A non-stop flight from Hong Kong to Brisbane takes about 9 hours 35 minutes, covering ~4,500 miles (7,250 km).
Cathay Pacific, Qantas, and occasionally Virgin Australia operate direct services. Schedule varies by season—often daily in peak, 4–5x weekly in shoulder.
Brisbane is 2 hours ahead of Hong Kong (AEST vs HKT, no DST in QLD). Arrival is usually morning, allowing same-day connections.
If connecting (e.g., via Singapore, Sydney, Melbourne), total travel time ranges 13–18+ hours.