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

Return flights

05 Dec - 09 Jan	KLM	direct
10 Dec - 12 Dec	easyJet
02 Dec - 06 Dec	Air Serbia
24 Dec - 31 Dec	Air Serbia
02 Dec - 10 Dec	Air Serbia
25 Dec - 18 Jan	Air Serbia
18 Dec - 21 Dec	Lufthansa
11 Dec - 15 Dec	Lufthansa
05 Dec - 08 Dec	Lufthansa
05 Dec - 07 Dec	KLM
04 Dec - 07 Dec	Lufthansa
02 Dec - 11 Dec	SWISS
18 Dec - 08 Jan	Lufthansa
24 Dec - 07 Jan	KLM
18 Dec - 06 Jan	Lufthansa
25 Dec - 01 Jan	Air Serbia
18 Dec - 08 Jan	KLM	direct
22 Dec - 05 Jan	Air Serbia
20 Dec - 09 Jan	KLM
16 Dec - 01 Jan	Vueling Airlines

Also check the deals for one-way flights from Amsterdam 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 Amsterdam to Ljubljana in December from 179€

Return flights