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

Return flights

17 Oct - 20 Oct	Air Serbia
10 Oct - 13 Oct	Air Serbia
24 Oct - 26 Oct	Air Serbia
24 Oct - 27 Oct	Air Serbia
14 Oct - 19 Oct	Air Serbia
13 Oct - 20 Oct	Air Serbia
27 Oct - 31 Oct	Wizz Air Malta
15 Oct - 22 Oct	Air Serbia
18 Oct - 27 Oct	Air Serbia
01 Oct - 06 Oct	Air Serbia
31 Oct - 02 Nov	Air Serbia
31 Oct - 03 Nov	Air Serbia
30 Oct - 02 Nov	Air Serbia
30 Oct - 03 Nov	Air Serbia
08 Oct - 11 Nov	Lufthansa	direct
30 Oct - 02 Nov	Lufthansa	direct
30 Oct - 03 Nov	Lufthansa	direct
31 Oct - 02 Nov	Lufthansa	direct
31 Oct - 03 Nov	Lufthansa	direct

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

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 October from 198€

Return flights