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

Thursday, November 5th, 2026

3 round-trip options

Returning
Tue, Nov 10, 20265 Day Trip
$588 USD
Returning
Wed, Nov 11, 20266 Day Trip
$582 USD
Returning
Mon, Nov 16, 202611 Day Trip
$492 USD