AirHint found the following cheapest one-way flights from Stuttgart (STR) to Sofia (SOF) in December 2025 (see full year).
One-Way flights
| 30 Dec | Wizz Air | direct | |
| 27 Dec | Wizz Air | direct | |
| 29 Dec | Air Serbia | ||
| 25 Dec | Wizz Air | direct | |
| 28 Dec | Pegasus Airlines | ||
| 26 Dec | Eurowings | ||
| 23 Dec | Wizz Air | direct | |
| 22 Dec | Wizz Air | ||
| 24 Dec | Eurowings |
Also check the deals for return flights from Stuttgart to Sofia in December.
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