Are there nonstop flights from Changzhou (CZX) to Seoul (ICN)?

No. The fastest connection is via Weihai, about 2h 10m of total flying time.

What is the fastest connection from Changzhou (CZX) to Seoul (ICN)?

via Weihai ≈ 2h 10m, via Qingdao ≈ 2h 16m, via Yantai ≈ 2h 20m (estimated flying time, excluding layovers).

from 11,000 ANA miles, from 12,000 JAL miles (economy, one way, based on the published award charts).

Changzhou Benniu International Airport (CZX) to Incheon International Airport (ICN)・867 km

No nonstop flights. The fastest connection is via Weihai (WEH), about 2h 10m of flying time (layover not included).

With milesANA 11,000 miles+ (via DLC)JAL 12,000 miles+ (via WEH)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

9 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.