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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 2/3. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HEL
Aug 19 — Aug 261
Tue 8/19
Tue 8/26
1 adult, Economy
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Cheapflights Tip: The best prices from Boston Logan Intl to Helsinki-Vantaa are usually found in November or January, booked 86 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 August 14, 2025.

Round-trip from

$311
(Gotogate)

One-way from

$268
(Booking.com)

Popular in

June

Cheapest in

November

Average price

$594
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. 23% potential increase in price ($178 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($22 potential savings vs. average RT price).
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Average for round-trip flights in August 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 August 14, 2025.

This Gotogate deal was found by Cheapflights users on 8/13. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/266:28 pmBOS - HEL
1 stop13h 27mFinnair
Tue 11/114:50 pmHEL - BOS
1 stop12h 56mFinnair
Deal found 8/13$311
This Booking.com deal was found by Cheapflights users on 8/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/127:19 pmBOS - HEL
1 stop11h 36mFinnair
Fri 12/54:50 pmHEL - BOS
1 stop12h 55mFinnair
Deal found 8/14$315
This Booking.com deal was found by Cheapflights users on 8/14. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/75:59 pmBOS - HEL
1 stop13h 01mFinnair
Thu 10/165:15 pmHEL - BOS
1 stop12h 04mFinnair
Deal found 8/14$322
This American Airlines deal was found by Cheapflights users on 8/14. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/71:01 pmBOS - HEL
1 stop17h 59mAmerican Airlines
Tue 10/145:15 pmHEL - BOS
1 stop21h 59mAmerican Airlines
Deal found 8/14$332
This Ovago deal was found by Cheapflights users on 8/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/77:40 pmBOS - HEL
1 stop12h 35mBritish Airways
Wed 10/155:15 pmHEL - BOS
1 stop12h 04mBritish Airways
Deal found 8/14$358
This Ovago deal was found by Cheapflights users on 8/13. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/711:35 pmBOS - HEL
1 stop31h 25mIcelandair
Fri 10/173:00 pmHEL - BOS
1 stop10h 50mIcelandair
Deal found 8/13$362
This oojo deal was found by Cheapflights users on 8/13. 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.
Mon 11/247:50 pmBOS - HEL
1 stop10h 05mIcelandair
Fri 11/281:55 pmHEL - BOS
1 stop10h 55mIcelandair
Deal found 8/13$364
This American Airlines deal was found by Cheapflights users on 8/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/144:30 pmBOS - HEL
1 stop14h 30mAmerican Airlines
Tue 9/305:15 pmHEL - BOS
1 stop14h 00mAmerican Airlines
Deal found 8/13$365
This Ovago deal was found by Cheapflights users on 8/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:50 pmBOS - HEL
1 stop10h 10mIcelandair
Wed 10/153:00 pmHEL - BOS
1 stop14h 00mIcelandair
Deal found 8/14$366
This Ovago deal was found by Cheapflights users on 8/14. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/88:50 pmBOS - HEL
1 stop10h 10mIcelandair
Sun 10/123:00 pmHEL - BOS
1 stop14h 00mIcelandair
Deal found 8/14$367
This Iberia deal was found by Cheapflights users on 8/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/54:30 pmBOS - HEL
2 stops23h 05mIberia
Wed 10/155:15 pmHEL - BOS
1 stop31h 00mIberia
Deal found 8/14$368
This Ticket deal was found by Cheapflights users on 8/13. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/265:30 amBOS - HEL
2 stops31h 20mAir Canada
Tue 11/111:55 pmHEL - BOS
2 stops31h 57mAir Canada
Deal found 8/13$370

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 August 14, 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

Sun 10/26

6:28 pm-1:55 pm

1 stop13h 27m

Helsinki-Vantaa

Tue 11/11

4:50 pm-10:46 pm

1 stop12h 56m

$311

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 11/12

7:19 pm-1:55 pm

1 stop11h 36m

Helsinki-Vantaa

Fri 12/5

4:50 pm-10:45 pm

1 stop12h 55m

$315

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 12/3

7:25 pm-1:55 pm

1 stop11h 30m

Helsinki-Vantaa

Wed 12/10

5:00 pm-10:45 pm

1 stop12h 45m

$322

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 10/7

5:59 pm-2:00 pm

1 stop13h 01m

Helsinki-Vantaa

Thu 10/16

5:15 pm-10:19 pm

1 stop12h 04m

$322

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 10/7

1:01 pm-2:00 pm

1 stop17h 59m

Helsinki-Vantaa

Tue 10/14

5:15 pm-8:14 am

1 stop21h 59m

$332

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 10/7

5:59 pm-2:00 pm

1 stop13h 01m

Helsinki-Vantaa

Thu 10/16

5:15 pm-10:19 pm

1 stop12h 04m

$332

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 12/3

7:25 pm-1:55 pm

1 stop11h 30m

Helsinki-Vantaa

Tue 12/9

4:50 pm-10:45 pm

1 stop12h 55m

$332

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 10/7

7:40 pm-3:15 pm

1 stop12h 35m

Helsinki-Vantaa

Wed 10/15

5:15 pm-10:19 pm

1 stop12h 04m

$358

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 10/7

11:35 pm-2:00 pm

1 stop31h 25m

Helsinki-Vantaa

Fri 10/17

3:00 pm-6:50 pm

1 stop10h 50m

$362

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 11/24

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Fri 11/28

1:55 pm-5:50 pm

1 stop10h 55m

$364

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/13

Showing 1-10 of 20 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 August 8, 2025.

To ensure you get the cheapest price possible for a flight from Boston to Helsinki, you should look to book at least 86 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 August 14, 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 August 14, 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
1,321 reviews

Crew

8.1

Comfort

7.5

Overall

7.6

Entertainment

6.9

Boarding

7.6

Food

6.7

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
1,321 reviews
Finnair
7.6
Good
1,321 reviews

Crew

8.1

Comfort

7.5

Overall

7.6

Entertainment

6.9

Boarding

7.6

Food

6.7

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
1,467 reviews
Finnair
7.6
Good
1,321 reviews

Crew

8.1

Comfort

7.5

Overall

7.6

Entertainment

6.9

Boarding

7.6

Food

6.7

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
1,321 reviews

Crew

8.1

Comfort

7.5

Overall

7.6

Entertainment

6.9

Boarding

7.6

Food

6.7

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
526 reviews
Finnair
7.6
Good
1,321 reviews

Crew

8.1

Comfort

7.5

Overall

7.6

Entertainment

6.9

Boarding

7.6

Food

6.7

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
7,317 reviews
Finnair
7.6
Good
1,321 reviews

Crew

8.1

Comfort

7.5

Overall

7.6

Entertainment

6.9

Boarding

7.6

Food

6.7

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.

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

    Icelandair, at $355, was found to be the cheapest airline from Boston to Helsinki.Alternate airlines to your destination round-trip include Scandinavian Airlines and Finnair. These flights start at 37% 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 August 14, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$355Average$416FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$380Average$515FlexibilityNo cancel feeOn-time77%
FinnairCheapest$411Average$621FlexibilityNo cancel feeOn-time76%
American AirlinesCheapest$430Average$667FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$436Average$756FlexibilityNo cancel feeOn-time70%
United AirlinesCheapest$468Average$893FlexibilityNo cancel feeOn-time69%
LufthansaCheapest$473Average$722FlexibilityNo cancel feeOn-time76%
DeltaCheapest$493Average$755FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$493Average$694FlexibilityNo cancel feeOn-time77%
KLMCheapest$500Average$751FlexibilityNo cancel feeOn-time75%

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