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

Return flights

15 Oct - 22 Oct	KLM
22 Oct - 25 Oct	Scandinavian Airlines
23 Oct - 31 Oct	Scandinavian Airlines
29 Oct - 07 Nov	Scandinavian Airlines
16 Oct - 23 Oct	Scandinavian Airlines
16 Oct - 22 Oct	Scandinavian Airlines
02 Oct - 05 Oct	easyJet
11 Oct - 19 Oct	LOT
11 Oct - 17 Oct	LOT
01 Oct - 13 Oct	LOT
07 Oct - 11 Oct	easyJet
27 Oct - 01 Nov	easyJet

Also check the deals for one-way flights from Geneva 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 Geneva to Keflavik in October from 183€

Return flights