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Cheap flights from Boston to Helsinki from $217

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Boston to Helsinki departing on 1/31. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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0 bags

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Find the cheapest flights from Boston to Helsinki

Cheap round-trip flights

Enter your travel dates to find the best prices.
Icelandair Logo
8:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m1 stop
$359Icelandair
Tue, Mar 10 - Wed, Mar 18
Icelandair Logo
7:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 5:50 pm
HEL
-
BOS
10h 55m1 stop
$362Icelandair
Wed, Feb 25 - Tue, Mar 3
Icelandair Logo
7:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 10:35 am
HEL
-
BOS
27h 40m1 stop
$363Icelandair
Thu, Feb 5 - Fri, Feb 20
Icelandair Logo
8:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m1 stop
$365Icelandair
Tue, Mar 10 - Wed, Mar 18
Icelandair Logo
8:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m1 stop
$369Icelandair
Mon, Mar 9 - Wed, Mar 18
Icelandair Logo
11:35 am - 12:55 pm
BOS
-
HEL
18h 20m1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m1 stop
$392Icelandair
Sat, Mar 7 - Tue, Mar 17
Icelandair Logo
7:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 10:35 am
HEL
-
BOS
27h 40m1 stop
$393Icelandair
Mon, Feb 16 - Fri, Feb 20
Icelandair Logo
7:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 5:50 pm
HEL
-
BOS
10h 55m1 stop
$410Icelandair
Sun, Jan 11 - Fri, Jan 16
Icelandair Logo
7:50 pm - 12:55 pm
BOS
-
HEL
10h 05m1 stop
Icelandair Logo
1:55 pm - 5:50 pm
HEL
-
BOS
10h 55m1 stop
$411Icelandair
Fri, Feb 6 - Sun, Feb 15
Scandinavian Airlines Logo
5:35 pm - 10:40 am
BOS
-
HEL
10h 05m1 stop
Scandinavian Airlines Logo
6:15 am - 3:50 pm
HEL
-
BOS
16h 35m1 stop
$436Scandinavian Airlines
Sun, Feb 8 - Sun, Feb 15

Scandinavian Airlines flights from Boston to Helsinki

Our best Scandinavian Airlines deals on Boston to Helsinki flight tickets
Scandinavian Airlines
Feb 8
BOS5:35 pmBoston Logan Intl
10h 05m
1 stop
HEL10:40 amHelsinki-Vantaa
Feb 15
HEL6:15 amHelsinki-Vantaa
16h 35m
1 stop
BOS3:50 pmBoston Logan Intl
$436
Find similar
Scandinavian Airlines
Feb 8
BOS5:35 pmBoston Logan Intl
14h 50m
1 stop
HEL3:25 pmHelsinki-Vantaa
Feb 15
HEL7:40 pmHelsinki-Vantaa
27h 10m
2 stops
BOS3:50 pmBoston Logan Intl
$442
Find similar
Scandinavian Airlines
Feb 8
BOS5:35 pmBoston Logan Intl
14h 50m
1 stop
HEL3:25 pmHelsinki-Vantaa
Feb 17
HEL6:15 amHelsinki-Vantaa
16h 35m
1 stop
BOS3:50 pmBoston Logan Intl
$445
Find similar

Finnair flights from Boston to Helsinki

Our best Finnair deals on Boston to Helsinki flight tickets
Finnair
Mar 18
BOS7:06 pmBoston Logan Intl
12h 49m
1 stop
HEL1:55 pmHelsinki-Vantaa
Mar 23
HEL5:00 pmHelsinki-Vantaa
11h 48m
1 stop
BOS10:48 pmBoston Logan Intl
$457
Find similar
Finnair
Mar 24
BOS7:06 pmBoston Logan Intl
12h 49m
1 stop
HEL1:55 pmHelsinki-Vantaa
Mar 31
HEL5:20 pmHelsinki-Vantaa
12h 28m
1 stop
BOS10:48 pmBoston Logan Intl
$466
Find similar
Finnair
Jan 31
BOS7:35 pmBoston Logan Intl
11h 20m
1 stop
HEL1:55 pmHelsinki-Vantaa
Feb 9
HEL4:50 pmHelsinki-Vantaa
13h 06m
1 stop
BOS10:56 pmBoston Logan Intl
$475
Find similar

momondo 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, momondo users made 832,500 searches. Data last updated December 18, 2025.
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

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

$359

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 2/25

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Tue 3/3

1:55 pm-5:50 pm

1 stop10h 55m

$362

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 2/5

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Fri 2/20

1:55 pm-10:35 am

1 stop27h 40m

$363

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

Mon 3/9

8:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Wed 3/18

1:55 pm-6:50 pm

1 stop10h 55m

$369

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sat 3/7

11:35 am-12:55 pm

1 stop18h 20m

Helsinki-Vantaa

Tue 3/17

1:55 pm-6:50 pm

1 stop10h 55m

$392

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Mon 2/16

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Fri 2/20

1:55 pm-10:35 am

1 stop27h 40m

$393

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 1/11

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Fri 1/16

1:55 pm-5:50 pm

1 stop10h 55m

$410

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Fri 2/6

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Sun 2/15

1:55 pm-5:50 pm

1 stop10h 55m

$411

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 2/8

5:35 pm-10:40 am

1 stop10h 05m

Helsinki-Vantaa

Sun 2/15

6:15 am-3:50 pm

1 stop16h 35m

$436

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Helsinki from

How to get the cheapest flight ticket from Boston to Helsinki

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Helsinki?

The month of December is, on average, the cheapest month to fly to Helsinki from Boston, with most prices found around $379. If you aren’t able to travel during the month of December, then book flights to Helsinki from Boston during November instead. Flights to Helsinki in November, while not as cheap as those in December, still average around $443.

What is the cheapest day to depart on your flight to Helsinki?

The cheapest day to depart on your flight to Helsinki is on a Tuesday when prices can be found for as low as $403. This is often the case because there is less demand to fly during this day of the week. Flights from Boston to Helsinki on a Friday will generally be more expensive and average around $742. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

What is the cheapest time of day to depart on your flight to Helsinki?

According to our data, the cheapest time of day to fly to Helsinki is in the evening. momondo users have found flights departing from Boston to Helsinki in the evening for as low as $527. Keep in mind that these prices may fluctuate based on what airline you choose and the time of year you plan to travel. At noon is when there is more demand to fly to Helsinki, so prices are often more expensive at around $2,250 per ticket.

How far in advance should I book a flight to Helsinki?

You are more likely to see cheaper flights to Helsinki from Boston when booking weeks ahead of your departure date. In general, you can expect to find flights to Helsinki for around $558 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Helsinki from Boston for as low as $459 on momondo.

How have Boston to Helsinki flight prices changed over time?

As of December 2025, prices for Boston to Helsinki flights are approximately 39% cheaper when compared to flights at the same time last year.

When to book flights from Boston to Helsinki

Are you open to changing your travel dates? Check out the ideal times to fly from Boston to Helsinki according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Boston to Helsinki (BOS to HEL) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Boston to Helsinki

Fastest flight time

9h 55m

Direct flights

None
The fastest flight from Boston to Helsinki takes 9h 55m
There are no direct flights from Boston to Helsinki. There are no popular flight routes from Boston to Helsinki.
Search flight deals

  • How far is Boston Logan Intl to Helsinki-Vantaa by plane?

    Helsinki-Vantaa is 3928.7 mi away from Boston Logan Intl. A reasonable flight in good conditions will take 9h 55m.

  • When did momondo last update prices for flights from Boston Logan Intl Airport to Helsinki-Vantaa Airport?

    Prices for flights from Boston Logan Intl Airport to Helsinki-Vantaa Airport are refreshed on a daily basis.

  • How many operators does momondo search for flights from Boston Logan Intl Airport to Helsinki-Vantaa Airport?

  • How old do you have to be to fly from Boston Logan Intl Airport to Helsinki-Vantaa Airport?

    The minimum age a child must be to fly alone is five but airlines that offer an unaccompanied minor (UNMR) service will have their own age restrictions, including rules around flight length, timings, and stopovers. We always recommend checking with the individual airline you are booking with to travel from Boston Logan Intl Airport to Helsinki-Vantaa Airport.

  • What documentation or ID do you need to fly to Helsinki-Vantaa Airport?

    The required travel and health documents for your Helsinki-Vantaa Airport trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Helsinki-Vantaa Airport. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

  • What is the most popular airline from Boston to Helsinki?

Best airlines flying from Boston to Helsinki

Compare and see reviews for airlines that fly from Boston to Helsinki with momondo
Airline
Rating
Free Cancellation
Price
American AirlinesPriceFrom $331Free CancellationRating
7.2
11,055 reviews
Search American Airlines flights
FinnairPriceFrom $351Free CancellationRating
7.6
1,338 reviews
Search Finnair flights
IcelandairPriceFrom $356Free CancellationRating
7.0
591 reviews
Search Icelandair flights
Air FrancePriceFrom $366Free CancellationRating
7.4
1,507 reviews
Search Air France flights
DeltaPriceFrom $410Free CancellationRating
7.9
8,005 reviews
Search Delta flights
United AirlinesPriceFrom $429Free CancellationRating
7.4
9,093 reviews
Search United Airlines flights
KLMPriceFrom $430Free CancellationRating
7.7
1,428 reviews
Search KLM flights
Scandinavian AirlinesPriceFrom $437Free CancellationRating
7.4
1,607 reviews
Search Scandinavian Airlines flights
British AirwaysPriceFrom $446Free CancellationRating
6.7
7,585 reviews
Search British Airways flights
LufthansaPriceFrom $473Free CancellationRating
6.8
7,635 reviews
Search Lufthansa flights

Traveling to a place near Helsinki?

Book flights to Helsinki if you plan to visit one of these locations
Vantaa
Espoo
Lahti
Kotka

Why use momondo?

Why should I use momondo to find a flight deal from Boston to Helsinki?

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Boston to Helsinki. Millions of users trust and use momondo every year so you are in good hands.

Can I find flights from Boston to Helsinki with flexible booking policies on momondo?

Yes. momondo allows you to filter the results for Boston to Helsinki flights to just show those with flexible booking policies.

How can momondo help me find flights from Boston to Helsinki?

momondo provides multiple filters to help you find the best flight to Helsinki from Boston. Filter by price, airline, airports, cabin, aircraft, payment method, number of stops and more.

I’m not ready to book a flight from Boston to Helsinki right now. Can momondo alert me if prices change?

Price alerts on flights to Helsinki from Boston are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.

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