Boston (BOS) to Helsinki (HEL) flight deal in economy from $375
$646 USD
-42%$375 USD
Verified about 24 hours agoJune 2026
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Fair Availability
25% of dates checked are available within 10% of the lowest price
Thursday, June 18th, 2026
10 round-trip options
Returning
Tue, Jun 23, 2026•5 Day Trip
$1,458 USD
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Wed, Jun 24, 2026•6 Day Trip
$1,650 USD
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Thu, Jun 25, 2026•7 Day Trip
$1,458 USD
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Fri, Jun 26, 2026•8 Day Trip
$1,508 USD
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Sat, Jun 27, 2026•9 Day Trip
$1,376 USD
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Sun, Jun 28, 2026•10 Day Trip
$1,458 USD
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Mon, Jun 29, 2026•11 Day Trip
$1,376 USD
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Tue, Jun 30, 2026•12 Day Trip
$1,563 USD
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Wed, Jul 1, 2026•13 Day Trip
$1,953 USD
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Thu, Jul 2, 2026•14 Day Trip
$1,916 USD