Are there nonstop flights from Kashgar (KHG) to Seoul (ICN)?

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

What is the fastest connection from Kashgar (KHG) to Seoul (ICN)?

via Beijing ≈ 6h 6m, via Beijing ≈ 6h 7m, via Ürümqi ≈ 6h 10m (estimated flying time, excluding layovers).

from 11,000 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Kashgar Laining International Airport (KHG) to Incheon International Airport (ICN)・4,336 km

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

With milesANA 11,000 miles+ (via PEK)JAL 23,000 miles+ (via XIY)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.