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

Return flights

30 Aug - 08 Sep	Lufthansa
06 Aug - 11 Aug	SWISS
06 Aug - 10 Aug	SWISS
01 Aug - 07 Aug	Air Serbia
07 Aug - 10 Aug	Lufthansa
04 Aug - 06 Aug	Air Serbia
07 Aug - 11 Aug	Air Serbia
14 Aug - 17 Aug	LOT
29 Aug - 31 Aug	Turkish Airlines
25 Aug - 01 Sep	Turkish Airlines

Also check the deals for one-way flights from Ljubljana to Bucharest 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 Ljubljana to Bucharest in August from 173€

Return flights