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

Return flights

30 Aug - 21 Sep	Singapore Airlines
03 Aug - 13 Aug	Virgin Australia
25 Aug - 07 Sep	Singapore Airlines
03 Aug - 05 Sep	Qatar Airways
06 Aug - 05 Sep	Virgin Australia
26 Aug - 12 Sep	Qatar Airways
26 Aug - 13 Sep	Qatar Airways
01 Aug - 05 Sep	Singapore Airlines
02 Aug - 05 Sep	Singapore Airlines
21 Aug - 12 Sep	Turkish Airlines
11 Aug - 17 Sep	Emirates
17 Aug - 27 Aug	Emirates
07 Aug - 21 Aug	Emirates
13 Aug - 22 Aug	Emirates
01 Aug - 31 Aug	Emirates
01 Aug - 08 Aug	Turkish Airlines

Also check the deals for one-way flights from Adelaide to Istanbul 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 Adelaide to Istanbul in August from $1287

Return flights