AirHint found the following cheapest return flights from Nice (NCE) to Keflavik (KEF) in May 2026 (see full year).

Return flights

27 May - 08 Jun	SWISS
27 May - 09 Jun	SWISS
08 May - 17 May	easyJet
11 May - 20 May	easyJet
27 May - 10 Jun	SWISS
25 May - 30 May	Vueling Airlines
28 May - 09 Jun	Lufthansa
26 May - 09 Jun	Austrian Airlines
11 May - 20 May	Icelandair	direct
25 May - 09 Jun	Lufthansa
27 May - 10 Jun	Icelandair	direct
27 May - 08 Jun	Icelandair	direct

Also check the deals for one-way flights from Nice to Keflavik in May.

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 May from $286

Return flights