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

Tuesday, November 10th, 2026

3 round-trip options

Returning
Sun, Nov 15, 20265 Day Trip
$588 USD
Returning
Mon, Nov 16, 20266 Day Trip
$492 USD
Returning
Sat, Nov 21, 202611 Day Trip
$492 USD