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

Return flights

28 Aug - 04 Sep	Ryanair
27 Aug - 01 Sep	Ryanair
20 Aug - 21 Aug	Ryanair
18 Aug - 21 Aug	Ryanair
06 Aug - 11 Aug	Air Serbia
07 Aug - 11 Aug	Air Serbia
08 Aug - 11 Aug	Air Serbia
21 Aug - 22 Aug	Ryanair
21 Aug - 24 Aug	Ryanair
16 Aug - 18 Aug	Ryanair
09 Aug - 14 Aug	Air Serbia	direct
06 Aug - 08 Aug	Air Serbia	direct
30 Aug - 01 Sep	Air Serbia	direct
29 Aug - 05 Sep	Air Serbia	direct
28 Aug - 04 Sep	Air Serbia	direct

Also check the deals for one-way flights from Zagreb 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 Zagreb to Belgrade in August from 127€

Return flights