AirHint found the following cheapest return flights from Cardiff (CWL) to Kuala Lumpur (KUL) in December 2025 (see full year).
Return flights
| 28 Dec - 11 Jan | Ryanair | ||
| 27 Dec - 11 Jan | Vueling Airlines | ||
| 20 Dec - 15 Jan | KLM | ||
| 19 Dec - 21 Dec | KLM | ||
| 30 Dec - 02 Jan | Singapore Airlines |
Also check the deals for one-way flights from Cardiff to Kuala Lumpur in December.
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