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

Return flights

16 Sep - 28 Sep	easyJet
30 Sep - 03 Oct	easyJet
08 Sep - 03 Oct	Transavia France
23 Sep - 02 Oct	Wizz Air Malta
16 Sep - 23 Sep	easyJet
24 Sep - 01 Oct	Wizz Air Malta
17 Sep - 24 Sep	Ryanair
09 Sep - 21 Sep	easyJet
25 Sep - 02 Oct	Ryanair
15 Sep - 24 Sep	Wizz Air Malta
15 Sep - 21 Sep	easyJet
30 Sep - 05 Oct	easyJet
22 Sep - 24 Sep	Wizz Air Malta
10 Sep - 20 Sep	Ryanair
22 Sep - 28 Sep	easyJet
23 Sep - 30 Sep	easyJet
30 Sep - 08 Oct	easyJet
28 Sep - 06 Oct	Wizz Air Malta
29 Sep - 02 Oct	Ryanair
30 Sep - 04 Oct	easyJet

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Rome to Keflavik in September from 186€

Return flights