AirHint found the following cheapest return flights from Oslo (OSL) to Luxemburg (LUX) in December 2025 (see full year).
Return flights
| 10 Dec - 14 Dec | Lufthansa | ||
| 08 Dec - 14 Dec | Lufthansa | ||
| 26 Dec - 02 Jan | Luxair | direct | |
| 19 Dec - 26 Dec | Luxair |
Also check the deals for one-way flights from Oslo to Luxemburg in December.
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