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

Sunday, November 1st, 2026

3 round-trip options

Returning
Fri, Nov 6, 20265 Day Trip
$626 USD
Returning
Sat, Nov 7, 20266 Day Trip
$626 USD
Returning
Thu, Nov 12, 202611 Day Trip
$626 USD