AirHint found the following cheapest one-way flights from Cardiff (CWL) to Athens (ATH) in December 2025 (see full year).
One-Way flights
| 16 Dec | Vueling Airlines | ||
| 30 Dec | Ryanair | ||
| 18 Dec | Ryanair | ||
| 28 Dec | Ryanair |
Also check the deals for return flights from Cardiff to Athens in December.
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