AirHint found the following cheapest return flights from Cardiff (CWL) to Los Angeles (LAX) in December 2025 (see full year).
Return flights
| 16 Dec - 22 Dec | KLM | ||
| 19 Dec - 24 Dec | Air France | ||
| 26 Dec - 02 Jan | Virgin Atlantic |
Also check the deals for one-way flights from Cardiff to Los Angeles in December.
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