HomeSearch by dateVacation packagesHotelsFlight dealsCar rentalTravel tips & news
Helsinki

$245+ Cheap flights from Boston (BOS) to Helsinki (HEL)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 3/21. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HEL
Dec 10 — Dec 171
Wed 12/10
Wed 12/17
1 adult, Economy
We work with more than 300 partners to bring you better travel deals

Find cheap flights from Boston to Helsinki with Cheapflights

1. Tell us where you want to go

Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”

2. Select your favorite providers

We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.

3. Compare prices and book

Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.

Cheapflights Tip: The best prices from Boston Logan Intl to Helsinki-Vantaa are usually found in December or November, booked 9 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

Find flight deals from Boston to Helsinki

Cheapest flights from Boston to Helsinki
Explore the most affordable flight options available from Boston to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on November 10, 2025.

This CrystalTravel deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:50 pmBOS - HEL
1 stop10h 05mIcelandair
Wed 12/101:55 pmHEL - BOS
1 stop10h 55mIcelandair
Deal found 11/9$358
This oojo deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/37:50 pmBOS - HEL
1 stop10h 05mIcelandair
Tue 12/91:55 pmHEL - BOS
1 stop10h 55mIcelandair
Deal found 11/9$363
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:25 pmBOS - HEL
1 stop13h 00mDelta
Tue 11/256:30 amHEL - BOS
1 stop14h 10mDelta
Deal found 11/9$366
This Delta deal was found by Cheapflights users on 11/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/31:05 pmBOS - HEL
2 stops17h 05mDelta
Wed 12/106:30 amHEL - BOS
1 stop16h 50mDelta
Deal found 11/10$383
This American Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/87:24 pmBOS - HEL
1 stop11h 31mAmerican Airlines
Mon 12/154:50 pmHEL - BOS
1 stop13h 04mAmerican Airlines
Deal found 11/8$412
This oojo deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/277:50 pmBOS - HEL
1 stop10h 05mIcelandair
Thu 12/41:55 pmHEL - BOS
1 stop10h 55mIcelandair
Deal found 11/9$413
This Air France deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/108:25 pmBOS - HEL
1 stop19h 10mAir France
Mon 11/176:30 amHEL - BOS
1 stop16h 50mAir France
Deal found 11/9$416

Cheap flight deals from Boston to Helsinki

Discover tips and strategies to find the most affordable flight options for your journey from Boston (BOS) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated November 10, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$357
(Ovago)

One-way from

$198
(SmartFares)

Popular in

July

Cheapest in

December

Average price

$442
Provider with most accurate pricing for Boston Logan Intl-Helsinki-Vantaa flight deals.
Search Deals
Provider most trusted by Cheapflights users for Boston Logan Intl-Helsinki-Vantaa flights.
Search Deals
From Boston Logan Intl to Helsinki-Vantaa
Search Deals
One-way flight from Boston Logan Intl to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($179 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in November 2025
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Boston to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 10, 2025.
Use the filters below to find and compare flights from Boston to Helsinki that are best for you.

Fly from

Boston

Fly to

Helsinki

Route

Depart

Return

Price

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 1/14

3:30 pm-4:25 pm

2 stops17h 55m

Helsinki-Vantaa

Wed 1/21

6:30 am-6:30 pm

2 stops19h 00m

$381

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 12/3

1:05 pm-1:10 pm

2 stops17h 05m

Helsinki-Vantaa

Wed 12/10

6:30 am-4:20 pm

1 stop16h 50m

$383

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 12/3

12:50 pm-1:10 pm

2 stops17h 20m

Helsinki-Vantaa

Tue 12/9

6:30 am-1:35 pm

1 stop14h 05m

$383

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 1/18

1:28 pm-3:25 pm

2 stops18h 57m

Helsinki-Vantaa

Wed 1/21

4:10 pm-3:50 pm

2 stops30h 40m

$384

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Fri 2/6

1:28 pm-2:10 pm

2 stops17h 42m

Helsinki-Vantaa

Sun 2/15

6:15 am-3:50 pm

1 stop16h 35m

$395

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 3/17

8:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Sun 3/22

1:55 pm-6:50 pm

1 stop10h 55m

$411

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 3/17

6:00 am-6:50 pm

2 stops30h 50m

Helsinki-Vantaa

Sun 3/22

6:50 am-7:35 pm

1 stop18h 45m

$450

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 12/3

7:27 pm-1:55 pm

1 stop11h 28m

Helsinki-Vantaa

Tue 12/9

4:50 pm-10:54 pm

1 stop13h 04m

$452

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sat 3/21

12:35 pm-12:55 pm

1 stop18h 20m

$245

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sat 12/13

7:50 pm-12:55 pm

1 stop10h 05m

$249

Flights are sorted by cheapest round-trip flights first.

Deals found on 11/8

Showing 1-10 of 16 results
1
2

Compare providers for flights from Boston to Helsinki

Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Boston to Helsinki in November.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy2 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*1 star
AranGrantPrice Accuracy2 starsTrust Score*3 stars
CheapflightsfaresPrice Accuracy3 starsTrust Score*2 stars

*The Trust Score is based on feedback from users after their booking experience. It measures overall satisfaction, helping us identify issues like hidden fees, problems during the ticketing process, and the quality of customer service. This score is our best indicator of the provider's quality and reliability.

  • Most accurate provider: When it comes to deals on Boston-Helsinki flights, users find the pricing of eDreams to be most consistent on Cheapflights vs. eDreams Users can find the same prices on Boston-Helsinki flight deals on Cheapflights vs. eDreams >95% of the time. Price accuracy is based on data collected from Boston-Helsinki flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Boston-Helsinki flights, Cheapflights users trust eDreams the most. eDreams has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Boston-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Boston to Helsinki

Have a flexible travel schedule? Discover the best time to fly to Helsinki from Boston with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

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

How far ahead should I book a flight from Boston to Helsinki?

Use this chart to determine the optimal time to book a round-trip flight from Boston to Helsinki. Price data was last updated on November 7, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Helsinki, you should look to book at least 3 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.

What is the cheapest month to book a flight from Boston to Helsinki?

Currently, December is the cheapest month in which you can book a flight from Boston to Helsinki (average of $331). Flying from Boston to Helsinki in July is currently the most expensive (average of $566). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

What is the cheapest time of day to fly from BOS to HEL?

Find hourly flight availability from Boston to Helsinki. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated November 10, 2025.

It’s optimal to fly from Boston to Helsinki in the evening. By choosing this option you can save up to 76% on the cost of your flight, compared to a flight at noon.

Reviews of airlines servicing Helsinki

Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated November 10, 2025.
Peruse reviews from past customers who have flown with Finnair, Scandinavian Airlines, and American Airlines from Boston to Helsinki to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Finnair
7.6
Good
1,335 reviews

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Finnair
7.6
Good
1,335 reviews
Finnair
7.6
Good
1,335 reviews

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Scandinavian Airlines
7.4
Good
1,570 reviews
Finnair
7.6
Good
1,335 reviews

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
American Airlines
7.2
Good
11,046 reviews
Finnair
7.6
Good
1,335 reviews

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Icelandair
7.0
Good
574 reviews
Finnair
7.6
Good
1,335 reviews

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.
Lufthansa
6.8
Okay
7,564 reviews
Finnair
7.6
Good
1,335 reviews

Food

6.7

Overall

7.6

Boarding

7.6

Comfort

7.4

Crew

8.1

Entertainment

6.9

Reviews

1 / 20
4.0
Okay

Anonymous,Sep 2025

WAW - HEL

My flight to Europe was cancelled and rebooked. Bags got lost by FinnAir. Flight back home from Europe was cancelled the very next day after we landed. Zero compensation for these back to back cancellations on the exact same trip. Kayak doesn’t help with flight cancellation before trips says to contact trip protection only for trip protection to say it’s up to kayak. Don’t fly FinnAir.

Related info for your journey

Find useful and relevant information for your journey from Boston to Helsinki. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Boston to Helsinki?

    Airlines like Icelandair and Delta fly from Boston to Helsinki in about 10h 05m. The time it takes to get you to your destination can typically vary by up to 7h 50m. Boston and Helsinki are separated by a distance of 3923 mi. This flight may include one or multiple stops.

  • What are the cheapest airlines flying from Boston to Helsinki round-trip?

    American Airlines, at $331, was found to be the cheapest airline from Boston to Helsinki.Alternate airlines to your destination round-trip include Finnair and Icelandair. These flights start at 40% lower than the current average price 3 months from now.

  • Can I find deals for flights from Boston to Helsinki that include hotel bookings?

    Yes. In addition to deals on Boston to Helsinki flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Boston to Helsinki?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Boston to Helsinki.

  • Can I find deals for business class flights from Boston to Helsinki?

    Yes. Cheapflights offers flight deals from Boston to Helsinki by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Boston to Helsinki?

    Currently, December is the cheapest month in which you can book a flight from Boston to Helsinki (average of $331). Flying from Boston to Helsinki in July is currently the most expensive (average of $566). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Lahti

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Boston to Helsinki

See prices for flight routes from nearby airports that may be better suited for you.
Boston to Rovaniemi flights
Hartford to Helsinki flights
Boston to Oulu flights

Top 10 airlines flying from Boston to Helsinki

Discover the top 10 airlines that operate flights from Boston to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated November 10, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$331Average$564FlexibilityNo cancel feeOn-time71%
FinnairCheapest$349Average$421FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$358Average$501FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$366Average$643FlexibilityNo cancel feeOn-time77%
DeltaCheapest$410Average$801FlexibilityNo cancel feeOn-timeN/A
Scandinavian AirlinesCheapest$422Average$613FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$429Average$936FlexibilityNo cancel feeOn-time69%
KLMCheapest$430Average$709FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$455Average$776FlexibilityNo cancel feeOn-time70%
LufthansaCheapest$473Average$718FlexibilityNo cancel feeOn-time76%

100% Free

Cheapflights is completely free to use, so you can start saving the moment you arrive.

Book with Flexibility

Our users can plan ahead with confidence and find flights with no change fees

Travel Smart

Millions of people come to us for their flight needs every year. We help make travel planning easy by providing useful insights and data-driven graphs that can inform your decisions.