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

Return flights

31 Dec - 05 Jan	Air Serbia
30 Dec - 06 Jan	LOT
31 Dec - 08 Jan	Air Serbia
31 Dec - 08 Jan	Air Serbia	direct
31 Dec - 10 Jan	Air Serbia
25 Dec - 28 Dec	ITA Airways
25 Dec - 31 Dec	LOT
25 Dec - 27 Dec	Austrian Airlines
31 Dec - 02 Jan	Air Serbia	direct
30 Dec - 10 Jan	Air Serbia
26 Dec - 09 Jan	Austrian Airlines
31 Dec - 10 Jan	Air Serbia	direct
29 Dec - 31 Dec	LOT
26 Dec - 31 Dec	Pegasus Airlines
29 Dec - 05 Jan	Austrian Airlines
27 Dec - 29 Dec	LOT
27 Dec - 30 Dec	LOT
27 Dec - 29 Dec	Air Serbia	direct
27 Dec - 30 Dec	Air Serbia	direct
26 Dec - 28 Dec	Austrian Airlines

Also check the deals for one-way flights from Duesseldorf 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 Duesseldorf to Belgrade in December from 251€

Return flights