Are there nonstop flights from Sydney (SYD) to Ganzhou (KOW)?

No. The fastest connection is via Haikou, about 10h 37m of total flying time.

What is the fastest connection from Sydney (SYD) to Ganzhou (KOW)?

via Haikou ≈ 10h 37m, via Hangzhou ≈ 11h 5m, via Shanghai ≈ 11h 19m (estimated flying time, excluding layovers).

from 25,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Sydney Kingsford Smith International Airport (SYD) to Ganzhou Huangjin Airport (KOW)・7,679 km

No nonstop flights. The fastest connection is via Haikou (HAK), about 10h 37m of flying time (layover not included).

With milesANA 25,000 miles+ (via PEK)JAL 37,000 miles+ (via PVG)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

13 one-stop options, sorted by estimated flying time. Tap one to see the airlines on each leg and booking links.

Times are estimated from distance. Check schedules, frequency and availability with the airline or a booking site.