Are there nonstop flights from Zhanjiang (ZHA) to Changsha (CSX)?

Yes. Urumqi Air fly this route. Flight time is about 1h 26m.

What is the fastest connection from Zhanjiang (ZHA) to Changsha (CSX)?

via Guangzhou ≈ 2h 3m, via Shenzhen ≈ 2h 9m, via Nanchang ≈ 2h 28m (estimated flying time, excluding layovers).

from 10,000 ANA miles, from 12,000 JAL miles (economy, one way, based on the published award charts).

Zhanjiang Wuchuan International Airport (ZHA) to Changsha Huanghua International Airport (CSX)・792 km

Nonstop flights available (1 airline). Flight time about 1h 26m. Nonstop return flights also operate.

With milesANA 10,000 miles+ (via CKG)JAL 12,000 miles+ (via SWA)Economy, one way, estimate. Tap a connection for miles by cabin.

11 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.