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

Return flights

24 Sep - 29 Sep	Ryanair
23 Sep - 24 Sep	Ryanair
29 Sep - 06 Oct	easyJet
25 Sep - 02 Oct	Wizz Air Malta
28 Sep - 05 Oct	easyJet
30 Sep - 10 Oct	Ryanair
24 Sep - 26 Sep	Ryanair
25 Sep - 30 Sep	Wizz Air Malta
22 Sep - 27 Sep	Ryanair
26 Sep - 29 Sep	Ryanair
24 Sep - 28 Sep	Ryanair
26 Sep - 01 Oct	Wizz Air Malta
26 Sep - 03 Oct	Ryanair
23 Sep - 26 Sep	easyJet
26 Sep - 28 Sep	Ryanair
26 Sep - 27 Sep	ITA Airways
26 Sep - 03 Oct	Air Serbia	direct
26 Sep - 01 Oct	Air Serbia	direct

Also check the deals for one-way flights from Brussels to Belgrade 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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Cheapest return flights from Brussels to Belgrade in September from 144€

Return flights