Boston (BOS) to Helsinki (HEL) flight deal in economy from $375
$646 USD
-42%$375 USD
Verified about 24 hours agoJuly 2026
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Fair Availability
25% of dates checked are available within 10% of the lowest price
Thursday, July 9th, 2026
10 round-trip options
Returning
Tue, Jul 14, 2026•5 Day Trip
$899 USD
Returning
Wed, Jul 15, 2026•6 Day Trip
$910 USD
Returning
Thu, Jul 16, 2026•7 Day Trip
$828 USD
Returning
Fri, Jul 17, 2026•8 Day Trip
$1,364 USD
Returning
Sat, Jul 18, 2026•9 Day Trip
$981 USD
Returning
Sun, Jul 19, 2026•10 Day Trip
$1,042 USD
Returning
Mon, Jul 20, 2026•11 Day Trip
$739 USD
Returning
Tue, Jul 21, 2026•12 Day Trip
$943 USD
Returning
Wed, Jul 22, 2026•13 Day Trip
$778 USD
Returning
Thu, Jul 23, 2026•14 Day Trip
$842 USD