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

Friday, November 13th, 2026

3 round-trip options

Returning
Wed, Nov 18, 20265 Day Trip
$582 USD
Returning
Thu, Nov 19, 20266 Day Trip
$492 USD
Returning
Tue, Nov 24, 202611 Day Trip
$492 USD