AirHint found the following cheapest return flights from Keflavik (KEF) to Charleroi (CRL) in December 2025 (see full year).
Return flights
| 04 Dec - 11 Dec | Wizz Air | ||
| 07 Dec - 14 Dec | Wizz Air | ||
| 14 Dec - 30 Dec | Wizz Air |
Also check the deals for one-way flights from Keflavik to Charleroi in December.
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