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

Return flights

21 Dec - 28 Dec	Ryanair
06 Dec - 19 Dec	Ryanair
21 Dec - 26 Dec	Ryanair
07 Dec - 09 Dec	Ryanair
06 Dec - 20 Dec	Ryanair
08 Dec - 13 Dec	Ryanair
07 Dec - 12 Dec	Ryanair
14 Dec - 21 Dec	Ryanair
22 Dec - 28 Dec	Ryanair
24 Dec - 28 Dec	Ryanair
28 Dec - 09 Jan	Ryanair
18 Dec - 02 Jan	Ryanair
26 Dec - 01 Jan	Ryanair
28 Dec - 04 Jan	Ryanair
28 Dec - 02 Jan	Ryanair
27 Dec - 02 Jan	Ryanair
29 Dec - 03 Jan	Ryanair

Also check the deals for one-way flights from Charleroi 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 Charleroi to Keflavik in December from 180€

Return flights