Cheapest return flights from Boston to Helsinki in October from $386

AirHint found the following cheapest return flights from Boston (BOS) to Helsinki (HEL) in October 2025 (see full year).

Return flights

26 Oct - 31 Oct Icelandair
27 Oct - 31 Oct Icelandair
27 Oct - 03 Nov Icelandair
22 Oct - 29 Oct Icelandair
07 Oct - 14 Oct Scandinavian Airlines
17 Oct - 24 Oct Icelandair
10 Oct - 14 Oct Scandinavian Airlines
12 Oct - 19 Oct Icelandair
02 Oct - 09 Oct Scandinavian Airlines

Also check the deals for one-way flights from Boston to Helsinki in October.

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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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