AirHint found the following cheapest return flights from Rome (FCO) to Keflavik (KEF) in September 2026 (see full year).

Return flights

30 Sep - 10 Oct	Wizz Air
14 Sep - 22 Sep	easyJet
13 Sep - 22 Sep	Wizz Air
23 Sep - 30 Sep	Wizz Air
18 Sep - 22 Sep	Wizz Air
08 Sep - 19 Sep	Wizz Air
08 Sep - 16 Sep	Wizz Air Malta
07 Sep - 19 Sep	easyJet
07 Sep - 15 Sep	easyJet
08 Sep - 13 Sep	Wizz Air
07 Sep - 16 Sep	Transavia France
17 Sep - 01 Oct	Wizz Air
26 Sep - 03 Oct	Wizz Air
27 Sep - 04 Oct	Wizz Air
29 Sep - 09 Oct	Wizz Air
30 Sep - 09 Oct	Wizz Air
28 Sep - 09 Oct	ITA Airways
26 Sep - 10 Oct	Vueling Airlines
30 Sep - 14 Oct	Vueling Airlines
30 Sep - 03 Oct	Vueling Airlines

Also check the deals for one-way flights from Rome 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.

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Cheapest return flights from Rome to Keflavik in September from 188€

Return flights