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

Return flights

22 Sep - 30 Sep	Wizz Air
18 Sep - 25 Sep	Scandinavian Airlines
30 Sep - 07 Oct	easyJet
15 Sep - 29 Sep	Vueling Airlines
15 Sep - 22 Sep	Vueling Airlines
08 Sep - 18 Sep	Vueling Airlines
15 Sep - 18 Sep	Vueling Airlines
04 Sep - 08 Sep	KLM
02 Sep - 06 Sep	easyJet
04 Sep - 08 Sep	Icelandair	direct
15 Sep - 29 Sep	Icelandair	direct

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

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Nice to Keflavik in September from 237€

Return flights