AirHint found the following cheapest return flights from Perth (PER) to Istanbul (IST) in September 2025 (see full year).

Return flights

09 Sep - 20 Sep	Jetstar
11 Sep - 25 Sep	Jetstar
02 Sep - 07 Sep	Jetstar
02 Sep - 16 Sep	Jetstar
01 Sep - 11 Sep	AirAsia
08 Sep - 15 Sep	AirAsia
09 Sep - 18 Sep	IndiGo
04 Sep - 11 Sep	Jetstar
15 Sep - 22 Sep	IndiGo
08 Sep - 21 Sep	AirAsia
15 Sep - 01 Oct	Scoot Tigerair
26 Sep - 17 Oct	AirAsia
14 Sep - 17 Oct	IndiGo
03 Sep - 15 Oct	IndiGo
05 Sep - 04 Oct	IndiGo
08 Sep - 23 Oct	Qatar Airways
27 Sep - 12 Oct	IndiGo
26 Sep - 03 Oct	Emirates

Also check the deals for one-way flights from Perth to Istanbul in September.

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 Perth to Istanbul in September from 598€

Return flights