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

Return flights

13 Aug - 15 Aug	Eurowings	direct
15 Aug - 17 Aug	Eurowings	direct
18 Aug - 24 Aug	Eurowings	direct
16 Aug - 24 Aug	Eurowings	direct
21 Aug - 24 Aug	Eurowings	direct
28 Aug - 31 Aug	Eurowings	direct
16 Aug - 17 Aug	Eurowings	direct
14 Aug - 17 Aug	Eurowings	direct
09 Aug - 15 Aug	Eurowings	direct
11 Aug - 17 Aug	Eurowings	direct
29 Aug - 02 Sep	Eurowings	direct
25 Aug - 01 Sep	Eurowings	direct

Also check the deals for one-way flights from Cologne to Zurich 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 Cologne to Zurich in August from $114

Return flights