Cheapest return flights from Rome to Keflavik in September from $245

Best time to book flights for Rome (CIA) to Keflavik (KEF) flights at AirHint

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

Return flights

24 Sep - 02 Oct Ryanair
16 Sep - 23 Sep Ryanair
03 Sep - 09 Sep Ryanair
10 Sep - 14 Sep Ryanair
10 Sep - 18 Sep Ryanair
03 Sep - 10 Sep Ryanair
10 Sep - 13 Sep Ryanair
04 Sep - 10 Sep Ryanair
26 Sep - 01 Oct Ryanair
24 Sep - 28 Sep Ryanair
05 Sep - 10 Sep Ryanair
11 Sep - 14 Sep Ryanair
29 Sep - 08 Oct Ryanair
27 Sep - 04 Oct Ryanair
29 Sep - 09 Oct Ryanair
26 Sep - 03 Oct Ryanair
28 Sep - 05 Oct Ryanair

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

Skyscanner

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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