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

Return flights

14 Mar - 04 Apr	Ryanair
09 Mar - 12 Mar	Wizz Air Malta
21 Mar - 30 Mar	Air Serbia
26 Mar - 30 Mar	Air Serbia
25 Mar - 31 Mar	Lufthansa	direct
25 Mar - 01 Apr	Lufthansa	direct
26 Mar - 29 Mar	Air Serbia
04 Mar - 18 Mar	Air Serbia
20 Mar - 23 Mar	Air Serbia
10 Mar - 15 Mar	Air Serbia
23 Mar - 29 Mar	Air Serbia
23 Mar - 25 Mar	Air Serbia
28 Mar - 02 Apr	Ryanair
30 Mar - 09 Apr	Air Serbia
29 Mar - 04 Apr	Lufthansa
14 Mar - 04 Apr	Lufthansa	direct
29 Mar - 04 Apr	Lufthansa	direct

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

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 March from 133€

Return flights