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

Saturday, August 22nd, 2026

3 round-trip options

Returning
Sun, Aug 30, 20268 Day Trip
$1,839 USD
Returning
Tue, Sep 1, 202610 Day Trip
$1,168 USD
Returning
Fri, Sep 4, 202613 Day Trip
$1,184 USD