AirHint found the following cheapest return flights from Glasgow (GLA) to Ljubljana (LJU) in December 2025 (see full year).
Return flights
| 11 Dec - 18 Dec | Lufthansa | ||
| 12 Dec - 14 Dec | Jet2 | ||
| 23 Dec - 05 Jan | Lufthansa | ||
| 12 Dec - 13 Dec | Jet2 | ||
| 19 Dec - 24 Dec | Lufthansa | ||
| 21 Dec - 05 Jan | Lufthansa | ||
| 22 Dec - 05 Jan | Lufthansa |
Also check the deals for one-way flights from Glasgow to Ljubljana in December.
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