Cheapest return flights from Belgrade to Sofia in September from $147

AirHint found the following cheapest return flights from Belgrade (BEG) to Sofia (SOF) in September 2025 (see full year).

Return flights

19 Sep - 22 Sep Wizz Air
24 Sep - 28 Sep Wizz Air
23 Sep - 25 Sep Air Serbia
21 Sep - 25 Sep Air Serbia
22 Sep - 24 Sep Air Serbia
15 Sep - 20 Sep Wizz Air
25 Sep - 28 Sep Wizz Air UK
25 Sep - 29 Sep Wizz Air UK
20 Sep - 22 Sep Air Serbia
18 Sep - 22 Sep Air Serbia

Also check the deals for one-way flights from Belgrade to Sofia in September.

Skyscanner

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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