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$260+ 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 9/22. Fares are subject to change and may not be available on all flights or dates of travel.
BOS — HEL
Jun 17 — Jun 241
Tue 6/17
Tue 6/24
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 June 12, 2025.

Round-trip from

$525
(Gurufare)

One-way from

$260
(Kiwi.com)

Popular in

June

Cheapest in

November

Average price

$814
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 ($171 potential increase over avg. RT price).
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Cheapest flight prices on average. 4% potential price decrease ($23 potential savings vs. average RT price).
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Average for round-trip flights in June 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 June 12, 2025.

This Gurufare deal was found by Cheapflights users on 6/10. 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 Gurufare is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/167:25 amBOS - HEL
2 stops20h 50mBritish Airways
Wed 8/69:05 pmHEL - BOS
1 stop21h 20mBritish Airways
Deal found 6/10$525
This Icelandair deal was found by Cheapflights users on 6/11. 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.
Mon 7/218:50 pmBOS - HEL
1 stop10h 10mIcelandair
Thu 7/313:00 pmHEL - BOS
1 stop10h 50mIcelandair
Deal found 6/11$527
This Booking.com deal was found by Cheapflights users on 6/10. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/15:40 pmBOS - HEL
2 stops16h 15mScandinavian Airlines
Sun 9/77:40 pmHEL - BOS
2 stops26h 55mScandinavian Airlines
Deal found 6/10$528
This Finnair deal was found by Cheapflights users on 6/10. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/235:59 pmBOS - HEL
1 stop13h 01mFinnair
Sat 9/65:15 pmHEL - BOS
1 stop12h 35mFinnair
Deal found 6/10$531
This American Airlines deal was found by Cheapflights users on 6/10. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/285:59 pmBOS - HEL
1 stop13h 01mAmerican Airlines
Mon 9/112:35 pmHEL - BOS
1 stop16h 17mAmerican Airlines
Deal found 6/10$540
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Sun 8/2411:35 pmBOS - HEL
2 stops13h 50mMultiple Airlines
Fri 8/298:30 pmHEL - BOS
2 stops29h 20mMultiple Airlines
Deal found 6/12$541
This Delta deal was found by Cheapflights users on 6/10. 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.
Thu 8/74:50 pmBOS - HEL
1 stop13h 10mDelta
Wed 8/206:35 amHEL - BOS
2 stops16h 25mDelta
Deal found 6/10$542
This KLM deal was found by Cheapflights users on 6/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/74:50 pmBOS - HEL
1 stop13h 10mKLM
Wed 8/207:00 amHEL - BOS
1 stop18h 25mKLM
Deal found 6/11$544
This United Airlines deal was found by Cheapflights users on 6/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/79:30 amBOS - HEL
2 stops20h 20mUnited Airlines
Wed 8/206:10 amHEL - BOS
2 stops35h 25mUnited Airlines
Deal found 6/10$568
This Air France deal was found by Cheapflights users on 6/12. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/224:50 pmBOS - HEL
1 stop13h 10mAir France
Sat 8/306:40 amHEL - BOS
1 stop20h 40mAir France
Deal found 6/12$613
This FlightHub deal was found by Cheapflights users on 6/9. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/208:05 pmBOS - HEL
1 stop20h 45mLufthansa
Wed 7/306:10 amHEL - BOS
1 stop16h 45mLufthansa
Deal found 6/9$647
This Brussels Airlines deal was found by Cheapflights users on 6/11. 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 Brussels Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/2410:00 pmBOS - HEL
1 stop19h 40mBrussels Airlines
Tue 8/121:35 pmHEL - BOS
1 stop33h 05mBrussels Airlines
Deal found 6/11$653

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 June 12, 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 7/16

7:25 am-11:15 am

2 stops20h 50m

Helsinki-Vantaa

Wed 8/6

9:05 pm-11:25 am

1 stop21h 20m

$525

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 7/21

8:50 pm-2:00 pm

1 stop10h 10m

Helsinki-Vantaa

Thu 7/31

3:00 pm-6:50 pm

1 stop10h 50m

$527

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 9/1

5:40 pm-4:55 pm

2 stops16h 15m

Helsinki-Vantaa

Sun 9/7

7:40 pm-3:35 pm

2 stops26h 55m

$528

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sat 8/23

5:59 pm-2:00 pm

1 stop13h 01m

Helsinki-Vantaa

Sat 9/6

5:15 pm-10:50 pm

1 stop12h 35m

$531

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 8/28

5:59 pm-2:00 pm

1 stop13h 01m

Helsinki-Vantaa

Mon 9/1

12:35 pm-9:52 pm

1 stop16h 17m

$540

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 8/24

11:35 pm-8:25 pm

2 stops13h 50m

Helsinki-Vantaa

Fri 8/29

8:30 pm-6:50 pm

2 stops29h 20m

$541

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 8/7

4:50 pm-1:00 pm

1 stop13h 10m

Helsinki-Vantaa

Wed 8/20

6:35 am-4:00 pm

2 stops16h 25m

$542

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 8/7

4:50 pm-1:00 pm

1 stop13h 10m

Helsinki-Vantaa

Wed 8/20

7:00 am-6:25 pm

1 stop18h 25m

$544

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 8/7

9:30 am-12:50 pm

2 stops20h 20m

Helsinki-Vantaa

Wed 8/20

6:10 am-10:35 am

2 stops35h 25m

$568

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Fri 8/22

4:50 pm-1:00 pm

1 stop13h 10m

Helsinki-Vantaa

Sat 8/30

6:40 am-8:20 pm

1 stop20h 40m

$613

Flights are sorted by cheapest round-trip flights first.

Deals found on 6/10

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 June 9, 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 $1,081). 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 June 12, 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.

What is the cheapest day to fly from Boston to Helsinki?

Use this chart to determine the cheapest time to fly round-trip from Boston to Helsinki. Price data was last updated on December 16, 2024.

Travelers seeking maximum savings on their Boston to Helsinki flight should consider departing on Tuesday evenings when fares are most often at their lowest. Tuesday at noon flights should be avoided if possible as fares are typically the most expensive at this time.

Rainfall in Helsinki by month

Plan your trip to Helsinki by taking into account the average rainfall totals by month.

In terms of precipitation, rainfall in Helsinki ranges from 1.2 - 2.8 inches per month. August is typically the wettest month, when rainfall can reach 2.8 in. February is typically the driest time to visit Helsinki when rainfall is around 1.2 in.

Temperature in Helsinki by month

Plan your trip to Helsinki by taking into account the average temperature totals by month.

If weather is an important factor for your trip to Helsinki, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 60.8 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 21.2 F).

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 June 12, 2025.
To help decide which airline to fly from Boston to Helsinki, see what other customers have to say about Delta, KLM and Finnair. In addition to providing an overall rating, users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Delta
8.0
Very good
7,950 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
KLM
7.8
Good
1,358 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Finnair
7.6
Good
1,290 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Air France
7.5
Good
1,463 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!
Brussels Airlines
7.4
Good
355 reviews
Delta
8.0
Very good
7,950 reviews

Food

7.3

Boarding

8.2

Comfort

7.9

Overall

8.0

Entertainment

7.9

Crew

8.5

Reviews

1 / 20
10.0
Excellent

Kim,May 2025

PIH - SLC

This trip was fine even with delay I had plenty of time to get connection flight!

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?

    British Airways, at $525, was found to be the cheapest airline from Boston to Helsinki.Alternate airlines to your destination round-trip include Icelandair and Scandinavian Airlines. These flights start at 7% 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 ($328), Scandinavian Airlines ($419), and British Airways ($420).

  • 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 $1,081). 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 Boston?

Book flights to Boston 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.
Hartford to Helsinki flights
Boston to Oulu flights
Boston to Rovaniemi 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 June 12, 2025.
AirlineCheapestAverageFlexibilityOn-time
IcelandairCheapest$355Average$429FlexibilityNo cancel feeOn-time76%
Scandinavian AirlinesCheapest$380Average$511FlexibilityNo cancel feeOn-time77%
American AirlinesCheapest$430Average$670FlexibilityNo cancel feeOn-time71%
British AirwaysCheapest$436Average$759FlexibilityNo cancel feeOn-time70%
FinnairCheapest$458Average$661FlexibilityNo cancel feeOn-time76%
United AirlinesCheapest$468Average$800FlexibilityNo cancel feeOn-time69%
DeltaCheapest$493Average$766FlexibilityNo cancel feeOn-timeN/A
Air FranceCheapest$493Average$688FlexibilityNo cancel feeOn-time77%
KLMCheapest$500Average$781FlexibilityNo cancel feeOn-time75%
LufthansaCheapest$578Average$735FlexibilityNo cancel feeOn-time76%

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