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

Saturday, January 2nd, 2027

3 round-trip options

Returning
Fri, Jan 8, 20276 Day Trip
$844 USD
Returning
Sat, Jan 9, 20277 Day Trip
$969 USD
Returning
Tue, Jan 12, 202710 Day Trip
$754 USD