AirHint found the following cheapest return flights from Zurich (ZRH) to Kos (KGS) in October 2025 (see full year).

Return flights

19 Oct - 26 Oct	Chair Airlines
23 Oct - 27 Oct	Chair Airlines
22 Oct - 29 Oct	easyJet
06 Oct - 17 Oct	Aer Lingus
06 Oct - 13 Oct	Aer Lingus
20 Oct - 26 Oct	Aegean Airlines
20 Oct - 27 Oct	Aegean Airlines
18 Oct - 25 Oct	edelweiss air
01 Oct - 08 Oct	Aegean Airlines
08 Oct - 16 Oct	easyJet
25 Oct - 01 Nov	SWISS

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

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 Kos in October from 213€

Return flights