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

Saturday, November 21st, 2026

3 round-trip options

Returning
Thu, Nov 26, 20265 Day Trip
$492 USD
Returning
Fri, Nov 27, 20266 Day Trip
$588 USD
Returning
Wed, Dec 2, 202611 Day Trip
$582 USD