AirHint found the following cheapest return flights from Belgrade (BEG) to Sofia (SOF) in September 2025 (see full year).
Return flights
| 05 Sep - 08 Sep | Wizz Air | ||
| 25 Sep - 06 Oct | Air Serbia | ||
| 25 Sep - 06 Oct | Air Serbia | direct | |
| 06 Sep - 07 Sep | Wizz Air | ||
| 05 Sep - 08 Sep | Air Serbia | direct | |
| 02 Sep - 07 Sep | Air Serbia | direct |
Also check the deals for one-way flights from Belgrade to Sofia in September.
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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