Cheapest return flights from Boston to Helsinki in October from 282€

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

Return flights

28 Oct - 04 Nov British Airways
20 Oct - 04 Nov British Airways
15 Oct - 22 Oct Icelandair
29 Oct - 05 Nov Icelandair
13 Oct - 20 Oct Scandinavian Airlines
31 Oct - 07 Nov Icelandair
16 Oct - 19 Oct British Airways
23 Oct - 30 Oct Scandinavian Airlines
25 Oct - 01 Nov Scandinavian Airlines
17 Oct - 24 Oct Scandinavian Airlines
11 Oct - 18 Oct Scandinavian Airlines
19 Oct - 26 Oct Scandinavian Airlines
09 Oct - 16 Oct Scandinavian Airlines
05 Oct - 12 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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