Are there nonstop flights from Astana (NQZ) to Wuxi (WUX)?

No. The fastest connection is via Ürümqi, about 6h 26m of total flying time.

What is the fastest connection from Astana (NQZ) to Wuxi (WUX)?

via Ürümqi ≈ 6h 26m, via Xi'an ≈ 6h 27m, via Beijing ≈ 6h 30m (estimated flying time, excluding layovers).

from 18,000 ANA miles (economy, one way, based on the published award charts).

Nursultan Nazarbayev International Airport (NQZ) to Sunan Shuofang International Airport (WUX)・4,524 km

No nonstop flights. The fastest connection is via Ürümqi (URC), about 6h 26m of flying time (layover not included).

With milesANA 18,000 miles+ (via XIY)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

6 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.