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

Return flights

20 Aug - 27 Aug	Austrian Airlines
21 Aug - 28 Aug	Austrian Airlines
28 Aug - 22 Sep	Croatia Airlines
27 Aug - 01 Sep	Austrian Airlines
28 Aug - 22 Sep	Air Serbia	direct
08 Aug - 11 Aug	Austrian Airlines
01 Aug - 04 Aug	Volotea
05 Aug - 08 Aug	Vueling Airlines
08 Aug - 10 Aug	Austrian Airlines
03 Aug - 10 Aug	Croatia Airlines
14 Aug - 18 Aug	Croatia Airlines
18 Aug - 21 Aug	Air Serbia
14 Aug - 17 Aug	Croatia Airlines

Also check the deals for one-way flights from Split to Belgrade in August.

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 August from $234

Return flights