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Cheap flights from Boston to Helsinki from $193

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 5/5. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
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
12:35 pm - 12:55 pm
BOS
-
HEL
18h 20m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$311Icelandair
Thu, Mar 19 - Wed, Apr 1
Icelandair Logo
12:35 pm - 12:55 pm
BOS
-
HEL
18h 20m
1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m
1 stop
$359Icelandair
Thu, Mar 19 - Thu, Mar 26
Icelandair Logo
8:50 pm - 12:55 pm
BOS
-
HEL
10h 05m
1 stop
Icelandair Logo
3:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$362Icelandair
Thu, Mar 19 - Wed, Apr 1
Icelandair Logo
12:35 pm - 12:55 pm
BOS
-
HEL
18h 20m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$363Icelandair
Thu, Mar 19 - Wed, Apr 1
Icelandair Logo
8:50 pm - 12:55 pm
BOS
-
HEL
10h 05m
1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m
1 stop
$366Icelandair
Tue, Mar 10 - Wed, Mar 18
Icelandair Logo
7:50 pm - 12:55 pm
BOS
-
HEL
10h 05m
1 stop
Icelandair Logo
1:55 pm - 6:50 pm
HEL
-
BOS
10h 55m
1 stop
$367Icelandair
Tue, Mar 3 - Tue, Mar 10
Icelandair Logo
8:50 pm - 12:55 pm
BOS
-
HEL
10h 05m
1 stop
Icelandair Logo
1:55 pm - 11:35 am
HEL
-
BOS
27h 40m
1 stop
$369Icelandair
Tue, Mar 10 - Tue, Mar 17
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
3:00 pm - 6:50 pm
HEL
-
BOS
10h 50m
1 stop
$375Icelandair
Wed, Apr 29 - Tue, May 5
Icelandair Logo
11:00 pm - 2:00 pm
BOS
-
HEL
32h 00m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$376Icelandair
Sun, Apr 5 - Sun, Apr 19
Icelandair Logo
8:50 pm - 2:00 pm
BOS
-
HEL
10h 10m
1 stop
Icelandair Logo
3:00 pm - 9:45 pm
HEL
-
BOS
13h 45m
1 stop
$381Icelandair
Thu, Apr 2 - Mon, Apr 6

Icelandair flights from Boston to Helsinki

Our best Icelandair deals on Boston to Helsinki flight tickets
Icelandair
Mar 19
BOS12:35 pmBoston Logan Intl
18h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Apr 1
HEL3:00 pmHelsinki-Vantaa
13h 45m
1 stop
BOS9:45 pmBoston Logan Intl
$311
Icelandair
Mar 19
BOS12:35 pmBoston Logan Intl
18h 20m
1 stop
HEL12:55 pmHelsinki-Vantaa
Mar 26
HEL1:55 pmHelsinki-Vantaa
10h 55m
1 stop
BOS6:50 pmBoston Logan Intl
$359
Icelandair
Mar 19
BOS8:50 pmBoston Logan Intl
10h 05m
1 stop
HEL12:55 pmHelsinki-Vantaa
Apr 1
HEL3:00 pmHelsinki-Vantaa
10h 50m
1 stop
BOS6:50 pmBoston Logan Intl
$362

Scandinavian Airlines flights from Boston to Helsinki

Our best Scandinavian Airlines deals on Boston to Helsinki flight tickets
Scandinavian Airlines
Apr 2
BOS5:40 pmBoston Logan Intl
38h 00m
2 stops
HEL2:40 pmHelsinki-Vantaa
Apr 6
HEL9:05 pmHelsinki-Vantaa
25h 30m
1 stop
BOS3:35 pmBoston Logan Intl
$437
Scandinavian Airlines
Apr 29
BOS5:40 pmBoston Logan Intl
15h 20m
2 stops
HEL4:00 pmHelsinki-Vantaa
May 5
HEL9:15 pmHelsinki-Vantaa
25h 20m
2 stops
BOS3:35 pmBoston Logan Intl
$438
Scandinavian Airlines
Mar 10
BOS6:35 pmBoston Logan Intl
10h 05m
1 stop
HEL10:40 amHelsinki-Vantaa
Mar 18
HEL8:55 pmHelsinki-Vantaa
25h 55m
2 stops
BOS4:50 pmBoston Logan Intl
$446

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 February 3, 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

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 3/19

12:35 pm-12:55 pm

1 stop18h 20m

Helsinki-Vantaa

Wed 4/1

3:00 pm-9:45 pm

1 stop13h 45m

$311

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 3/19

12:35 pm-12:55 pm

1 stop18h 20m

Helsinki-Vantaa

Thu 3/26

1:55 pm-6:50 pm

1 stop10h 55m

$359

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 3/19

8:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Wed 4/1

3:00 pm-6:50 pm

1 stop10h 50m

$362

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 3/19

12:35 pm-12:55 pm

1 stop18h 20m

Helsinki-Vantaa

Wed 4/1

3:00 pm-9:45 pm

1 stop13h 45m

$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

$366

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 3/3

7:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Tue 3/10

1:55 pm-6:50 pm

1 stop10h 55m

$367

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Tue 3/10

8:50 pm-12:55 pm

1 stop10h 05m

Helsinki-Vantaa

Tue 3/17

1:55 pm-11:35 am

1 stop27h 40m

$369

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Wed 4/29

8:50 pm-2:00 pm

1 stop10h 10m

Helsinki-Vantaa

Tue 5/5

3:00 pm-6:50 pm

1 stop10h 50m

$375

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Sun 4/5

11:00 pm-2:00 pm

1 stop32h 00m

Helsinki-Vantaa

Sun 4/19

3:00 pm-9:45 pm

1 stop13h 45m

$376

BostonHelsinki

BOS - HEL

BOSHEL

Boston Logan Intl

Thu 4/2

8:50 pm-2:00 pm

1 stop10h 10m

Helsinki-Vantaa

Mon 4/6

3:00 pm-9:45 pm

1 stop13h 45m

$381

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

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 typical price of a round-trip flight between Boston and Helsinki?

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 $431.

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 $562 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 February 2026, prices for Boston to Helsinki flights are approximately 32% 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
11,213 reviews
Search American Airlines flights
FinnairPriceFrom $349Free CancellationRating
7.6
1,357 reviews
Search Finnair flights
IcelandairPriceFrom $355Free CancellationRating
7.1
606 reviews
Search Icelandair flights
Air FrancePriceFrom $366Free CancellationRating
7.4
1,531 reviews
Search Air France flights
United AirlinesPriceFrom $392Free CancellationRating
7.4
9,231 reviews
Search United Airlines flights
DeltaPriceFrom $410Free CancellationRating
7.9
8,133 reviews
Search Delta flights
KLMPriceFrom $430Free CancellationRating
7.7
1,448 reviews
Search KLM flights
British AirwaysPriceFrom $446Free CancellationRating
6.7
7,711 reviews
Search British Airways flights
Scandinavian AirlinesPriceFrom $457Free CancellationRating
7.3
1,676 reviews
Search Scandinavian Airlines flights
LufthansaPriceFrom $473Free CancellationRating
6.8
7,758 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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