AirHint found the following cheapest return flights from Sofia (SOF) to Zagreb (ZAG) in December 2025 (see full year).
Return flights
| 05 Dec - 08 Dec | Wizz Air | ||
| 19 Dec - 22 Dec | Air Serbia | ||
| 26 Dec - 02 Jan | Air Serbia | ||
| 04 Dec - 07 Dec | Wizz Air | ||
| 08 Dec - 10 Dec | Lufthansa |
Also check the deals for one-way flights from Sofia to Zagreb in December.
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