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
Sunday, August 23rd, 2026
3 round-trip options
Returning
Mon, Aug 31, 2026•8 Day Trip
$980 USD
Returning
Wed, Sep 2, 2026•10 Day Trip
$626 USD
Returning
Sat, Sep 5, 2026•13 Day Trip
$607 USD