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

Return flights

31 Jul - 12 Aug	VietJet Air
30 Jul - 12 Aug	VietJet Air
28 Jul - 01 Aug	HK Express
28 Jul - 12 Aug	VietJet Air
30 Jul - 17 Aug	VietJet Air
28 Jul - 15 Aug	VietJet Air
31 Jul - 15 Aug	VietJet Air
30 Jul - 15 Aug	VietJet Air
31 Jul - 07 Aug	VietJet Air
31 Jul - 14 Aug	AirAsia
29 Jul - 31 Jul	VietJet Air
27 Jul - 31 Jul	Philippine Airlines
27 Jul - 30 Jul	Philippine Airlines
29 Jul - 31 Jul	Qantas	direct
28 Jul - 30 Jul	AirAsia
27 Jul - 30 Jul	Cathay Pacific	direct
27 Jul - 31 Jul	Cathay Pacific	direct

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

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 July from 625€

Return flights