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

Sunday, January 3rd, 2027

3 round-trip options

Returning
Sat, Jan 9, 20276 Day Trip
$814 USD
Returning
Sun, Jan 10, 20277 Day Trip
$844 USD
Returning
Wed, Jan 13, 202710 Day Trip
$598 USD