AirHint found the following cheapest one-way flights from Luxemburg (LUX) to Barcelona (BCN) in December 2025 (see full year).
One-Way flights
| 31 Dec | Ryanair | ||
| 28 Dec | SWISS | ||
| 29 Dec | SWISS | ||
| 30 Dec | SWISS | ||
| 27 Dec | Luxair | ||
| 31 Dec | Luxair | direct | |
| 29 Dec | Ryanair | direct | |
| 28 Dec | Luxair | direct | |
| 27 Dec | Ryanair | direct | |
| 30 Dec | Luxair | direct |
Also check the deals for return flights from Luxemburg to Barcelona in December.
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