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

Return flights

14 Aug - 19 Aug	airBaltic
20 Aug - 25 Aug	airBaltic
13 Aug - 20 Aug	airBaltic
18 Aug - 25 Aug	airBaltic
18 Aug - 20 Aug	airBaltic
09 Aug - 23 Aug	airBaltic
17 Aug - 23 Aug	airBaltic
13 Aug - 18 Aug	airBaltic
14 Aug - 18 Aug	airBaltic
28 Aug - 03 Sep	KLM
21 Aug - 27 Aug	KLM
28 Aug - 01 Sep	KLM
23 Aug - 01 Sep	airBaltic
28 Aug - 03 Sep	Finnair	direct
28 Aug - 01 Sep	Finnair	direct

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

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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Cheapest return flights from Zurich to Helsinki in August from 189€

Return flights