Boston (BOS) to Helsinki (HEL) flight deal in economy from $391
$713 USD
-45%$391 USD
Verified 12 days agoAugust 2026
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Rare Availability
6% of dates checked are available within 10% of the lowest price
Tuesday, August 11th, 2026
3 round-trip options
Returning
Wed, Aug 19, 2026•8 Day Trip
$1,439 USD
Returning
Fri, Aug 21, 2026•10 Day Trip
$955 USD
Returning
Mon, Aug 24, 2026•13 Day Trip
$1,140 USD
