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

Return flights

14 Dec - 16 Dec	Vueling Airlines
05 Dec - 07 Dec	Air Serbia
12 Dec - 14 Dec	Air Serbia
05 Dec - 08 Dec	Air Serbia
12 Dec - 19 Dec	Air Serbia
14 Dec - 25 Dec	Vueling Airlines
01 Dec - 04 Dec	Air Serbia
01 Dec - 02 Dec	Air Serbia
09 Dec - 16 Dec	Vueling Airlines
09 Dec - 12 Dec	KLM
29 Dec - 06 Jan	KLM
30 Dec - 02 Jan	LOT
18 Dec - 06 Jan	Vueling Airlines
29 Dec - 06 Jan	SWISS	direct
29 Dec - 02 Jan	SWISS
30 Dec - 03 Jan	LOT
30 Dec - 06 Jan	Vueling Airlines
29 Dec - 03 Jan	SWISS
20 Dec - 03 Jan	SWISS	direct
30 Dec - 03 Jan	SWISS	direct

Also check the deals for one-way flights from Zurich 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 Zurich to Ljubljana in December from $178

Return flights