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$268+ 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 11/6. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HEL
Oct 17 — Oct 241
Fri 10/17
Fri 10/24
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Helsinki-Vantaa are usually found in December or November, booked 71 days in advance, depart on a Tuesday or Thursday and return on a Wednesday

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 September 17, 2025.

Round-trip from

$323
(American Airlines)

One-way from

$268
(Mytrip)

Popular in

June

Cheapest in

December

Average price

$539
From Boston Logan Intl to Helsinki-Vantaa
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One-way flight from Boston Logan Intl to Helsinki-Vantaa
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Highest demand for flights based on searches. 25% potential increase in price ($189 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($24 potential savings vs. average RT price).
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Average for round-trip flights in September 2025
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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 September 17, 2025.

This American Airlines deal was found by Cheapflights users on 9/16. 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 10/204:35 pmBOS - HEL
1 stop14h 25mAmerican Airlines
Tue 11/412:30 pmHEL - BOS
1 stop17h 32mAmerican Airlines
Deal found 9/16$323
This Booking.com deal was found by Cheapflights users on 9/17. 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.
Wed 10/225:59 pmBOS - HEL
1 stop13h 01mFinnair
Wed 10/295:00 pmHEL - BOS
1 stop11h 53mFinnair
Deal found 9/17$324
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:03 pmBOS - HEL
1 stop18h 52mAmerican Airlines
Tue 12/912:30 pmHEL - BOS
1 stop16h 03mAmerican Airlines
Deal found 9/15$332
This CrystalTravel deal was found by Cheapflights users on 9/15. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/158:50 pmBOS - HEL
1 stop10h 10mIcelandair
Wed 10/223:00 pmHEL - BOS
1 stop14h 00mIcelandair
Deal found 9/15$356
This CrystalTravel deal was found by Cheapflights users on 9/16. 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.
Tue 10/148:50 pmBOS - HEL
1 stop10h 10mIcelandair
Tue 10/213:00 pmHEL - BOS
1 stop10h 50mIcelandair
Deal found 9/16$358
This FlightHub deal was found by Cheapflights users on 9/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/51:20 pmBOS - HEL
2 stops19h 05mScandinavian Airlines
Wed 11/129:00 pmHEL - BOS
1 stop25h 50mScandinavian Airlines
Deal found 9/14$359
This FlightHub deal was found by Cheapflights users on 9/16. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/186:15 amBOS - HEL
2 stops34h 30mScandinavian Airlines
Tue 11/258:55 pmHEL - BOS
2 stops49h 55mScandinavian Airlines
Deal found 9/16$360
This FlightHub deal was found by Cheapflights users on 9/17. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/196:15 amBOS - HEL
2 stops26h 10mScandinavian Airlines
Sun 11/237:40 pmHEL - BOS
2 stops27h 10mScandinavian Airlines
Deal found 9/17$361
This American Airlines deal was found by Cheapflights users on 9/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/312:03 pmBOS - HEL
1 stop18h 52mAmerican Airlines
Wed 12/105:00 pmHEL - BOS
1 stop12h 54mAmerican Airlines
Deal found 9/15$362
This oojo deal was found by Cheapflights users on 9/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/148:50 pmBOS - HEL
1 stop10h 10mIcelandair
Fri 10/243:00 pmHEL - BOS
1 stop10h 50mIcelandair
Deal found 9/15$366
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/27:50 pmBOS - HEL
1 stop10h 05mIcelandair
Tue 12/91:55 pmHEL - BOS
1 stop10h 55mIcelandair
Deal found 9/15$368

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 September 17, 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 11/12

7:17 pm-1:55 pm

1 stop11h 38m

Helsinki-Vantaa

Wed 11/19

5:00 pm-10:47 pm

1 stop12h 47m

$332

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 11/19

6:15 am-3:25 pm

2 stops26h 10m

Helsinki-Vantaa

Sun 11/23

7:40 pm-3:50 pm

2 stops27h 10m

$361

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 10/15

8:50 pm-2:00 pm

1 stop10h 10m

Helsinki-Vantaa

Wed 10/22

3:00 pm-6:50 pm

1 stop10h 50m

$366

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 10/7

1:01 pm-2:00 pm

1 stop17h 59m

Helsinki-Vantaa

Tue 10/14

12:35 pm-11:30 pm

1 stop17h 55m

$372

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 12/4

7:24 pm-1:55 pm

1 stop11h 31m

Helsinki-Vantaa

Thu 12/11

4:50 pm-10:54 pm

1 stop13h 04m

$374

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Fri 11/7

7:17 pm-1:55 pm

1 stop11h 38m

Helsinki-Vantaa

Wed 11/12

5:00 pm-10:47 pm

1 stop12h 47m

$382

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 11/18

6:15 am-3:25 pm

2 stops26h 10m

Helsinki-Vantaa

Sat 11/22

4:05 pm-3:50 pm

1 stop30h 45m

$384

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 11/30

8:40 pm-6:50 pm

1 stop15h 10m

Helsinki-Vantaa

Wed 12/10

12:45 pm-6:35 pm

1 stop12h 50m

$393

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 11/30

8:40 pm-6:50 pm

1 stop15h 10m

Helsinki-Vantaa

Fri 12/12

12:45 pm-6:35 pm

1 stop12h 50m

$393

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 11/18

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Sat 11/22

1:55 pm-5:50 pm

1 stop10h 55m

$398

Flights are sorted by cheapest round-trip flights first.

Deals found on 9/16

Showing 1-10 of 19 results
1
2

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 September 12, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Helsinki, you should look to book at least 71 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, November is the cheapest month in which you can book a flight from Boston to Helsinki (average of $444). Flying from Boston to Helsinki in June is currently the most expensive (average of $1,082). 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 September 17, 2025.

It’s optimal to fly from Boston to Helsinki in the evening. By choosing this option you can save up to 77% 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 September 17, 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
1,324 reviews

Comfort

7.5

Crew

8.1

Food

6.7

Overall

7.6

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Finnair
7.6
Good
1,324 reviews
Finnair
7.6
Good
1,324 reviews

Comfort

7.5

Crew

8.1

Food

6.7

Overall

7.6

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Scandinavian Airlines
7.4
Good
1,486 reviews
Finnair
7.6
Good
1,324 reviews

Comfort

7.5

Crew

8.1

Food

6.7

Overall

7.6

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
American Airlines
7.2
Good
10,000 reviews
Finnair
7.6
Good
1,324 reviews

Comfort

7.5

Crew

8.1

Food

6.7

Overall

7.6

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Icelandair
7.0
Good
545 reviews
Finnair
7.6
Good
1,324 reviews

Comfort

7.5

Crew

8.1

Food

6.7

Overall

7.6

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.
Lufthansa
6.8
Okay
7,409 reviews
Finnair
7.6
Good
1,324 reviews

Comfort

7.5

Crew

8.1

Food

6.7

Overall

7.6

Entertainment

6.9

Boarding

7.6

Reviews

1 / 20
6.0
Good

Rowland,Dec 2024

FRA - HEL

Finnair need to get a better system for boarding. Hundreds of passengers all attempting to get their boarding cards and passports checked at the gate and then get onto the aircraft is ridiculous, time consuming and frankly unfair to passengers.

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 Finnair, Scandinavian Airlines, and Icelandair fly from Boston to Helsinki in about 10h 10m. The time it takes to get you to your destination can typically vary by up to 16h. 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, November is the cheapest month in which you can book a flight from Boston to Helsinki (average of $444). Flying from Boston to Helsinki in June is currently the most expensive (average of $1,082). 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

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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 September 17, 2025.
AirlineCheapestAverageFlexibilityOn-time
American AirlinesCheapest$331Average$566FlexibilityNo cancel feeOn-time71%
FinnairCheapest$349Average$420FlexibilityNo cancel feeOn-time76%
IcelandairCheapest$366Average$474FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$429Average$936FlexibilityNo cancel feeOn-time69%
British AirwaysCheapest$436Average$760FlexibilityNo cancel feeOn-time70%
Scandinavian AirlinesCheapest$437Average$603FlexibilityNo cancel feeOn-time77%
LufthansaCheapest$473Average$714FlexibilityNo cancel feeOn-time76%
DeltaCheapest$493Average$741FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$493Average$694FlexibilityNo cancel feeOn-time77%
KLMCheapest$500Average$751FlexibilityNo cancel feeOn-time75%

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