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

Thursday, August 6th, 2026

3 round-trip options

Returning
Fri, Aug 14, 20268 Day Trip
$1,200 USD
Returning
Sun, Aug 16, 202610 Day Trip
$1,278 USD
Returning
Wed, Aug 19, 202613 Day Trip
$1,417 USD