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

Saturday, January 30th, 2027

3 round-trip options

Returning
Fri, Feb 5, 20276 Day Trip
$531 USD
Returning
Sat, Feb 6, 20277 Day Trip
$525 USD
Returning
Tue, Feb 9, 202710 Day Trip
$531 USD