Are there nonstop flights from Seoul (ICN) to Saint George's (GND)?

No. The fastest connection is via New York, about 18h 3m of total flying time.

What is the fastest connection from Seoul (ICN) to Saint George's (GND)?

via New York ≈ 18h 3m, via Toronto ≈ 18h 5m, via Atlanta ≈ 18h 26m (estimated flying time, excluding layovers).

from 61,000 ANA miles (economy, one way, based on the published award charts).

Incheon International Airport (ICN) to Maurice Bishop International Airport (GND)・14,447 km

No nonstop flights. The fastest connection is via New York (JFK), about 18h 3m of flying time (layover not included).

With milesANA 61,000 miles+ (via YYZ)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

5 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.