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

Return flights

16 Sep - 27 Sep	Wizz Air
07 Sep - 22 Sep	Wizz Air
29 Sep - 06 Oct	Wizz Air
17 Sep - 27 Sep	Wizz Air
29 Sep - 07 Oct	Wizz Air
19 Sep - 27 Sep	Wizz Air
23 Sep - 07 Oct	Wizz Air
14 Sep - 22 Sep	easyJet
20 Sep - 27 Sep	Wizz Air
26 Sep - 04 Oct	Wizz Air Malta
09 Sep - 16 Sep	Wizz Air
19 Sep - 30 Sep	Wizz Air
07 Sep - 15 Sep	Wizz Air
08 Sep - 15 Sep	Wizz Air
27 Sep - 04 Oct	Wizz Air
20 Sep - 01 Oct	Wizz Air
27 Sep - 05 Oct	KLM
30 Sep - 07 Oct	Vueling Airlines
19 Sep - 07 Oct	Vueling Airlines
30 Sep - 14 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 179€

Return flights