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

Return flights

23 Oct - 28 Oct	Scoot
20 Oct - 03 Nov	AirAsia
27 Oct - 30 Oct	AirAsia
20 Oct - 27 Oct	AirAsia
28 Oct - 05 Nov	Scoot
20 Oct - 28 Oct	Scoot
22 Oct - 29 Oct	Scoot
23 Oct - 26 Oct	Scoot
23 Oct - 29 Oct	Scoot
27 Oct - 04 Nov	Scoot
21 Oct - 04 Nov	Scoot
23 Oct - 03 Nov	Scoot
30 Oct - 03 Nov	Scoot
20 Oct - 25 Oct	AirAsia
21 Oct - 29 Oct	AirAsia
15 Oct - 22 Oct	AirAsia
15 Oct - 03 Nov	AirAsia
31 Oct - 04 Nov	AirAsia
21 Oct - 05 Nov	AirAsia
31 Oct - 05 Nov	AirAsia

Also check the deals for one-way flights from Hong Kong to Sydney 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 Hong Kong to Sydney in October from 323€

Return flights