AirHint found the following cheapest return flights from Katowice (KTW) to Ljubljana (LJU) in December 2025 (see full year).
Return flights
| 28 Dec - 02 Jan | Lufthansa | ||
| 29 Dec - 04 Jan | Lufthansa | ||
| 26 Dec - 02 Jan | LOT | ||
| 29 Dec - 02 Jan | LOT | ||
| 30 Dec - 02 Jan | Lufthansa | ||
| 27 Dec - 02 Jan | LOT |
Also check the deals for one-way flights from Katowice to Ljubljana in December.
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