AirHint found the following cheapest return flights from San Francisco (SFO) to Charleroi (CRL) in December 2025 (see full year).
Return flights
| 05 Dec - 12 Dec | Air France | ||
| 30 Dec - 12 Jan | Lufthansa | ||
| 15 Dec - 22 Dec | Brussels Airlines | ||
| 20 Dec - 06 Jan | Frontier Airlines | ||
| 30 Dec - 04 Jan | Lufthansa |
Also check the deals for one-way flights from San Francisco to Charleroi in December.
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