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

Return flights

21 Oct - 27 Oct	easyJet
25 Oct - 29 Oct	easyJet
21 Oct - 28 Oct	easyJet
16 Oct - 22 Oct	KLM
07 Oct - 12 Oct	easyJet
20 Oct - 24 Oct	Vueling Airlines
04 Oct - 12 Oct	easyJet
16 Oct - 20 Oct	Icelandair	direct
06 Oct - 12 Oct	Wizz Air
16 Oct - 23 Oct	Icelandair	direct

Also check the deals for one-way flights from Nice 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 Nice to Keflavik in October from 137€

Return flights