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

Return flights

01 Dec - 04 Dec	Ryanair
03 Dec - 09 Dec	Ryanair
10 Dec - 13 Dec	Wizz Air
05 Dec - 11 Dec	Ryanair
01 Dec - 06 Dec	Ryanair
11 Dec - 13 Dec	Wizz Air Malta
13 Dec - 17 Dec	Wizz Air Malta
01 Dec - 05 Dec	Wizz Air
01 Dec - 08 Dec	Wizz Air
08 Dec - 13 Dec	Wizz Air
30 Dec - 04 Jan	Scandinavian Airlines
30 Dec - 08 Jan	SWISS
22 Dec - 09 Jan	Wizz Air
31 Dec - 07 Jan	Ryanair
29 Dec - 04 Jan	Scandinavian Airlines
29 Dec - 07 Jan	Wizz Air
30 Dec - 06 Jan	Lufthansa
29 Dec - 01 Jan	Scandinavian Airlines
31 Dec - 03 Jan	Ryanair
28 Dec - 04 Jan	Scandinavian Airlines

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.

Book a cheap hotel in Keflavik

Cheap car rent in Keflavik

Cheapest return flights from Rome to Keflavik in December from 215€

Return flights