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

AirHint found the following cheapest return flights from Hong Kong (HKG) to Sydney (SYD) in September 2026 (see full year).

Return flights

10 Sep - 16 Sep AirAsia
21 Sep - 18 Oct AirAsia
07 Sep - 14 Sep AirAsia
13 Sep - 01 Oct AirAsia
21 Sep - 17 Oct AirAsia
22 Sep - 16 Oct AirAsia
03 Sep - 09 Sep Scoot
21 Sep - 27 Sep Scoot
11 Sep - 29 Sep AirAsia
18 Sep - 04 Oct Scoot
17 Sep - 04 Oct Scoot
14 Sep - 26 Sep Scoot
05 Sep - 13 Sep AirAsia
24 Sep - 09 Oct Vietnam Airlines
22 Sep - 06 Oct Vietnam Airlines
27 Sep - 09 Oct AirAsia
25 Sep - 05 Oct Cebu Pacific
01 Sep - 09 Sep AirAsia
07 Sep - 14 Sep Qantas direct
05 Sep - 13 Sep Qantas direct

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

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