Boston (BOS) to Helsinki (HEL) flight deal in economy from $375
$646 USD
-42%$375 USD
Verified about 21 hours agoOctober 2026
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Fair Availability
25% of dates checked are available within 10% of the lowest price
Saturday, October 10th, 2026
9 round-trip options
Returning
Thu, Oct 15, 2026•5 Day Trip
$546 USD
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Fri, Oct 16, 2026•6 Day Trip
$546 USD
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Sat, Oct 17, 2026•7 Day Trip
$530 USD
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Sun, Oct 18, 2026•8 Day Trip
$820 USD
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Mon, Oct 19, 2026•9 Day Trip
$546 USD
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Tue, Oct 20, 2026•10 Day Trip
$546 USD
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Wed, Oct 21, 2026•11 Day Trip
$546 USD
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Thu, Oct 22, 2026•12 Day Trip
$546 USD
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Sat, Oct 24, 2026•14 Day Trip
$546 USD