BOS - HEL

$254 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 4/20. 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.
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Everything you should know

Cheapest round-trip
$380
Typical prices: $660-$386
Icelandair
Thu 4/23Thu 4/30
BOS - HEL • 1 stop
Cheapest one-way
$254
Typical prices: $331-$571
Multiple Airlines
Mon 4/20
BOS - HEL • 3 stops
Top airlines
Cheapest • from $380 (round-trip)
Best reviews • 7.7 score
Airline reviews
Airline reviews
+1
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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
Cheapest • Avg $567 (round-trip)
Shortest trip • 10h 21m (one-way)
Insights
Insights
Insights
Insights
When to book
in advance
Our data shows that travelers who book at least 5 weeks in advance save around 37% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
Cheapest • 31% price drop
Most popular
Good to know
Good to know
+1
+1
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Good to know
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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

Thu, Apr 23 - Thu, Apr 30
Icelandair Logo
11:00 pm - 2:00 pm
BOS
-
HEL
32h 00m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$380Icelandair
Thu, Apr 23 - Thu, Apr 30
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
$384Icelandair
Thu, Apr 23 - Wed, May 6
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
$400Icelandair
Wed, Sep 23 - Thu, Oct 1
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
$403Icelandair
Tue, Sep 1 - Sat, Sep 12
Icelandair Logo
11:00 pm - 11:20 pm
BOS
-
HEL
17h 20m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$406Icelandair
Mon, Aug 31 - Tue, Sep 15
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
7:10 am - 6:50 pm
HEL
-
BOS
18h 40m
1 stop
$410Icelandair
Tue, Sep 1 - Tue, Sep 15
Icelandair Logo
11:00 pm - 2:00 pm
BOS
-
HEL
32h 00m
1 stop
Icelandair Logo
7:10 am - 6:50 pm
HEL
-
BOS
18h 40m
1 stop
$412Icelandair
Mon, Apr 27 - Thu, May 14
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
$423Icelandair
Wed, Apr 29 - 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
$424Icelandair
Sun, Sep 20 - Thu, Oct 1
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
$425Icelandair
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 April.

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 June and July, where the average cost of round-trip tickets is $905 and $789 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, which saves you about 37% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonMay
Cheapest flight$254
Best time to beat the crowds but there is an average 21% increase in price.
Most popular time to fly and prices are also 31% 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 $254 for a one-way ticket and $380 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 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 $827 and an overall rating of 7.9, Delta is the most popular choice. Finnair is also a great choice for the route, with an average price of $411 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.
7.7
FinnairOverall score based on 1381 reviews
8.2Crew
6.7Food
7.5Comfort
6.9Entertainment
7.7Boarding
Airline reviews

Great if not for the boarding by bus at Heathrow terminal 3. Medieval disappointing time-consuming and very hard on handicapped flyers. It was awful

10.0 ExcellentFrancesca, Mar 2026
LHR - BOS
Read more Finnair reviews

Great if not for the boarding by bus at Heathrow terminal 3. Medieval disappointing time-consuming and very hard on handicapped flyers. It was awful

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.

The stewardess was incredibly rude. The gave you only one drink with dinner.

Cancelled flight, wasn't refunded paid selected seats. Poor customer service. Called airline and they didn't realize the flight was cancelled until several hours after the email notice was sent.

The worst with the trip was the space in economy, my knees are still hurting. There was no way to control personal air by turning a knob above you, it was way to hot on both rides. During the night flight they allowed 2 people from across the aile which was narrow to sit and talk for 7 hours while also using tablets and the flashlight from their phones pointing into the row where I sat at times. They allowed people with way too large baggage to bring onboard. I paid way too much for the ticket ($1,364} for economy. Kayak misinformed me to get cancellation insurance that was only valid for a very short time (less than 12 hours) and was over one hundred dollars. Hotel booking was incorrect, I had the room booked myself at the hotel, only double or larger rooms available which I paid over 400 dollars for. I will never fly with SAS again unless there is no other alternative.

Crew members were excellent. The seat wasn’t the best as well as a food options.

5 of my 7 pieces of luggage are missing and they cant call to find out where it is. I have to fill out a form and wait for them to mail it to me in several days (if they find it). That does not work for my travel itinerary. I need my full ticket cost refunded please.

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!!

THe flight was an hour late. You got us on the plan and we sat on the ground for 45 minutes with no information from the pilot whatsoever. Worst flight this year.

Boarding was quick and efficient. We arrived at our destination early.

I'm not sure American is capable of on-time arrivals and departures. When you land at ORD, you almost always get held on the tarmac because your gate is still occupied. I may have missed my connection, but that ended up up being significantly delayed as well. Once again, I finally got home well after midnight.

Same plane as RDU to LGA — internet not working. Pilot issue of some sort at end of prior flight - I was on same plane for my connection. Late/delayed —

Good flight, seated and had a water within 5 minutes. Crew was hospitable.

Message about flight cancelation was received late due to being in the air. No explanation, just canceled and booked on morning flight. We had to stay in the airport overnight because there was no transportation offered to get to the hotel that AA had available. Actual inflight was fine.

I didn't go from Reno to Phoenix I ended up going from Reno to Dallas to Tucson because my flight rebooked because my Amtrak was late I tried notifying you guys I also don't know what you ask me about my flight because you guys didn't book my flight

Delays experienced in boarding/take off due to incoming plane delayed. However, the boarding time/depart time in the app was significantly delayed in providing these updates. Usually not updated until an hour after we should have already boarded. Poorly managed.

Bag drop was very disorganized in Miami. All main cabin passengers were shunted to just a few lanes and they had an equal number of lanes for first class passengers but there was nobody on those lines. They did nothing to bring the main cab and passengers over to the open lines and they just had employees standing there and doing nothing

there are no options s for snack besides cookies would ve nice to have a salty option n

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. Lost our luggage for 4 days. Did not advise passengers there was a strike in Barcelona Airport and had zero personnel on hand at airport to advise passengers on where to go to file claims. We had to fend for ourselves. No assistance at all other than an online claims submission process that we had to find out about on our own.

Lufthansa cancelled our flight from Los Angeles to Naples Italy on March 10 for scheduled flight on March 12 Very stressful experience trying to arrange alternatives. Will never fly again with Lufthansa

Everything could have been better. What needed to be wrong with United went wrong

The staff was bit rude when I asked for an extra drink after one beer, asked for one wine glass.

Very good, i got two seats for myself, and was comfortable with the blanket i got

I hated the FRA Airport. Confusing signage, including the path to Immigration and Security It seems that the airport grew haphazardly over the years. I have been through multiple WW Hubs with much better experiences.

Economy Priority seats are extremely uncomfortable. There is no way to escape the boxed in feeling, particularely because the distance between to rows are too short, the hard edge of the front row is keeping legs confined. There is no elevated place to put your feet. I am of average, European size.

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

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

Information on your arrival and departure airports