AirHint found the following cheapest return flights from Sydney (SYD) to Belgrade (BEG) in December 2025 (see full year).

Return flights

01 Dec - 11 Dec	Jetstar
02 Dec - 16 Dec	Jetstar
02 Dec - 17 Dec	Jetstar
06 Dec - 17 Dec	Hainan Airlines
01 Dec - 15 Dec	Jetstar
01 Dec - 16 Dec	Jetstar
01 Dec - 17 Dec	Jetstar
03 Dec - 12 Jan	Scoot
27 Dec - 28 Jan	Hainan Airlines
25 Dec - 29 Jan	Hainan Airlines
25 Dec - 26 Jan	Hainan Airlines
04 Dec - 21 Jan	Batik Air Malaysia
25 Dec - 28 Jan	Hainan Airlines
28 Dec - 29 Jan	Hainan Airlines
27 Dec - 29 Jan	Hainan Airlines
01 Dec - 31 Dec	Jetstar
09 Dec - 20 Dec	Virgin Australia
04 Dec - 15 Jan	Scoot
01 Dec - 16 Jan	Jetstar
06 Dec - 21 Dec	China Southern

Also check the deals for one-way flights from Sydney to Belgrade in December.

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 Sydney to Belgrade in December from 1018€

Return flights