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

Return flights

23 Dec - 06 Jan	Lufthansa	direct
30 Dec - 05 Jan	Lufthansa	direct
27 Dec - 02 Jan	Lufthansa	direct
23 Dec - 30 Dec	Lufthansa	direct
29 Dec - 04 Jan	Lufthansa	direct
23 Dec - 29 Dec	Lufthansa	direct
24 Dec - 28 Dec	Air France
22 Dec - 20 Jan	LOT
23 Dec - 26 Dec	KLM
26 Dec - 02 Jan	Lufthansa	direct
20 Dec - 02 Jan	Lufthansa	direct
23 Dec - 28 Dec	Lufthansa
20 Dec - 23 Dec	Lufthansa
20 Dec - 21 Dec	Lufthansa
22 Dec - 24 Dec	LOT
22 Dec - 26 Dec	LOT
20 Dec - 24 Dec	Lufthansa	direct
31 Dec - 04 Jan	Lufthansa	direct
22 Dec - 20 Jan	Lufthansa	direct
30 Dec - 04 Jan	Lufthansa	direct

Also check the deals for one-way flights from Frankfurt 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 Frankfurt to Ljubljana in December from 233€

Return flights