Cheapest return flights from San Francisco to Helsinki in August from $868

Best time to book flights for San Francisco (SFO) to Helsinki (HEL) flights at AirHint

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

Return flights

28 Aug - 11 Sep Scandinavian Airlines

Also check the deals for one-way flights from San Francisco 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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