AirHint found the following cheapest return flights from Frankfurt (FRA) to Ljubljana (LJU) in January 2026 (see full year).

Return flights

16 Jan - 18 Jan	Air Serbia
16 Jan - 19 Jan	Air Serbia
30 Jan - 01 Feb	Air Serbia
09 Jan - 12 Jan	Air Serbia
05 Jan - 09 Jan	Air Serbia
02 Jan - 04 Jan	Air Serbia
08 Jan - 11 Jan	Air France
08 Jan - 12 Jan	Air France
30 Jan - 07 Feb	KLM
29 Jan - 02 Feb	KLM
15 Jan - 19 Jan	Wizz Air
22 Jan - 26 Jan	Wizz Air
22 Jan - 25 Jan	KLM
29 Jan - 01 Feb	Wizz Air
29 Jan - 01 Feb	Lufthansa	direct
29 Jan - 02 Feb	Lufthansa	direct
30 Jan - 01 Feb	Lufthansa	direct
30 Jan - 02 Feb	Lufthansa	direct

Also check the deals for one-way flights from Frankfurt to Ljubljana in January.

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 January from 177€

Return flights