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

Return flights

02 Dec - 05 Dec	KLM	direct
07 Dec - 11 Dec	KLM	direct
05 Dec - 06 Jan	KLM	direct
05 Dec - 08 Dec	easyJet
12 Dec - 26 Dec	KLM	direct
16 Dec - 22 Dec	KLM	direct
24 Dec - 07 Jan	KLM	direct
22 Dec - 29 Dec	Air Serbia
12 Dec - 15 Dec	Air Serbia
22 Dec - 28 Dec	Air Serbia
06 Dec - 07 Dec	Air Serbia
28 Dec - 04 Jan	Air Serbia
12 Dec - 04 Jan	Air Serbia
19 Dec - 08 Jan	Air Serbia
19 Dec - 11 Jan	Air Serbia
18 Dec - 09 Jan	Lufthansa
26 Dec - 29 Dec	Air Serbia
29 Dec - 02 Jan	Air Serbia
18 Dec - 09 Jan	KLM	direct
19 Dec - 08 Jan	KLM	direct

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 182€

Return flights