Cheapest return MAD–KEF flights, December

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

Return flights

10 Dec - 17 Dec Wizz Air Malta
10 Dec - 13 Dec Wizz Air Malta
19 Dec - 24 Jan Wizz Air
03 Dec - 08 Dec Wizz Air
09 Dec - 17 Dec Wizz Air UK
08 Dec - 15 Dec Wizz Air
04 Dec - 08 Dec Wizz Air
13 Dec - 19 Dec Wizz Air Malta
18 Dec - 26 Jan Wizz Air
22 Dec - 14 Jan Wizz Air
04 Dec - 09 Dec Wizz Air
29 Dec - 05 Jan Wizz Air
04 Dec - 10 Dec Ryanair
24 Dec - 30 Dec Wizz Air
26 Dec - 04 Jan Wizz Air
24 Dec - 03 Jan Wizz Air
28 Dec - 07 Jan Wizz Air Malta
26 Dec - 03 Jan Wizz Air

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

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