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

Return flights

14 Dec - 19 Dec	Ryanair
16 Dec - 19 Dec	Ryanair
21 Dec - 26 Dec	Ryanair
02 Dec - 07 Dec	Ryanair
07 Dec - 09 Dec	Ryanair
11 Dec - 14 Dec	Ryanair
20 Dec - 26 Dec	Ryanair
19 Dec - 26 Dec	Ryanair
01 Dec - 25 Dec	Ryanair
30 Dec - 09 Jan	Ryanair
28 Dec - 01 Jan	Wizz Air
27 Dec - 03 Jan	Ryanair
30 Dec - 03 Jan	Ryanair
29 Dec - 04 Jan	Ryanair
28 Dec - 02 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 209€

Return flights