Cheapest return flights from Boston to Helsinki in August from 355€

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

Return flights

27 Aug - 03 Sep Icelandair
21 Aug - 28 Aug Icelandair
19 Aug - 26 Aug Icelandair
24 Aug - 01 Sep Lufthansa
29 Aug - 11 Sep Icelandair
26 Aug - 17 Sep Delta
25 Aug - 01 Sep Scandinavian Airlines
31 Aug - 07 Sep Scandinavian Airlines
22 Aug - 01 Sep Brussels Airlines
23 Aug - 30 Aug Icelandair
29 Aug - 05 Sep Icelandair
17 Aug - 24 Aug Scandinavian Airlines

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

Skyscanner

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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