Boston (BOS) to Helsinki (HEL) flight deal in economy from $391

Thursday, January 14th, 2027

3 round-trip options

Returning
Wed, Jan 20, 20276 Day Trip
$531 USD
Returning
Thu, Jan 21, 20277 Day Trip
$525 USD
Returning
Sun, Jan 24, 202710 Day Trip
$539 USD