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

Return flights

02 Dec - 09 Dec	Wizz Air Malta
08 Dec - 12 Dec	easyJet
01 Dec - 08 Dec	easyJet
04 Dec - 08 Dec	easyJet
09 Dec - 16 Dec	Wizz Air Malta
01 Dec - 05 Dec	easyJet
09 Dec - 13 Dec	Wizz Air Malta
05 Dec - 10 Dec	Wizz Air
04 Dec - 11 Dec	easyJet
02 Dec - 06 Dec	easyJet
28 Dec - 03 Jan	LOT
26 Dec - 02 Jan	Wizz Air
29 Dec - 02 Jan	Lufthansa
29 Dec - 03 Jan	Lufthansa
29 Dec - 04 Jan	Scandinavian Airlines
27 Dec - 03 Jan	Lufthansa

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

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 December from 150€

Return flights