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

Return flights

08 Dec - 10 Dec	easyJet
11 Dec - 16 Dec	Wizz Air
09 Dec - 12 Dec	Wizz Air Malta
10 Dec - 15 Dec	easyJet
07 Dec - 12 Dec	Iberia
03 Dec - 07 Dec	SWISS
06 Dec - 14 Dec	Wizz Air
08 Dec - 15 Dec	easyJet
02 Dec - 06 Dec	SWISS
14 Dec - 11 Jan	SWISS
11 Dec - 15 Dec	Wizz Air
29 Dec - 07 Jan	Brussels Airlines
13 Dec - 10 Jan	Wizz Air
25 Dec - 03 Jan	Air Serbia
29 Dec - 01 Jan	Air Serbia
31 Dec - 06 Jan	Wizz Air Malta
14 Dec - 10 Jan	SWISS
31 Dec - 01 Jan	easyJet
31 Dec - 05 Jan	Wizz Air Malta
27 Dec - 01 Jan	Wizz Air

Also check the deals for one-way flights from Madrid 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 Madrid to Ljubljana in December from 156€

Return flights