Are there nonstop flights from Ordos (DSN) to Seoul (ICN)?

Yes. China United Airlines fly this route. Flight time is about 2h 13m.

What is the fastest connection from Ordos (DSN) to Seoul (ICN)?

via Tianjin ≈ 2h 44m, via Beijing ≈ 2h 44m, via Yantai ≈ 2h 44m (estimated flying time, excluding layovers).

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

Ordos Ejin Horo International Airport (DSN) to Incheon International Airport (ICN)・1,459 km

Nonstop flights available (1 airline). Flight time about 2h 13m. Nonstop return flights also operate.

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

26 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.