Cheapest return flights from Belgrade to Sofia in September from 153€

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

Return flights

13 Sep - 18 Sep Air Serbia direct
27 Sep - 28 Sep Air Serbia direct
20 Sep - 21 Sep Wizz Air
19 Sep - 21 Sep Air Serbia direct
20 Sep - 21 Sep Air Serbia direct
12 Sep - 18 Sep Air Serbia direct
12 Sep - 17 Sep Air Serbia
04 Sep - 07 Sep Air Serbia direct
05 Sep - 12 Sep Air Serbia direct
06 Sep - 07 Sep Air Serbia direct

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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