AirHint found the following cheapest return flights from Ljubljana (LJU) to Sofia (SOF) in December 2025 (see full year).
Return flights
| 09 Dec - 16 Dec | Air Serbia | ||
| 07 Dec - 09 Dec | Air Serbia | ||
| 16 Dec - 16 Dec | Turkish Airlines | ||
| 29 Dec - 02 Jan | Air Serbia | ||
| 20 Dec - 04 Jan | Air Serbia | ||
| 27 Dec - 04 Jan | Air Serbia |
Also check the deals for one-way flights from Ljubljana to Sofia in December.
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The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.
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