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

Return flights

15 Oct - 15 Nov	AirAsia
19 Oct - 26 Oct	AirAsia
13 Oct - 18 Oct	AirAsia
30 Oct - 14 Nov	AirAsia
01 Oct - 05 Oct	AirAsia
03 Oct - 05 Oct	AirAsia
21 Oct - 28 Oct	Malaysia Airlines
21 Oct - 30 Oct	Malaysia Airlines
24 Oct - 29 Oct	Turkish Airlines
17 Oct - 18 Nov	Turkish Airlines
20 Oct - 09 Nov	Turkish Airlines
23 Oct - 09 Nov	Jetstar
16 Oct - 06 Nov	Turkish Airlines
14 Oct - 30 Oct	Malaysia Airlines
15 Oct - 27 Oct	Qatar Airways
21 Oct - 30 Nov	Qatar Airways
24 Oct - 01 Nov	Qatar Airways
04 Oct - 19 Oct	Thai Airways

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

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 October from $678

Return flights