Cheapest return flights from Hong Kong to Sydney in September from $404

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

05 Sep - 14 Sep Scoot Tigerair
01 Sep - 15 Sep Scoot Tigerair
17 Sep - 30 Sep Scoot Tigerair
06 Sep - 08 Sep Scoot Tigerair
08 Sep - 14 Sep Scoot Tigerair
03 Sep - 13 Sep Scoot Tigerair
19 Sep - 12 Oct Scoot Tigerair
09 Sep - 14 Oct Scoot Tigerair
22 Sep - 12 Oct Scoot Tigerair
19 Sep - 28 Sep Scoot Tigerair
04 Sep - 10 Sep Scoot Tigerair
13 Sep - 28 Sep Scoot Tigerair
20 Sep - 28 Sep Scoot Tigerair
18 Sep - 02 Oct Scoot Tigerair
25 Sep - 15 Oct HK Express
23 Sep - 04 Oct Scoot Tigerair
25 Sep - 03 Oct HK Express
19 Sep - 09 Oct Scoot Tigerair
25 Sep - 04 Oct HK Express
27 Sep - 04 Oct HK Express

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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