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

Saturday, November 7th, 2026

3 round-trip options

Returning
Thu, Nov 12, 20265 Day Trip
$588 USD
Returning
Fri, Nov 13, 20266 Day Trip
$588 USD
Returning
Wed, Nov 18, 202611 Day Trip
$582 USD