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

Return flights

07 Dec - 12 Dec	Wizz Air
07 Dec - 14 Dec	Wizz Air
07 Dec - 10 Dec	Wizz Air
10 Dec - 15 Dec	Wizz Air
14 Dec - 17 Dec	Wizz Air
26 Dec - 29 Dec	Brussels Airlines	direct
26 Dec - 05 Jan	Brussels Airlines	direct
23 Dec - 03 Jan	LOT
09 Dec - 12 Dec	LOT
10 Dec - 17 Dec	LOT
02 Dec - 05 Dec	LOT
03 Dec - 10 Dec	LOT
12 Dec - 04 Jan	Wizz Air
22 Dec - 02 Jan	LOT
12 Dec - 04 Jan	Brussels Airlines	direct
22 Dec - 04 Jan	Brussels Airlines	direct
28 Dec - 02 Jan	LOT
29 Dec - 02 Jan	LOT
30 Dec - 02 Jan	LOT
30 Dec - 03 Jan	LOT

Also check the deals for one-way flights from Ljubljana to Brussels 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 Ljubljana to Brussels in December from $183

Return flights