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

Thursday, November 19th, 2026

3 round-trip options

Returning
Tue, Nov 24, 20265 Day Trip
$468 USD
Returning
Wed, Nov 25, 20266 Day Trip
$553 USD
Returning
Mon, Nov 30, 202611 Day Trip
$531 USD