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

Return flights

12 Dec - 15 Dec	Lufthansa
12 Dec - 13 Dec	Lufthansa
07 Dec - 13 Dec	KLM
08 Dec - 17 Dec	SWISS
06 Dec - 13 Dec	KLM
24 Dec - 11 Jan	SWISS
25 Dec - 11 Jan	Lufthansa
05 Dec - 07 Dec	SWISS
07 Dec - 14 Dec	SWISS
07 Dec - 09 Dec	Wizz Air
26 Dec - 12 Jan	LOT	direct
26 Dec - 11 Jan	LOT	direct
07 Dec - 09 Dec	LOT	direct
09 Dec - 12 Dec	LOT	direct
27 Dec - 03 Jan	LOT	direct
24 Dec - 11 Jan	LOT	direct
30 Dec - 05 Jan	LOT	direct
27 Dec - 04 Jan	LOT	direct
30 Dec - 03 Jan	LOT	direct
30 Dec - 04 Jan	LOT	direct

Also check the deals for one-way flights from Warsaw 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 Warsaw to Ljubljana in December from 171€

Return flights