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

Return flights

02 Oct - 09 Oct	Ryanair
14 Oct - 20 Oct	Ryanair
04 Oct - 09 Oct	Ryanair
16 Oct - 22 Oct	Ryanair
02 Oct - 08 Oct	Ryanair
02 Oct - 07 Oct	Ryanair
02 Oct - 06 Oct	Ryanair
09 Oct - 14 Oct	Ryanair
04 Oct - 07 Oct	Ryanair
01 Oct - 07 Oct	Ryanair
18 Oct - 04 Nov	Ryanair
31 Oct - 03 Nov	Ryanair
24 Oct - 04 Nov	Ryanair
17 Oct - 03 Nov	Ryanair
20 Oct - 03 Nov	Ryanair
23 Oct - 03 Nov	Ryanair
30 Oct - 02 Nov	Ryanair
19 Oct - 02 Nov	Ryanair

Also check the deals for one-way flights from Rome 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 Rome to Keflavik in October from 209€

Return flights