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

Tuesday, November 17th, 2026

3 round-trip options

Returning
Sun, Nov 22, 20265 Day Trip
$397 USD
Returning
Mon, Nov 23, 20266 Day Trip
$397 USD
Returning
Sat, Nov 28, 202611 Day Trip
$625 USD