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
07 Dec - 16 Dec	Vueling Airlines
12 Dec - 14 Dec	Air Serbia
09 Dec - 16 Dec	Vueling Airlines
07 Dec - 16 Dec	SWISS	direct
12 Dec - 14 Dec	SWISS	direct
19 Dec - 21 Dec	Air Serbia
14 Dec - 21 Dec	Vueling Airlines
11 Dec - 14 Dec	SWISS	direct
07 Dec - 14 Dec	Vueling Airlines
27 Dec - 02 Jan	Air Serbia
20 Dec - 05 Jan	Air Serbia
29 Dec - 02 Jan	Air Serbia
20 Dec - 05 Jan	SWISS	direct
23 Dec - 06 Jan	Vueling Airlines
29 Dec - 02 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 153€

Return flights