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$277+ 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 5/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HEL
May 16 — May 231
Sat 5/16
Sat 5/23
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 April 16, 2026.

This Mytrip deal was found by Cheapflights users on 4/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:50 pm
BOS
-
HEL
1 stop10h 05m
Icelandair
Wed 11/251:55 pm
HEL
-
BOS
1 stop27h 45m
Icelandair
Deal found 4/14$355
This oojo deal was found by Cheapflights users on 4/14. 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.
Sat 12/57:50 pm
BOS
-
HEL
1 stop10h 05m
Icelandair
Sat 12/121:55 pm
HEL
-
BOS
1 stop10h 55m
Icelandair
Deal found 4/14$380
This oojo deal was found by Cheapflights users on 4/12. 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 4/2311:00 pm
BOS
-
HEL
1 stop32h 00m
Icelandair
Thu 4/303:00 pm
HEL
-
BOS
1 stop13h 45m
Icelandair
Deal found 4/12$381
This Trip.com deal was found by Cheapflights users on 4/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/67:50 pm
BOS
-
HEL
1 stop10h 05m
Icelandair
Sat 11/211:55 pm
HEL
-
BOS
1 stop10h 55m
Icelandair
Deal found 4/15$396
This Mytrip deal was found by Cheapflights users on 4/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2311:00 pm
BOS
-
HEL
1 stop32h 00m
Icelandair
Thu 5/73:00 pm
HEL
-
BOS
1 stop10h 50m
Icelandair
Deal found 4/14$405
This Trip.com deal was found by Cheapflights users on 4/14. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/198:50 pm
BOS
-
HEL
1 stop10h 10m
Icelandair
Mon 10/261:55 pm
HEL
-
BOS
1 stop10h 55m
Icelandair
Deal found 4/14$406
This oojo deal was found by Cheapflights users on 4/14. 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.
Sun 10/1811:00 pm
BOS
-
HEL
1 stop17h 20m
Icelandair
Sat 10/311:55 pm
HEL
-
BOS
1 stop10h 55m
Icelandair
Deal found 4/14$411
This Mytrip deal was found by Cheapflights users on 4/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/2011:00 pm
BOS
-
HEL
1 stop32h 00m
Icelandair
Tue 5/53:00 pm
HEL
-
BOS
1 stop10h 50m
Icelandair
Deal found 4/12$437
This oojo deal was found by Cheapflights users on 4/14. 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 4/298:50 pm
BOS
-
HEL
1 stop10h 10m
Icelandair
Tue 5/53:00 pm
HEL
-
BOS
1 stop10h 50m
Icelandair
Deal found 4/14$440
This oojo deal was found by Cheapflights users on 4/13. 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 4/2311:00 pm
BOS
-
HEL
1 stop32h 00m
Icelandair
Wed 5/63:00 pm
HEL
-
BOS
1 stop10h 50m
Icelandair
Deal found 4/13$441

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 April 16, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$439
(Trip.com)

One-way from

$277
(Mytrip)

Popular in

June

Cheapest in

December

Average price

$492
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. 29% potential increase in price ($223 potential increase over avg. RT price).
Search Deals
Cheapest flight prices on average. 6% potential price decrease ($33 potential savings vs. average RT price).
Search Deals
Average for round-trip flights in April 2026
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 April 16, 2026.
Use the filters below to find and compare flights from Boston to Helsinki that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 9/28

11:00 am-12:55 pm

2 stops18h 55m

Helsinki-Vantaa

Tue 10/6

6:10 am-9:27 pm

2 stops22h 17m

$502
Quickest round-trip

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 8/30

7:10 pm-4:40 pm

1 stop14h 30m

Helsinki-Vantaa

Tue 9/8

7:00 am-1:19 pm

1 stop13h 19m

$509

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 8/30

9:55 am-12:55 pm

2 stops20h 00m

Helsinki-Vantaa

Tue 9/8

7:00 am-10:36 pm

2 stops22h 36m

$512

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 5/11

1:29 pm-12:55 pm

2 stops16h 26m

Helsinki-Vantaa

Mon 5/18

7:00 am-7:03 pm

2 stops19h 03m

$512

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 10/11

9:45 pm-4:40 pm

1 stop11h 55m

Helsinki-Vantaa

Fri 10/23

6:10 am-6:27 pm

2 stops19h 17m

$559

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 8/27

5:10 pm-4:40 pm

1 stop16h 30m

Helsinki-Vantaa

Tue 9/8

7:00 am-6:29 pm

2 stops18h 29m

$570

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 8/23

5:40 pm-11:50 pm

2 stops23h 10m

Helsinki-Vantaa

Fri 8/28

7:15 am-3:35 pm

2 stops15h 20m

$585

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 9/1

5:40 pm-8:35 pm

2 stops19h 55m

Helsinki-Vantaa

Sat 9/12

7:15 am-3:35 pm

2 stops15h 20m

$615

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 5/14

4:35 pm-12:25 am

1 stop24h 50m

Helsinki-Vantaa

Fri 5/22

7:00 am-4:25 pm

1 stop16h 25m

$621

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 9/1

1:10 pm-12:55 pm

2 stops16h 45m

Helsinki-Vantaa

Wed 9/16

6:10 am-3:19 pm

2 stops16h 09m

$662

Flights are sorted by cheapest round-trip flights first.

Deals found on 4/14

Showing 1-10 of 21 resultsSorted by cheapest first
1
2
3

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 April.
ProviderPrice AccuracyTrust Score*
ExpediaPrice Accuracy1 starTrust Score*3 stars
FlightHubPrice Accuracy3 starsTrust Score*3 stars
eDreamsPrice Accuracy3 starsTrust Score*3 stars
AranGrantPrice Accuracy2 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 FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Boston-Helsinki flight deals on Cheapflights vs. FlightHub >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 FlightHub the most. FlightHub 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 April 10, 2026.

To ensure you get the cheapest price possible for a flight from Boston to Helsinki, you should look to book at least 70 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 June is currently the most expensive (average of $547). 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.

How much does it cost to fly round-trip from Boston to Helsinki?

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 April 16, 2026.
Peruse reviews from past customers who have flown with Finnair,Scandinavian Airlines, andAmerican 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
7.7
Good
1,387 reviews

Overall

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Finnair
7.7
Good
1,387 reviews
Finnair
7.7
Good
1,387 reviews

Overall

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Scandinavian Airlines
7.3
Good
1,750 reviews
Finnair
7.7
Good
1,387 reviews

Overall

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
American Airlines
7.1
Good
11,581 reviews
Finnair
7.7
Good
1,387 reviews

Overall

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Icelandair
7.0
Good
634 reviews
Finnair
7.7
Good
1,387 reviews

Overall

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.
Lufthansa
6.8
Okay
7,926 reviews
Finnair
7.7
Good
1,387 reviews

Overall

7.7

Entertainment

6.9

Comfort

7.5

Crew

8.2

Food

6.7

Boarding

7.7

Reviews

1 / 20
6.0
Good

Firuz,Feb 2026

FRA - HEL

Positive: Simple and quick check-in. It was refreshingly easy and polite check-in and boarding staff. Negative: We were delayed, and there was no communication. I am surprised that with an airline like Finnair, you do not get any snacks on a 2.5h flight. The flights are not as cheap as Ryanair, so a bit more service would be appreciated. The crew did not specify which drink was free and which was available for payment, as there was no menu at my seat.

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 Delta fly from Boston to Helsinki in about 18h 55m. 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 38% 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), Lufthansa ($286), and Brussels Airlines ($324).

  • 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 June is currently the most expensive (average of $547). 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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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 April 16, 2026.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$331Average$561FlexibilityNo cancel feeOn-time71%
FinnairCheapest$349Average$411FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$354Average$465FlexibilityNo cancel feeOn-time76%
Air FranceCheapest$366Average$643FlexibilityNo cancel feeOn-time77%
United AirlinesCheapest$392Average$1,056FlexibilityNo cancel feeOn-time69%
DeltaCheapest$410Average$844FlexibilityNo cancel feeOn-timeN/A
KLMCheapest$430Average$762FlexibilityNo cancel feeOn-time75%
British AirwaysCheapest$431Average$759FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$446Average$677FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$466Average$689FlexibilityNo cancel feeOn-time76%

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