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

Return flights

28 Aug - 31 Aug	Turkish Airlines	direct
25 Aug - 01 Sep	Turkish Airlines	direct
26 Aug - 02 Sep	Turkish Airlines	direct
25 Aug - 02 Sep	Turkish Airlines	direct
23 Aug - 30 Aug	AJet
23 Aug - 27 Aug	Pegasus Airlines
21 Aug - 28 Aug	AJet
26 Aug - 29 Aug	AJet
18 Aug - 24 Aug	Aegean Airlines
24 Aug - 27 Aug	Pegasus Airlines
21 Aug - 28 Aug	Turkish Airlines	direct
18 Aug - 24 Aug	Turkish Airlines	direct
24 Aug - 27 Aug	Turkish Airlines	direct

Also check the deals for one-way flights from Istanbul 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 Istanbul to Ljubljana in August from 244€

Return flights