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

Return flights

07 Dec - 12 Dec	Wizz Air
02 Dec - 04 Dec	Ryanair
11 Dec - 28 Dec	Ryanair
04 Dec - 06 Dec	Ryanair
10 Dec - 28 Dec	Ryanair
09 Dec - 14 Dec	Wizz Air
09 Dec - 17 Dec	Ryanair
12 Dec - 28 Dec	Ryanair
09 Dec - 12 Dec	Ryanair
01 Dec - 07 Dec	Ryanair
22 Dec - 11 Jan	Ryanair
31 Dec - 08 Jan	Ryanair
21 Dec - 11 Jan	Ryanair
21 Dec - 12 Jan	Ryanair
22 Dec - 01 Jan	Ryanair
21 Dec - 10 Jan	Ryanair
21 Dec - 08 Jan	Ryanair
24 Dec - 01 Jan	Ryanair
20 Dec - 11 Jan	Ryanair
20 Dec - 08 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 $227

Return flights