AirHint found the following cheapest return flights from Barcelona (BCN) to Luxemburg (LUX) in December 2026 (see full year).
Return flights
| 24 Dec - 30 Dec | Luxair | direct | |
| 06 Dec - 09 Dec | Luxair | direct | |
| 22 Dec - 28 Dec | Wizz Air Malta | ||
| 22 Dec - 28 Dec | Luxair | direct | |
| 02 Dec - 02 Dec | Lufthansa | ||
| 03 Dec - 03 Dec | Lufthansa |
Also check the deals for one-way flights from Barcelona to Luxemburg in December.
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