Cheapest return KGS–ZRH flights, September

AirHint found the following cheapest return flights from Kos (KGS) to Zurich (ZRH) in September 2026 (see full year).

Return flights

24 Sep - 28 Sep Aegean Airlines
24 Sep - 28 Sep SWISS direct
13 Sep - 17 Sep Chair Airlines direct
13 Sep - 20 Sep Chair Airlines direct

Also check the deals for one-way flights from Kos to Zurich in September.

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