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

Return flights

11 Sep - 14 Sep	Air Serbia	direct
19 Sep - 22 Sep	Air Serbia	direct
19 Sep - 21 Sep	Air Serbia	direct
26 Sep - 29 Sep	Air Serbia	direct
27 Sep - 29 Sep	Ryanair
20 Sep - 21 Sep	Ryanair
26 Sep - 28 Sep	Air Serbia	direct
12 Sep - 16 Sep	Vueling Airlines
08 Sep - 21 Sep	Vueling Airlines
08 Sep - 22 Sep	Vueling Airlines

Also check the deals for one-way flights from Split 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 Split to Belgrade in September from $196

Return flights