AirHint found the following cheapest return flights from Prague (PRG) to Ljubljana (LJU) in December 2025 (see full year).
Return flights
| 23 Dec - 30 Dec | Air Serbia | ||
| 24 Dec - 28 Dec | Air Serbia | ||
| 12 Dec - 14 Dec | Air Serbia | ||
| 13 Dec - 15 Dec | SWISS | ||
| 12 Dec - 13 Dec | Air Serbia | ||
| 10 Dec - 11 Dec | Air Serbia | ||
| 08 Dec - 08 Dec | Lufthansa |
Also check the deals for one-way flights from Prague to Ljubljana in December.
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