AirHint found the following cheapest return flights from Prague (PRG) to Ljubljana (LJU) in August 2025 (see full year).

Return flights

23 Aug - 26 Aug	Air Serbia
26 Aug - 01 Sep	Air Serbia
26 Aug - 09 Sep	LOT
28 Aug - 06 Sep	Air Serbia
21 Aug - 24 Aug	Air Serbia
21 Aug - 22 Aug	Air Serbia
26 Aug - 02 Sep	SWISS
28 Aug - 30 Aug	LOT
26 Aug - 30 Aug	LOT
16 Aug - 18 Aug	Air Serbia
23 Aug - 28 Aug	Air Serbia
22 Aug - 24 Aug	Air Serbia
24 Aug - 28 Aug	LOT
24 Aug - 31 Aug	Lufthansa

Also check the deals for one-way flights from Prague to Ljubljana in August.

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 Prague to Ljubljana in August from 178€

Return flights