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

Monday, November 2nd, 2026

3 round-trip options

Returning
Sat, Nov 7, 20265 Day Trip
$588 USD
Returning
Sun, Nov 8, 20266 Day Trip
$588 USD
Returning
Fri, Nov 13, 202611 Day Trip
$588 USD