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

Return flights

24 Dec - 11 Jan	Wizz Air
12 Dec - 15 Dec	Wizz Air
26 Dec - 11 Jan	Wizz Air
26 Dec - 12 Jan	Wizz Air
15 Dec - 17 Dec	Wizz Air
01 Dec - 17 Dec	Ryanair
11 Dec - 14 Dec	Ryanair
19 Dec - 23 Dec	Wizz Air
19 Dec - 21 Dec	Wizz Air
07 Dec - 14 Dec	Ryanair
08 Dec - 11 Dec	Ryanair
05 Dec - 07 Dec	Wizz Air
31 Dec - 04 Jan	Ryanair
12 Dec - 13 Dec	Ryanair
27 Dec - 04 Jan	Ryanair
29 Dec - 04 Jan	Ryanair

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 $257

Return flights