AirHint found the following cheapest return flights from Melbourne (MEL) to Sofia (SOF) in December 2025 (see full year).
Return flights
| 25 Dec - 31 Dec | Emirates | ||
| 17 Dec - 03 Jan | Qatar Airways | ||
| 19 Dec - 12 Jan | Qantas |
Also check the deals for one-way flights from Melbourne to Sofia in December.
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