Find Cheap Flights from Boston (BOS) to Kauniainen (HEL) from €423

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Selected flight deals from Boston to Kauniainen

The lowest prices found within the past 7 days from Boston to Kauniainen were €247 for one-way flights and €423 for return flights, for the period specified. Prices and availability are subject to change. Additional terms apply.

Tue, 4 Aug - Mon, 10 Aug
BOS
Logan Intl.
HEL
Vantaa
€423 Return, found 22 hours ago
€423
Return
found 22 hours ago
Select Icelandair flight, departing Tue, 4 Aug from Logan Intl. to Vantaa, returning Mon, 10 Aug, priced at €423 found 22 hours ago
Thu, 6 Aug - Wed, 12 Aug
BOS
Logan Intl.
HEL
Vantaa
€467 Return, found 22 hours ago
€467
Return
found 22 hours ago
Select Delta flight, departing Thu, 6 Aug from Logan Intl. to Vantaa, returning Wed, 12 Aug, priced at €467 found 22 hours ago
Tue, 4 Aug - Sun, 9 Aug
BOS
Logan Intl.
HEL
Vantaa
€703 Return, found 22 hours ago
€703
Return
found 22 hours ago
Select Lufthansa flight, departing Tue, 4 Aug from Logan Intl. to Vantaa, returning Sun, 9 Aug, priced at €703 found 22 hours ago
Tue, 4 Aug - Sun, 9 Aug
BOS
Logan Intl.
HEL
Vantaa
€772 Return, found 22 hours ago
€772
Return
found 22 hours ago
Select Air France flight, departing Tue, 4 Aug from Logan Intl. to Vantaa, returning Sun, 9 Aug, priced at €772 found 22 hours ago
Tue, 4 Aug - Sun, 9 Aug
BOS
Logan Intl.
HEL
Vantaa
€952 Return, found 22 hours ago
€952
Return
found 22 hours ago
Select Scandinavian Airlines flight, departing Tue, 4 Aug from Logan Intl. to Vantaa, returning Sun, 9 Aug, priced at €952 found 22 hours ago
Cheap Flights from Boston to Kauniainen & Flight Information
Origin airport IATA code
BOS
Destination airport IATA code
HEL
Return price
€423

Best Day to Book Flight from Boston to Kauniainen

Kauniainen Flight Information

Traveling From
Boston
Origin Airport IATA Code
BOS
Traveling To
Kauniainen
Destination Airport IATA Code
HEL
Number of Airlines Serving
Available Airlines
Icelandair, Lufthansa, Delta, Austrian Airlines, Iberia, Air France, Scandinavian Airlines
Distance
Direct Flight Time
Flight Price
€423

Need a car after flight from Boston to Kauniainen

Economy

Chevrolet Spark
  • 4 people
Chevrolet Spark
Economy Chevrolet Spark

Compact

Ford Focus
  • 4 people
Ford Focus
Compact Ford Focus

Midsize

Toyota Corolla
  • 5 people
Toyota Corolla
Midsize Toyota Corolla

SUV

Jeep Compass
  • 5 people
Jeep Compass
SUV Jeep Compass

Place to stay after flight from Boston to Kauniainen

Scandic Grand Central Helsinki

Scandic Grand Central Helsinki

4 out of 5
Vilhonkatu 13 Helsinki
Yövy tässä hotellissa kohteessa Helsinki. Nauti aamiaisesta (lisämaksusta), kuntokeskuksesta ja ympäri vuorokauden auki olevasta vastaanotosta. Asiakkaamme kehuvat ...
9.4/10 Exceptional! (2,215 reviews)
"Absolutely beautiful hotel, well situated next to central rail station and in a very walkable location to many popular sites."

Reviewed on 12 Jul 2026

Opens in a new windowScandic Grand Central Helsinki
Clarion Hotel Helsinki

Clarion Hotel Helsinki

4.5 out of 5
Tyynenmerenkatu 2 Helsinki Uusimaa
Yövy tässä ylellisessä hotellissa kohteessa Helsinki. Nauti ilmaisesta Wi-Fi-yhteydestä, 3 baarista/loungesta ja aamiaisesta (lisämaksusta). Asiakkaamme kehuvat ...
9/10 Wonderful! (1,483 reviews)
"Beautiful views and great pool and sauna area. Breakfast was tasty but busy and restricted by time slots. Nice room and view"

Reviewed on 5 Jul 2026

Opens in a new windowClarion Hotel Helsinki
Marski by Scandic

Marski by Scandic

4 out of 5
Mannerheimintie 10 Helsinki
Yövy tässä hotellissa kohteessa Helsinki. Nauti ilmaisesta Wi-Fi-yhteydestä, aamiaisesta (lisämaksusta) ja huonepalvelusta. Asiakkaamme kehuvat majoituspaikan ...
9/10 Wonderful! (1,728 reviews)
"This hotel was so much better than what I expected. Absolutely amazing hotel! I would definitely come back for longer stay. The room was super clean and spacious. Also bathroom was exceptionally nice and clean. As room was so quiet and cosy, I slept so well."

Reviewed on 11 Jul 2026

Opens in a new windowMarski by Scandic
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VALO Hotel & Work Helsinki

VALO Hotel & Work Helsinki

4 out of 5
Mannerheimintie 109 Helsinki
Yövy tässä hotellissa kohteessa Helsinki. Nauti ilmaisesta Wi-Fi-yhteydestä, kattoterassista ja aamiaisesta (lisämaksusta). Asiakkaamme kehuvat majoituspaikan ...
9/10 Wonderful! (1,943 reviews)
"Very nice and cozy hotel, comfortable and good if you don't need to be in the center of Helsinki."

Reviewed on 20 Jun 2026

Opens in a new windowVALO Hotel & Work Helsinki
Radisson Blu Plaza Hotel, Helsinki

Radisson Blu Plaza Hotel, Helsinki

4.5 out of 5
Mikonkatu 23 Helsinki
Yövy tässä ylellisessä hotellissa kohteessa Helsinki. Nauti ilmaisesta Wi-Fi-yhteydestä, aamiaisesta (lisämaksusta) ja huonepalvelusta. Asiakkaamme kehuvat majoituspaikan ...
8.8/10 Excellent! (1,321 reviews)
"Very nice"

Reviewed on 13 Jul 2026

Opens in a new windowRadisson Blu Plaza Hotel, Helsinki
Clarion Hotel Helsinki Airport

Clarion Hotel Helsinki Airport

4 out of 5
Taivastie 3 Vantaa Vantaa
Yövy tässä hotellissa kohteessa Vantaa. Nauti aamiaisesta (lisämaksusta), kuntokeskuksesta ja paikan päällä olevista kylpyläpalveluista. Lähellä sijaitsevat ...
9.4/10 Exceptional! (1,390 reviews)
"Amazing stay, kind desk attendant, superior breakfast and amenities."

Reviewed on 13 Jul 2026

Opens in a new windowClarion Hotel Helsinki Airport
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Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

Terms & Conditions

Flight prices above are per person all prepaid taxes and online service fees included and subject to availability