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

Return flights

05 Dec - 10 Dec	Air France
17 Dec - 22 Dec	Air France	direct
09 Dec - 13 Dec	Air France
14 Dec - 16 Dec	Vueling Airlines
05 Dec - 07 Dec	Air France
02 Dec - 08 Dec	LOT
03 Dec - 17 Dec	LOT
12 Dec - 16 Dec	LOT
17 Dec - 07 Jan	LOT
16 Dec - 06 Jan	LOT
10 Dec - 15 Dec	LOT
08 Dec - 12 Dec	Lufthansa
31 Dec - 05 Jan	Air Serbia
31 Dec - 06 Jan	LOT
29 Dec - 05 Jan	Air Serbia
26 Dec - 05 Jan	Air Serbia
30 Dec - 05 Jan	Air Serbia
29 Dec - 01 Jan	Air Serbia
26 Dec - 04 Jan	Air Serbia
17 Dec - 05 Jan	Air Serbia

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

Return flights