BOS - HEL

$166 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 3/8. 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

KAYAK searches hundreds of travel sites at once for deals on flights to Helsinki

 
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.
Travelers love KAYAK
41,299,237 searches in the past 7 days on KAYAK

Save 23% or moreCompare multiple travel sites with one search.

Track pricesNot ready to book? Create a price alert for when prices drop.

Bundle and saveSave money when you bundle your flight + hotel.

Filter your dealsChoose cabin class, free Wi-Fi and more.

Everything you should know

Cheapest round-trip
$366
Overall average: $516
Icelandair
Tue 3/10Wed 3/18
BOS - HEL • 1 stop
Cheapest one-way
$166
Typical prices: $272-$449
Icelandair
Sun 3/8
BOS - HEL • 1 stop
Top airlines
Icelandair
Cheapest • from $366 (round-trip)
Finnair
Best reviews • 7.6 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Not available
There are currently no direct flights between Boston and Helsinki. You'll need at least 1 connection.
Insights
Insights
Insights
Insights
Top layover airports
Paris (CDG)
Cheapest • Avg $567 (round-trip)
Reykjavik (KEF)
Shortest trip • 10h 24m (one-way)
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 18% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
December
Cheapest • 31% price drop
December
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Helsinki!
Flight Deals
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

Tue, Mar 10 - Wed, Mar 18
Icelandair Logo
8:50 pm - 12:55 pm
BOS
-
HEL
10h 05m
1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m
1 stop
$366Icelandair
Thu, Mar 19 - Wed, Apr 1
Icelandair Logo
12:35 pm - 12:55 pm
BOS
-
HEL
18h 20m
1 stop
Icelandair Logo
3:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$368Icelandair
Wed, Apr 22 - Sun, May 3
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$371Icelandair
Sun, Apr 5 - Sun, Apr 12
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
$375Icelandair
Wed, May 6 - Mon, May 11
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
3:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$378Icelandair
Tue, May 5 - Wed, May 20
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$382Icelandair
Wed, Apr 22 - Fri, May 8
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
3:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$398Icelandair
Mon, Apr 20 - Tue, May 5
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
3:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$401Icelandair
Sun, Apr 19 - Sat, May 2
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
$403Icelandair
Tue, Apr 21 - Tue, May 5
Multiple Airlines Logo
8:50 pm - 6:20 pm
BOS
-
HEL
14h 30m
2 stops
Multiple Airlines Logo
8:30 am - 6:50 pm
HEL
-
BOS
17h 20m
2 stops
$412Multiple 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.

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 $379 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $814 and $813 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 3 weeks before departure, which saves you about 18% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonJanuary
Cheapest flight$166
Best time to beat the crowds with an average 26% drop in price.
Most popular time to fly and prices are also 32% 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 $166 for a one-way ticket and $366 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 $799 and an overall rating of 7.9, Delta is the most popular choice. KLM is also a great choice for the route, with an average price of $751 and an overall rating of 7.7.

  • 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 1365 reviews
8.2Crew
6.9Entertainment
7.7Boarding
6.7Food
7.4Comfort
Airline reviews

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.

2.0 MediocreTerri, Feb 2026
DFW - HEL
Read more Finnair reviews

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.

Very good seat, very comfortable, good food, and good service.

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.

All reviews good because...flight from BWI to London ,economy seats was miserable. I usually book 1,step up from economy but this would have added 1500 bucks 1 way. Bit the bullet and upgraded for retun flight, otherwise all ratings would have been rock bottom.

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.

Fantastic. The only thing - out of my six luggage one was lost in Copenhagen, however it was delivered Home 3 Days later so all great..

The crew was friendly, the flight was pleasant. Thank you for your service!

Our trip plan from Kayak stated we were flying SAS. That was not true. The first leg was a Delta flight. We wasted 25 minutes before finding out to check in with the correct airline. Then our SAS flight for the second leg arrived 25 minutes late, and our third leg flight with SAS closed the gate knowing the flight delay was SAS’s fault, and that this flight would only be backed up 5 minutes. The final kicker was that between Delta and SAS, they lost all our checked luggage.

Flight was completely full January 9th? I problem i had the stewardess was bumping into me constantly walking by? very annoying.. on Austrian air I dint have this issue at all...

Amazing! Everyone was so nice and the food was so good!!

Terrible customer service. The flight attendants were rude. We experienced significant turbulence for a large portion of the flight and there was very little check in from the flight deck. The space was extremely limited to the point where it felt like torture. Never again

I was surprised how good an American airline can be - I was really impressed.

Excellent service throughout. Airport process is quick and easy. Very courteous staff. Great service in the plane! Just outstanding punctuality and service overall!!

I have paid for extra legroom on my flight. My seat was broken and did not recline. The crew could not fix it and refused to provide me with another seat

Over all experience was good. However the connection time was too short at CPG. We missed our connecting flight to AMS as the passport control line was too long and by the time we got our passport control done it was too late I wish there were some SAS staff to help us out at the passport control center Though they put us in a KLM flight from CPG to AMS, That flight was also delayed by over two hours

Never ontime and always delays. Long waits for customer service and often app doesn’t work

Arriving plane went to wrong gate. Flight Attendant was late. Was in no Hurry when he arrived. Flight was fine. Plane had to wait 20 minutes to get assigned a gate due to designated gate tied up. barely connected.. Boarded extremely late on final leg of trip.

We arrived 25 minutes early only to be told our gate was occupied and so we sat for close to 30 minutes to pull into a gate. That’s not an early arrival!

Experience was great. The best part is the free Wi-Fi connection which helps me to work on the flight

The gate agent had a really bad attitude and refused to help me get on the standby list. She just handed me a card and said I needed to call a number. I asked her to help with the AA app on my phone and she just shrugged and said she didnt know. After a few phone calls, I eventually just went to a different gate agent on the other side of the terminal and got the help I needed.

The TSA check in took 1.5 hours to get through in Austin and I missed my flights back to DC

As previously stated the delay I experienced flying from Wichita to Chicago caused a host of issues. When I finally was able to be booked on the last remaining American flight from Chicago to Cincinnati, the gate changed four times with the last change occurring very near the scheduled boarding time. While I didn't have a problem moving from gate to gate, I did notice and make note of others that had mobility issues and had to move each time for the gate change.

Overall, my last three trips on American Airlines have all been either delayed or "rescheduled" due to mechanical issues. At least on delay caused me to miss two possible connecting flights each later than the first. My last option for my last connection required the assistance of the onsite service desk (O'Hare Airport). The wait time for the service desk was such that it jeopardized getting booked on the last connecting flight available for the night. Suffice it to say, my latest experiences with American Airlines have caused me extensive loss of productive business and personal time and can therefore be classified as significantly less than satisfactory.

There was free WiFi (definitely a plus), but the flight was delayed 45 minutes waiting on a catering truck that never arrived. The pilot said there would be food vouchers given out at the end of the gangway to make up for the inconvenience, but there was no one offering those. Delay made me late for work!

Waiting for gate in RDU for more than 20mins is crazy.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

They wouldn’t check in my luggage even though I had one checked bag prepaid. So I took my bag to the gate and tried to check it in there and two employees scolded me for bringing a large bag to the gate. I told them I was trying to check it in and that it was prepaid, and they said they couldn’t guarantee that it would arrive at my destination but they finally let me drop it off when boarding the plane and pick it up right after exiting the plane. There was no food, and there was no entertainment.

The customer service was unbeatable from the wheelchair assist team to the flight attendants. The pilot also did an excellent job managing the turbulence.

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

Problems checking in both on the laptop and on the app. No free seating available at check-in as advertised - must pay for EVERY seat between $23 and $75. No way to cancel seat choice. App menus and site menus are not responsive, and some items are impossible to find. Crew and mobile assistance are friendly and helpful.

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

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

The boarding process seem to take longer than necessary, resulting in a 20+ minute delay

It was too cold in the plane my feet froze

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Terrible. Both flights were significantly delayed, no luggage, made me check my small bag when many, many others had much larger carry-ons, not even a bottle of water . . . I will not fly Discover Airlines again.

I was deceived on the Kayak site expecting a ticket, but instead finding a "standby" reservation. When I tried to change the ticket, I paid almost twice the price of the original ticket. Then, the airline refused to give me the reserved seat I had chosen and paid for. I think I deserve a refund for this leg of my trip because I was doubly charged and did not receive what I had paid for. I put in a complaint with Lufthansa because the ticket was sold originally sold as a flight they listed. Someone here needs to take responsibility.

Excellent service; they helped me reschedule so I can fly in an earlier flight

I had a good comfortable seat. There was nearly an hour delay. There was an accident with the champagne, but I was well compensated. These things happen sometimes.

Service and food were excellent. Incredibly friendly and competent staff. Flight was delayed over and hour and I had to run between terminals to get my connecting flight.

Missed it by a couple minutes and couldn’t find an alternative flight so had to spend the night in DC and after much shuffling from 1 airline to another managed to get a United to Frankfurt.

There were only 2 toilets and one of them did not work in business class. We are not allowed to cross classes so had to wait in line to use the toilets!! The entertainment touch display was finicky and did not work all the time.

We missed our flight. There was not enough time built into the layover to get through immigration, customs, bagclaim, bag rechecking, and the long trip to another terminal and gate. Kayak really screwed up. We took the bus up to Wisconsin and then were picked up in Brookfield by private car. It was lucky we didnt miss the last bus out.

I tried both on line and by calling the Customer Service line to arrange for a special meal as i have food intolerances. I was under the impression from your service representative that I was successful. I was not. I cannot eat spicy foods and get very ill if i eat bell peppers. I could not eat either menu choice and no special meal was actually ordered. ( your representative tried to order it for a flight that did not have meal service!!! - found this out later). Your wonderful cabin crew managed to put together a fruit, salad, roll and cheese tray for me so I had something to eat. WHY WOULD YOU SERVE SPICY FOOD, WITH NO MILDER OPTION,ON AN INTERNATIONAL FLIGHT???

Crew was professional and great, flight was clean. However food was pathetic. I ordered a Hindu meal assuming no meat but they served chicken. Need to be very specific- Hindu meal should be categorize as Vegetarian - no meat or egg. Or it should be specific that we are serving meat.

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

Information on your arrival and departure airports