Are there nonstop flights from Seoul (GMP) to Wuxi (WUX)?

No. The fastest connection is via Jeju City, about 2h 15m of total flying time.

What is the fastest connection from Seoul (GMP) to Wuxi (WUX)?

via Jeju City ≈ 2h 15m, via Beijing ≈ 3h 14m, via Beijing ≈ 3h 17m (estimated flying time, excluding layovers).

from 11,000 ANA miles (economy, one way, based on the published award charts).

Seoul Gimpo International Airport (GMP) to Sunan Shuofang International Airport (WUX)・890 km

No nonstop flights. The fastest connection is via Jeju City (CJU), about 2h 15m of flying time (layover not included).

With milesANA 11,000 miles+ (via PEK)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

4 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.