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

Saturday, August 1st, 2026

3 round-trip options

Returning
Sun, Aug 9, 20268 Day Trip
$1,677 USD
Returning
Tue, Aug 11, 202610 Day Trip
$1,576 USD
Returning
Fri, Aug 14, 202613 Day Trip
$1,701 USD