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

Return flights

15 Dec - 17 Dec	Vueling Airlines
12 Dec - 15 Dec	Ryanair
04 Dec - 07 Dec	Ryanair
03 Dec - 07 Dec	easyJet
01 Dec - 03 Dec	Ryanair
19 Dec - 21 Dec	Ryanair
05 Dec - 08 Dec	Vueling Airlines
15 Dec - 15 Dec	easyJet
01 Dec - 05 Dec	Ryanair
10 Dec - 12 Dec	easyJet
18 Dec - 11 Jan	Ryanair
31 Dec - 16 Jan	easyJet
29 Dec - 05 Jan	Ryanair
17 Dec - 19 Jan	easyJet
29 Dec - 16 Jan	Air Serbia
29 Dec - 16 Jan	Air Serbia	direct
31 Dec - 16 Jan	Air Serbia	direct
19 Dec - 09 Jan	Ryanair
27 Dec - 03 Jan	Ryanair
26 Dec - 02 Jan	Ryanair

Also check the deals for one-way flights from Brussels 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 Brussels to Belgrade in December from 115€

Return flights