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

Return flights

05 Dec - 08 Dec	Lufthansa
06 Dec - 08 Dec	Lufthansa
11 Dec - 14 Dec	Lufthansa
11 Dec - 16 Dec	Vueling Airlines
07 Dec - 16 Dec	Vueling Airlines
26 Dec - 30 Dec	Lufthansa
11 Dec - 30 Dec	Vueling Airlines
23 Dec - 28 Dec	Lufthansa
23 Dec - 30 Dec	Vueling Airlines
28 Dec - 01 Jan	LOT
23 Dec - 01 Jan	Vueling Airlines
30 Dec - 01 Jan	Vueling Airlines

Also check the deals for one-way flights from Stuttgart 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 Stuttgart to Ljubljana in December from $222

Return flights