Boston (BOS) to Helsinki (HEL) flight deal in economy from $375
$646 USD
-42%$375 USD
Verified 1 day agoJuly 2026
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Fair Availability
25% of dates checked are available within 10% of the lowest price
Friday, July 31st, 2026
10 round-trip options
Returning
Wed, Aug 5, 2026•5 Day Trip
$864 USD
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Thu, Aug 6, 2026•6 Day Trip
$864 USD
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Fri, Aug 7, 2026•7 Day Trip
$1,292 USD
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Sat, Aug 8, 2026•8 Day Trip
$822 USD
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Sun, Aug 9, 2026•9 Day Trip
$864 USD
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Mon, Aug 10, 2026•10 Day Trip
$822 USD
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Tue, Aug 11, 2026•11 Day Trip
$929 USD
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Wed, Aug 12, 2026•12 Day Trip
$864 USD
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Thu, Aug 13, 2026•13 Day Trip
$1,232 USD
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Fri, Aug 14, 2026•14 Day Trip
$1,594 USD