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

Return flights

08 Dec - 12 Dec	Air Serbia
28 Dec - 02 Jan	Air Serbia
12 Dec - 15 Dec	Lufthansa
18 Dec - 23 Dec	Lufthansa
12 Dec - 14 Dec	Lufthansa
11 Dec - 14 Dec	Lufthansa
08 Dec - 18 Dec	SWISS
31 Dec - 06 Jan	Lufthansa
04 Dec - 08 Dec	SWISS
04 Dec - 07 Dec	SWISS
27 Dec - 02 Jan	SWISS
28 Dec - 04 Jan	SWISS
15 Dec - 28 Dec	Air Serbia
09 Dec - 16 Dec	Vueling Airlines
29 Dec - 04 Jan	SWISS

Also check the deals for one-way flights from Ljubljana to Prague 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 Prague

Cheap car rent in Prague

Cheapest return flights from Ljubljana to Prague in December from $162

Return flights