AirHint found the following cheapest return flights from Sydney (SYD) to Istanbul (SAW) in October 2025 (see full year).

Return flights

21 Oct - 20 Nov	Scoot
28 Oct - 04 Nov	Scoot
15 Oct - 28 Oct	AirAsia X
14 Oct - 21 Oct	Scoot
11 Oct - 03 Nov	AirAsia X
23 Oct - 05 Nov	AirAsia X
15 Oct - 27 Oct	AirAsia X
11 Oct - 18 Oct	AirAsia X
03 Oct - 25 Oct	AirAsia X
16 Oct - 27 Oct	AirAsia X
08 Oct - 25 Oct	AirAsia X
09 Oct - 21 Oct	Scoot
10 Oct - 17 Oct	AirAsia X
15 Oct - 26 Oct	Scoot
15 Oct - 20 Nov	Qatar Airways
21 Oct - 17 Nov	Qatar Airways
29 Oct - 26 Nov	Qatar Airways
28 Oct - 25 Nov	Qatar Airways
23 Oct - 09 Nov	Qatar Airways
31 Oct - 20 Nov	Qatar Airways

Also check the deals for one-way flights from Sydney 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 Sydney to Istanbul in October from 613€

Return flights