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

Return flights

05 Dec - 12 Dec	Vueling Airlines
11 Dec - 14 Dec	Ryanair
12 Dec - 14 Dec	Ryanair
07 Dec - 14 Dec	easyJet
05 Dec - 07 Dec	SWISS
06 Dec - 12 Dec	SWISS
06 Dec - 14 Dec	SWISS
06 Dec - 07 Dec	SWISS
22 Dec - 29 Dec	Austrian Airlines
22 Dec - 01 Jan	Austrian Airlines
17 Dec - 24 Dec	Lufthansa
18 Dec - 04 Jan	Ryanair
29 Dec - 04 Jan	Austrian Airlines
24 Dec - 04 Jan	Austrian Airlines
29 Dec - 05 Jan	Austrian Airlines
28 Dec - 02 Jan	Lufthansa
29 Dec - 03 Jan	LOT
22 Dec - 01 Jan	Air Serbia	direct
20 Dec - 01 Jan	Lufthansa
29 Dec - 05 Jan	Air Serbia	direct

Also check the deals for one-way flights from Copenhagen 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 Copenhagen to Belgrade in December from $142

Return flights