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

Return flights

09 Dec - 17 Dec	Air Serbia
14 Dec - 16 Dec	Vueling Airlines
07 Dec - 16 Dec	Vueling Airlines
14 Dec - 18 Dec	Lufthansa
11 Dec - 16 Dec	Lufthansa
04 Dec - 08 Dec	Lufthansa
06 Dec - 13 Dec	Lufthansa
07 Dec - 11 Dec	Lufthansa
04 Dec - 07 Dec	Lufthansa
05 Dec - 07 Dec	SWISS
18 Dec - 04 Jan	Lufthansa
30 Dec - 06 Jan	Lufthansa
30 Dec - 02 Jan	LOT
23 Dec - 06 Jan	Vueling Airlines
18 Dec - 06 Jan	Vueling Airlines
30 Dec - 01 Jan	LOT
23 Dec - 04 Jan	Vueling Airlines
30 Dec - 04 Jan	Vueling Airlines

Also check the deals for one-way flights from Duesseldorf to Ljubljana 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 Ljubljana in December from $162

Return flights