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

Friday, November 6th, 2026

3 round-trip options

Returning
Wed, Nov 11, 20265 Day Trip
$582 USD
Returning
Thu, Nov 12, 20266 Day Trip
$588 USD
Returning
Tue, Nov 17, 202611 Day Trip
$492 USD