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

Monday, January 4th, 2027

3 round-trip options

Returning
Sun, Jan 10, 20276 Day Trip
$913 USD
Returning
Mon, Jan 11, 20277 Day Trip
$690 USD
Returning
Thu, Jan 14, 202710 Day Trip
$690 USD