AirHint found the following cheapest return flights from Cardiff (CWL) to Berlin (BER) in December 2025 (see full year).
Return flights
| 08 Dec - 10 Dec | Ryanair | ||
| 05 Dec - 07 Dec | Ryanair | ||
| 15 Dec - 18 Dec | Ryanair | ||
| 17 Dec - 20 Dec | Ryanair | ||
| 23 Dec - 28 Dec | Vueling Airlines | ||
| 26 Dec - 31 Dec | KLM | ||
| 30 Dec - 01 Jan | Ryanair |
Also check the deals for one-way flights from Cardiff to Berlin in December.
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