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

Return flights

27 Oct - 04 Nov	easyJet
30 Oct - 08 Nov	easyJet
25 Oct - 27 Oct	easyJet
23 Oct - 30 Oct	Scandinavian Airlines
08 Oct - 12 Oct	LOT
17 Oct - 22 Oct	easyJet
31 Oct - 07 Nov	SWISS
18 Oct - 26 Oct	easyJet
16 Oct - 26 Oct	easyJet
23 Oct - 26 Oct	easyJet
12 Oct - 15 Oct	KLM
08 Oct - 18 Oct	easyJet
29 Oct - 02 Nov	easyJet
01 Oct - 09 Oct	easyJet
31 Oct - 03 Nov	SWISS
25 Oct - 01 Nov	easyJet
25 Oct - 02 Nov	Scandinavian Airlines
26 Oct - 01 Nov	KLM
19 Oct - 01 Nov	Aer Lingus
24 Oct - 02 Nov	Scandinavian Airlines

Also check the deals for one-way flights from Zurich to Keflavik 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 Keflavik in October from 233€

Return flights