BOS - HEL

$171 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 10/14. 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

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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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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

Sat, Oct 4 - Thu, Feb 26
Finnair Logo
6:29 pm - 2:00 pmBOS-HEL
12h 31m1 stop
Finnair Logo
4:50 pm - 10:49 pmHEL-BOS
12h 59m1 stop
$332Finnair
Find Deal
Wed, Dec 3 - Tue, Dec 9
Finnair Logo
7:25 pm - 1:55 pmBOS-HEL
11h 30m1 stop
Finnair Logo
4:50 pm - 10:45 pmHEL-BOS
12h 55m1 stop
$362Finnair
Find Deal
Fri, Aug 22 - Thu, Sep 4
Icelandair Logo
12:35 pm - 2:00 pmBOS-HEL
18h 25m1 stop
Icelandair Logo
3:00 pm - 6:50 pmHEL-BOS
10h 50m1 stop
$365Icelandair
Find Deal
Sat, Nov 8 - Sat, Nov 22
Icelandair Logo
11:35 am - 12:55 pmBOS-HEL
18h 20m1 stop
Icelandair Logo
1:55 pm - 5:45 pmHEL-BOS
10h 50m1 stop
$368Icelandair
Find Deal
Sun, Nov 30 - Sun, Dec 7
Scandinavian Airlines Logo
5:35 pm - 3:25 pmBOS-HEL
14h 50m2 stops
Scandinavian Airlines Logo
6:15 am - 3:50 pmHEL-BOS
16h 35m1 stop
$372Scandinavian Airlines
Find Deal
Mon, Nov 3 - Mon, Nov 10
Scandinavian Airlines Logo
5:35 pm - 11:45 pmBOS-HEL
23h 10m2 stops
Scandinavian Airlines Logo
4:05 pm - 3:50 pmHEL-BOS
30h 45m1 stop
$390Scandinavian Airlines
Find Deal
Wed, Dec 3 - Tue, Dec 16
Lufthansa Logo
8:40 pm - 6:40 pmBOS-HEL
15h 00m1 stop
Lufthansa Logo
12:45 pm - 6:35 pmHEL-BOS
12h 50m1 stop
$393Lufthansa
Find Deal
Tue, Aug 26 - Wed, Sep 3
American Airlines Logo
12:54 pm - 2:00 pmBOS-HEL
18h 06m1 stop
American Airlines Logo
12:35 pm - 11:42 pmHEL-BOS
18h 07m1 stop
$442American Airlines
Find Deal
Fri, Sep 5 - Fri, Sep 12
Lufthansa Logo
8:05 pm - 11:50 pmBOS-HEL
20h 45m1 stop
Lufthansa Logo
12:40 pm - 5:40 pmHEL-BOS
12h 00m1 stop
$443Lufthansa
Find Deal
Tue, Aug 26 - Wed, Sep 3
American Airlines Logo
5:59 pm - 2:00 pmBOS-HEL
13h 01m1 stop
American Airlines Logo
12:35 pm - 9:54 pmHEL-BOS
16h 19m1 stop
$447American Airlines
Find Deal
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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 $828 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$171
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 $171 for a one-way ticket and $332 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 oneworld 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 Finnair?

    The two airlines most popular with KAYAK users for flights from Boston to Helsinki are Delta and Finnair. With an average price for the route of $741 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 $628 and an overall rating of 7.6.

  • 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.
7.6
FinnairOverall score based on 1316 reviews
7.6Boarding
8.1Crew
7.5Comfort
6.9Entertainment
6.7Food
Airline reviews

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

6.0 GoodAnonymous, Jul 2025HEL - DFW
Read more Finnair reviews

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.

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.

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 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?

Great experience. Typically do klm to Amsterdam but may start taking this flight in future - greatxexperience.

The food was wonderful! The blankets and pillows were a nice touch and the staff were very accommodating, making frequent rounds to offer food, drink, etc. We were also told in advance when to expect meals to arrive, which is thoughtful. I liked the early notification about the lack of headphones as well, although unfortunately I'm not sure we received on for the first leg of the trip, which would have been nice to prepare for. The seats are a bit tight, and the bright monitors on the wall were on during an overnight trip, making it difficult to sleep for those close to them. .

The check in not ok! Demanding that we check our carry ons on check in! When there was plenty of available space inside the plane! And the staff at check- in was rude and not helpful and I was traveling with my autistic son and his service dog! Boarding was easy since we were priority boarding! The crew was ok expect from one guy flight attendant that was actually great!

Crew was unresponsive to request for a soda. Food was horrible and I’d venture to guess many others thought so as well by the amount that they trashed. Made me sick to my stomach and ended up in bed the remainder of the day once we arrived. Screaming child for 3/4 of the almost 8 hour flight. Crew had no headphones whatsoever for free or purchase. Seating way too tight and we upgraded our seats. I do not see us ever flying this airline again.

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.

Travelling coach, comfort is all in one's perspective. Movie choices were great. Food was OK. Flight crew were pleasant. Tip: If they come through asking if you want tea or coffee, do not ask for water. They get miffed. So use the call button after they pass through.

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.

Overall very good, only complaint I have is the crew from CLT to SAT could have collected trash sooner.

The AA app really sucks ... Every flight & connecting flights were delayed over 30 mins. One connecting flight on American Eagle said it was delayed in its arrival ... when it was actually parked across from the gate for over 1 hr before they pulled it to the gate. Seats in the economy/ main cabin are packed together like sardines ... no leg room.

Initial flight was cancelled at the time of arrival to the airport, flight alternative requires switching from direct to flight with a layover, and the plane felt like it would split apart, it was so rattle-y.

Amazing food, great staff, with one noticable detail missing ...but no seat entertainment in any of aircraft ...I am not a fan

Flight was delayed again and again ultimately almost three hours getting us to our location at close to midnight by the time we got in and out of airport to destination. I had taken time off work to enjoy an evening at destination and that was now wasted

AA re-routed flight from HNL to LAX due to delay. My group of 3 with reserved seats in row 9 was broken up, with one assigned to a middle seat, another in the last row of the plane. Not happy. No explanation to the delay. No apologies. No compensation. Would have been nice to be offered an Admiral Club admission or a voucher for the extra 3 hours of layover in LAX. Could not hear the boarding gate announcements in LAX. Adjacent gate was boarding at the same time. Loud speakers were competing against each other. Barely made my boarding group.

Boarding gate in Honolulu was staffed with a great clerk with a soothing voice despite the flight delay of over an hour. Flight attendants in the plane were all grumpy, not pleasant looking bunch. Their sour attitude showed throughout the flight. Inly able to get a select few movies started. Most of the movie links in the “free entertainment” did not work.

Above and beyond effort from this crew in a tough situation. So helpful and understanding. Thank you!

The flight delay in Dallas created a domino effect that impacted all of the connecting flights. It also increased the number of connections. I missed my flight from Casablanca to Marrakech because of the tight turnaround when landing in Casablanca. . CMN airport was understaffed. Only one person could help while other employees were just watching him. It was an extremely frustrating situation. People were crying and slamming their palms on the counter when speaking to the customer service provider, Allabough (man’s name?). Allabough couldn’t change my flight in the system. simultaneously, I was on the call with America. Airlines customer service rep named Solomon that said he couldn’t change it either. So, I took a ONYA voyages train to from Casablanca to Marrakech to get there on Friday June 26. This was unpredictable trip.

The flight delay in Dallas created a domino effect that impacted all connecting flights, leading to an increase in the number of connections. As a result, I missed my flight from Casablanca to Marrakech due to the tight turnaround when landing in Casablanca. CMN Airport was understaffed; only one employee was available to assist passengers while others just stood by and watched. It was an extremely frustrating situation. Many passengers were crying and banging their hands on the counter while talking to customer service representative Allabough. Unfortunately, Allabough couldn’t change my flight in the system. At the same time, I was on the phone with an American Airlines customer service representative named Solomon, who said he couldn’t make the change either. So, I decided to take an ONYA Voyages train from Casablanca to Marrakech to reach my destination on Friday, June 26. It turned out to be an unpredictable trip.

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.

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.

We were charged for luggage, and our ticket was with Lufthansa and was supposed to include luggage fees. So our experience was a bit bad. Also, the flight was about 45 minutes late arriving.

Flight was great only departure was delayed to saome ground crew issues

It was freezing. I asked crew member for a blanket and was told it might be in front of plane but I never got one. I turned off all the vents but still froze.

Cheapest airlines I have ever been on. I got downgraded and never got on united. I got rerouted through Vancouver onto jetwesf

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

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