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

Return flights

11 Dec - 15 Dec	Lufthansa
08 Dec - 12 Dec	SWISS
10 Dec - 13 Dec	SWISS
06 Dec - 14 Dec	SWISS
12 Dec - 14 Dec	Lufthansa
08 Dec - 13 Dec	SWISS
10 Dec - 17 Dec	SWISS
12 Dec - 16 Dec	Lufthansa
25 Dec - 31 Jan	Air Serbia
06 Dec - 07 Dec	SWISS
20 Dec - 22 Dec	Lufthansa
30 Dec - 06 Jan	Lufthansa
26 Dec - 01 Jan	LOT
28 Dec - 04 Jan	LOT
29 Dec - 04 Jan	LOT
27 Dec - 01 Jan	Air Serbia
28 Dec - 02 Jan	LOT
28 Dec - 01 Jan	Air Serbia
29 Dec - 03 Jan	LOT
31 Dec - 04 Jan	Air Serbia

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.

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Cheapest return flights from Ljubljana to Prague in December from 175€

Return flights