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Flights 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, Dec 3 - Tue, Dec 9
American Airlines Logo
2:24 pm - 1:55 pmBOS-HEL
16h 31m1 stop
American Airlines Logo
4:50 pm - 10:45 pmHEL-BOS
12h 55m1 stop
$361American Airlines
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Wed, Dec 3 - Tue, Dec 9
Icelandair Logo
8:00 pm - 1:00 pmBOS-HEL
10h 00m1 stop
Icelandair Logo
2:00 pm - 5:45 pmHEL-BOS
10h 45m1 stop
$367Icelandair
Find Deal
Tue, Aug 26 - Wed, Sep 3
Icelandair Logo
12:35 pm - 2:00 pmBOS-HEL
18h 25m1 stop
Icelandair Logo
3:00 pm - 11:35 amHEL-BOS
27h 35m1 stop
$380Icelandair
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Mon, Aug 18 - Wed, Aug 27
Finnair Logo
5:59 pm - 2:00 pmBOS-HEL
13h 01m1 stop
Finnair Logo
5:15 pm - 10:59 pmHEL-BOS
12h 44m1 stop
$436Finnair
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Tue, Sep 2 - Mon, Sep 8
Scandinavian Airlines Logo
5:40 pm - 4:55 pmBOS-HEL
16h 15m2 stops
Scandinavian Airlines Logo
9:20 pm - 3:35 pmHEL-BOS
25h 15m2 stops
$466Scandinavian Airlines
Find Deal
Mon, Sep 1 - Sun, Sep 7
Scandinavian Airlines Logo
5:40 pm - 12:05 amBOS-HEL
23h 25m1 stop
Scandinavian Airlines Logo
4:05 pm - 3:35 pmHEL-BOS
30h 30m1 stop
$472Scandinavian Airlines
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Wed, Dec 3 - Tue, Dec 9
American Airlines Logo
2:24 pm - 1:55 pmBOS-HEL
16h 31m1 stop
American Airlines Logo
12:30 pm - 11:05 pmHEL-BOS
17h 35m1 stop
$481American Airlines
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Sat, Aug 23 - Sat, Sep 6
Finnair Logo
5:59 pm - 2:00 pmBOS-HEL
13h 01m1 stop
Finnair Logo
5:15 pm - 10:50 pmHEL-BOS
12h 35m1 stop
$531Finnair
Find Deal
Sun, Jul 20 - Wed, Jul 30
Lufthansa Logo
8:05 pm - 11:50 pmBOS-HEL
20h 45m1 stop
Lufthansa Logo
6:10 am - 3:55 pmHEL-BOS
16h 45m1 stop
$647Lufthansa
Find Deal
Thu, Jul 24 - Tue, Aug 12
Lufthansa Logo
8:05 pm - 11:50 pmBOS-HEL
20h 45m1 stop
Lufthansa Logo
7:40 pm - 5:40 pmHEL-BOS
29h 00m1 stop
$650Lufthansa
Find Deal
Useful Info

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.

What’s the cheapest day of the week to fly from Boston to Helsinki?

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

If you are looking for a flight deal from Boston to Helsinki, look for departures on Tuesdays and avoid leaving on a Friday, as it's usually the priciest day. When flying back from Helsinki, Wednesday is the cheapest day to fly and Sunday is the most expensive.

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 November, where tickets cost $384 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $814 and $780 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 5 weeks before departure. For the absolute cheapest price, our data suggests you should book 13 weeks before departure.

Good to know

Low seasonOctober
High seasonNovember
Cheapest flight$260
Best time to beat the crowds with an average 17% drop in price.
Most popular time to fly and prices are also 33% 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 3 days, the lowest price for a flight from Boston to Helsinki was $260 for a one-way ticket and $361 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?

    oneworld, Star Alliance, and SkyTeam are the airline alliances operating flights between Boston and Helsinki, with SkyTeam 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 $766 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 $781 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.

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.
7.6
FinnairOverall score based on 1290 reviews
6.7Food
7.6Boarding
7.4Comfort
6.9Entertainment
8.1Crew
Airline reviews

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.

2.0 MediocreAnonymous, May 2025ORD - IND
Read more Finnair reviews

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.

Boarding uncomfortable. Stewardess said I would have to check my carry on as there was no room in the overhead bins. Another passenger helped me find a spot.

Any flight that lands safely is a good flight. However our leg from Helsinki was delayed 1 hour with no explanation. The delay would not allow us to make our connection to Cincinnati. I was informed by American Airlines that our Cincinnati flight was rescheduled for the following day. I immediately made a non refundable hotel reservation in Dallas. Upon exiting the plane at Dallas I was given a hotel voucher. Nice, but I can't get a refund on the hotel I booked. A little communication would have been helpful. Food on Finnair is below quality of Korean Air.

The cabin crew really looked like they wanted to be somewhere else. They weren't really interested in providing an attentive service to full fare paying passengers at all. However the Captiain's in flight announcements were relaxed and very entertaining.

Crew were professional and responsive. Food was mediocre and breakfast could do with revampinmg

Food was very ordinary for premium economy, very small portions.

i dont know WHY they call it business class. the seats are NOT significantly wider than economy seats, they just do not let the middle seats be beepked to give the illusion of more space between passengers. the seats do NOT recline any more than economy seats either. the only real difference is the full meal served to business (vs none for economy). I would rather have a wider, lie flat ACTUAL business class seat with no food for a 3 hr flight. this was pretty disappointing to say the least.

There wore nice leather like sits, in my opinion seats lay out bit tight . Crew was great they did averything possible to make averywone comfortable as possible, food was, think worst I ever head on flight, head chicken and yellow rice. Ice cream was a nic treat.

Our previous flight was delayed but they waited for us to board.

Standard short hop flight. No food, no entertainment. Just get in, get something to drink, and try to be as comfortable as you can for an hour.

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.

Would be nice if the front toilets could be used by everyone.

Very helpful in getting us off the plane first to make a tight connection.

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

Boarding was chaotic and the flight left late but arrived at a decent time. This may have been because of the sxsw festival that was going on.

The flight got canceled and you just send an email in the middle of the night and no solution to how to get on the next flight or provide other solutions.

You cost me my time and did not compensate properly. Gfy.

Missed a connecting flight and SAS was at fault. I was awarded a $20 voucher in exchange for 8 hours of my time? Gfy.

Seat was lumpier than I’ve ever remembered it to be although comfortable when tilted back. I don’t recall being that hungry after being served food from SAS before. Flight attendant on the second flight to Aalborg seemed to be having a bad day.

It was one of my worst flight ever. First they were changing the gate for at least 4 times, changing from gate D7 to D12 to D44. Considering the size of the Miami Airport, we are talking about long distance and the train at the airport was not working. Then the flight was delayed around one hour. Then finally we boarded into the plane and when everybody was seated, there was an announcement that there is an issue with one of the tire of the plane, so we all had to get out of the plane with our belongings, to replace the tire. So we had around 2.5-hour delay

Most miserable flight ever. We waited almost 2 hours on the runway because the flight was oversold. American offered $1200 credit. Then there was some nonsense about weight distribution. Ridiculous. No food for 8 plus hours on the flight. I will be writing a letter.

Honestly, I haven’t flown American in years, probably due to the pandemic and my being unable to travel for certain periods in the last two years, but it was a good experience to dig out or obtain a new American Airlines account after many years of traveling for business with American in the past.

The plane was probably full boarding was easy. We were able to check our carry-on luggage for free. It was a return flight through Philly to LA. Never saw a stewardess do a demonstration of emergency Procedures. I think my flight was pretty full

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious.

Plane, flight, crew, captain were all great. The first flight had a Chipotle box lunch...delicious. this return flight not as tasty, but filling.

The flight was 2 hour delayed, otherwise everything was excellent. The delay was due to the hourly limit requirement so given that as a reason, I'm happy with the flight!

Weather delay for 2.5 hours followed by half hour crew delay, did not have ginger ale, uncomfortable seats

Flight was full, and would have preferred an aisle seat, but due to getting a late ticket ,the seat I had was adequate. The flight crew were very help full and hard working. Food and drink were excellent for the 11hr flight. Overall I was pleased with flight, and would recommend British Airways again.

So awful Unreliable Unfriendly Bad Mad Mean Smelly Hot Late Overbooked Understaffed Expensive Cramped Narcs If they were a fruit they’d be rotten durian

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

I had an exit row and so was Comfortable on the long flight.

The seats on this airline are sooo small, even for a petite person. I felt like the seat tilted forward and I was fighting to stay in it. The lavatory is horribly small, with a wet floor because the sink is so small you can't help but splash the water all over when washing up.

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

Only serving 2 small coffee in 7.5 hrs flight with very limited choice to order food.

Booked with Kayak… Economy Class it said. I had filtered for 1 checked bag. Get to boarding and it says I have Economy Light w/ no checked bags. $136 each way for baggage now. Do not use smartfares.com. Very misleading and a terrible start to this trip.

Flight was 1.5 hours late to depart so changed flights to Swiss Air.

The United Airlines crew that operated this flight was subpar. They didn’t

Very small and uncomfortable seats, Hard to hear entertainment system sound. Horrible food. Staff doesn't care much about the passengers. 2nd time they didn't give me my vegetarian meal. They asked me regular food with meat. The airline and staff was from United airlines.

Checkin took along timen only.few angents available at.checkin desk. Customer support over phone no existence

At baggage claim, I was given the wrong printed ticket. The ticket belonged to another passenger for a different flight — to Zurich instead of Frankfurt (layover). I was even allowed to pass security, and when I asked the Lufthansa employee if I was on the correct flight, and why it was changed. The employee said everything was correct and I should board. When I got on the plane, there was someone in my seat, and the crew on the plane finally realized that I was on the wrong plane. When I got off the plane, nobody was willing to help, and the security refused to provide my original printed ticket. That was until I showed them that I took a photo of the ticket; once they realized I had photographic evidence, they were suddenly ready to help me. The Lufthansa employee began communicating with other airlines and found a flight that would take me to my destination via Polish Airlines. I was required to once again go through security, re-check my bag, and once again pay for my checked bag and weight overage fees. This experience was incredibly stressful and very frustrating, as you can imagine. A Lufthansa employee told me I would be eligible for a refund. Please tell me what steps I need to take in order to make that happen. Thank you!

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.

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