AirHint found the following cheapest return flights from Ljubljana (LJU) to Luxemburg (LUX) in December 2025 (see full year).
Return flights
| 25 Dec - 28 Dec | Luxair | direct | |
| 23 Dec - 28 Dec | Vueling Airlines | ||
| 05 Dec - 08 Dec | Lufthansa | ||
| 08 Dec - 11 Dec | SWISS | ||
| 02 Dec - 03 Dec | KLM | ||
| 01 Dec - 02 Dec | Air Serbia | ||
| 02 Dec - 02 Dec | SWISS |
Also check the deals for one-way flights from Ljubljana to Luxemburg in December.
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