Cheapest return flights from Hong Kong to Sydney in September from $401

Best time to book flights for Hong Kong (HKG) to Sydney (SYD) flights at AirHint

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

Return flights

01 Sep - 06 Sep Scoot Tigerair
05 Sep - 17 Sep Scoot Tigerair
04 Sep - 10 Sep Scoot Tigerair
08 Sep - 15 Sep Scoot Tigerair
10 Sep - 17 Sep Scoot Tigerair
01 Sep - 14 Sep Scoot Tigerair
08 Sep - 17 Sep Scoot Tigerair
07 Sep - 14 Sep Scoot Tigerair
01 Sep - 28 Oct Scoot Tigerair
11 Sep - 17 Sep Scoot Tigerair
04 Sep - 13 Sep Scoot Tigerair
19 Sep - 12 Oct Scoot Tigerair
24 Sep - 01 Oct Hong Kong Airlines direct
25 Sep - 16 Oct Cebu Pacific
25 Sep - 02 Oct Scoot Tigerair
26 Sep - 03 Oct HK Express
29 Sep - 06 Oct HK Express
25 Sep - 14 Oct AirAsia
25 Sep - 15 Oct AirAsia
25 Sep - 12 Oct Scoot Tigerair

Also check the deals for one-way flights from Hong Kong to Sydney in September.

Skyscanner

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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