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$349+ 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 5/28. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HEL
Jan 29 — Feb 51
Thu 1/29
Thu 2/5
1 adult, Economy
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Cheap 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 December 30, 2025.

This Icelandair deal was found by Cheapflights users on 12/29. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/317:50 pmBOS - HEL
1 stop10h 05mIcelandair
Wed 6/103:00 pmHEL - BOS
1 stop14h 10mIcelandair
Deal found 12/29$792
This American Airlines deal was found by Cheapflights users on 12/28. 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.
Wed 12/311:35 pmBOS - HEL
2 stops17h 20mAmerican Airlines
Wed 6/104:25 pmHEL - BOS
2 stops33h 41mAmerican Airlines
Deal found 12/28$1,036
This Booking.com deal was found by Cheapflights users on 12/29. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/303:55 pmBOS - HEL
1 stop15h 00mFinnair
Tue 1/64:50 pmHEL - BOS
1 stop13h 06mFinnair
Deal found 12/29$1,097
This Expedia deal was found by Cheapflights users on 12/29. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/3011:00 amBOS - HEL
1 stop19h 55mMultiple Airlines
Tue 1/611:20 pmHEL - BOS
2 stops23h 55mMultiple Airlines
Deal found 12/29$1,136
This American Airlines deal was found by Cheapflights users on 12/29. 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.
Tue 12/307:15 pmBOS - HEL
2 stops13h 10mAmerican Airlines
Tue 1/64:50 pmHEL - BOS
1 stop13h 06mAmerican Airlines
Deal found 12/29$1,262
This Kiwi.com deal was found by Cheapflights users on 12/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/293:55 pmBOS - HEL
1 stop15h 00mMultiple Airlines
Mon 1/512:30 pmHEL - BOS
2 stops38h 25mMultiple Airlines
Deal found 12/28$1,286
This Expedia deal was found by Cheapflights users on 12/28. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/297:15 pmBOS - HEL
2 stops31h 05mFinnair
Mon 1/54:05 pmHEL - BOS
2 stops31h 10mFinnair
Deal found 12/28$1,483

Find 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 December 30, 2025.

Most accurate provider

eDreams
3 stars

Most trusted provider

eDreams
3 stars

Round-trip from

$365
(oojo)

One-way from

$349
(American Airlines)

Popular in

July

Cheapest in

December

Average price

$379
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.
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From Boston Logan Intl to Helsinki-Vantaa
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One-way flight from Boston Logan Intl to Helsinki-Vantaa
Search Deals
Highest demand for flights based on searches. 24% potential increase in price ($180 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 December 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 December 30, 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

Tue 3/10

8:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Wed 3/18

1:55 pm-6:50 pm

1 stop10h 55m

$365

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sat 2/21

5:35 pm-10:40 am

1 stop10h 05m

Helsinki-Vantaa

Thu 2/26

11:20 am-3:50 pm

1 stop11h 30m

$436

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 3/10

6:35 pm-3:25 pm

2 stops14h 50m

Helsinki-Vantaa

Wed 3/18

4:10 pm-4:50 pm

2 stops30h 40m

$447

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 4/6

5:40 pm-8:25 pm

1 stop19h 45m

Helsinki-Vantaa

Mon 4/13

9:15 pm-3:35 pm

2 stops25h 20m

$447

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 3/9

6:35 pm-3:25 pm

2 stops14h 50m

Helsinki-Vantaa

Thu 3/12

7:00 am-4:50 pm

2 stops15h 50m

$447

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 1/22

5:35 pm-1:35 am

1 stop25h 00m

Helsinki-Vantaa

Sun 1/25

6:55 am-3:50 pm

2 stops15h 55m

$447

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 2/8

5:35 pm-3:25 pm

2 stops14h 50m

Helsinki-Vantaa

Tue 2/17

6:15 am-3:50 pm

1 stop16h 35m

$447

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 5/28

12:00 pm-2:00 pm

1 stop19h 00m

$349

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 5/28

9:50 pm-10:55 pm

2 stops18h 05m

$360

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 1/7

7:35 pm-1:55 pm

1 stop11h 20m

$423

Flights are sorted by cheapest round-trip flights first.

Deals found on 12/28

Showing 1-10 of 17 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 December.
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 December 26, 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, February is the cheapest month in which you can book a flight from Boston to Helsinki (average of $329). Flying from Boston to Helsinki in July is currently the most expensive (average of $562). 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.

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 December 30, 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
1,343 reviews

Comfort

7.4

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

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
1,343 reviews
Finnair
7.6
Good
1,343 reviews

Comfort

7.4

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

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
1,633 reviews
Finnair
7.6
Good
1,343 reviews

Comfort

7.4

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

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
11,075 reviews
Finnair
7.6
Good
1,343 reviews

Comfort

7.4

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

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
7.1
Good
593 reviews
Finnair
7.6
Good
1,343 reviews

Comfort

7.4

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

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
7,666 reviews
Finnair
7.6
Good
1,343 reviews

Comfort

7.4

Entertainment

6.9

Crew

8.1

Overall

7.6

Food

6.7

Boarding

7.6

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 Scandinavian Airlines 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 . Boston and Helsinki are separated by a distance of 3923 mi.

  • 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 41% lower than the current average price 3 months from now.

  • What are the cheapest airlines to fly from Boston to Helsinki one-way?

    The cheapest airlines for a one-way flight from Boston to Helsinki are Icelandair ($194), Scandinavian Airlines ($213), and Lufthansa ($286).

  • 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, February is the cheapest month in which you can book a flight from Boston to Helsinki (average of $329). Flying from Boston to Helsinki in July is currently the most expensive (average of $562). 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

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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 December 30, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$331Average$565FlexibilityNo cancel feeOn-time71%
FinnairCheapest$349Average$419FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$355Average$489FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$366Average$643FlexibilityNo cancel feeOn-time77%
DeltaCheapest$410Average$801FlexibilityNo cancel feeOn-timeN/A
United AirlinesCheapest$429Average$936FlexibilityNo cancel feeOn-time69%
KLMCheapest$430Average$697FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$446Average$759FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$447Average$626FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$473Average$714FlexibilityNo cancel feeOn-time76%

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