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

Return flights

30 Sep - 11 Oct	Air Serbia
28 Sep - 30 Sep	Air Serbia
30 Sep - 11 Oct	Air Serbia	direct
17 Sep - 20 Sep	Ryanair
17 Sep - 22 Sep	Wizz Air Malta
15 Sep - 22 Sep	Air Serbia	direct
17 Sep - 22 Sep	Air Serbia	direct
14 Sep - 18 Sep	Air Serbia	direct
17 Sep - 20 Sep	Air Serbia	direct
16 Sep - 17 Sep	Air Serbia	direct
17 Sep - 24 Sep	Ryanair
24 Sep - 25 Sep	Wizz Air Malta

Also check the deals for one-way flights from Budapest 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 Budapest to Belgrade in September from 125€

Return flights