Are there nonstop flights from Calgary (YYC) to Seoul (ICN)?

Yes. WestJet fly this route. Flight time is about 10h 33m.

What is the fastest connection from Calgary (YYC) to Seoul (ICN)?

via Vancouver ≈ 11h 27m, via Seattle ≈ 11h 42m, via Tokyo ≈ 11h 50m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 37,000 JAL miles (economy, one way, based on the published award charts).

Calgary International Airport (YYC) to Incheon International Airport (ICN)・8,542 km

Nonstop flights available (1 airline). Flight time about 10h 33m. Nonstop return flights also operate.

With milesANA 30,000 miles+ (via YVR)JAL 37,000 miles+ (via SEA)Economy, one way, estimate. Tap a connection for miles by cabin.

27 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.