Cheapest return flights from Boston to Helsinki in August from 603€

Best time to book flights for Boston (BOS) to Helsinki (HEL) flights at AirHint

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

Return flights

14 Aug - 21 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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