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

Return flights

13 Dec - 20 Dec	SWISS	direct
06 Dec - 09 Dec	Air Serbia
06 Dec - 13 Dec	Air Serbia
03 Dec - 17 Dec	Air Serbia
16 Dec - 18 Dec	Vueling Airlines
10 Dec - 12 Dec	Air Serbia
06 Dec - 13 Dec	SWISS	direct
13 Dec - 16 Dec	SWISS	direct
14 Dec - 16 Dec	Vueling Airlines
12 Dec - 14 Dec	Air Serbia
27 Dec - 02 Jan	Air Serbia
16 Dec - 01 Jan	Vueling Airlines
27 Dec - 01 Jan	Air Serbia
14 Dec - 01 Jan	Vueling Airlines
24 Dec - 03 Jan	SWISS	direct
25 Dec - 11 Jan	Vueling Airlines
30 Dec - 15 Jan	Vueling Airlines
30 Dec - 02 Jan	LOT
23 Dec - 11 Jan	Vueling Airlines
19 Dec - 02 Jan	Chair Airlines

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 $222

Return flights