Boston (BOS) to Helsinki (HEL) flight deal in economy from $391
$713 USD
-45%$391 USD
Verified 12 days agoDecember 2026
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Rare Availability
6% of dates checked are available within 10% of the lowest price
Monday, December 14th, 2026
3 round-trip options
Returning
Sat, Dec 19, 2026•5 Day Trip
$866 USD
Returning
Sun, Dec 20, 2026•6 Day Trip
$866 USD
Returning
Fri, Dec 25, 2026•11 Day Trip
$690 USD