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

Return flights

26 Dec - 28 Dec	Air Serbia
24 Dec - 27 Dec	Air Serbia
27 Dec - 28 Dec	Air Serbia
26 Dec - 27 Dec	Air Serbia
24 Dec - 28 Dec	Air Serbia
25 Dec - 27 Dec	Air Serbia
24 Dec - 26 Dec	Air Serbia
27 Dec - 30 Dec	LOT
28 Dec - 04 Jan	Air Serbia
30 Dec - 02 Jan	Ryanair
27 Dec - 27 Dec	SWISS

Also check the deals for one-way flights from Budapest 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.

Book a cheap hotel in Ljubljana

Cheap car rent in Ljubljana

Cheapest return flights from Budapest to Ljubljana in December from $327

Return flights