Are there nonstop flights from Seoul (ICN) to Kochi (COK)?

No. The fastest connection is via Colombo, about 8h 23m of total flying time.

What is the fastest connection from Seoul (ICN) to Kochi (COK)?

via Colombo ≈ 8h 23m, via Bangkok ≈ 8h 28m, via New Delhi ≈ 8h 54m (estimated flying time, excluding layovers).

from 18,500 ANA miles, from 23,000 JAL miles (economy, one way, based on the published award charts).

Incheon International Airport (ICN) to Cochin International Airport (COK)・5,837 km

No nonstop flights. The fastest connection is via Colombo (CMB), about 8h 23m of flying time (layover not included).

With milesANA 18,500 miles+ (via DEL)JAL 23,000 miles+ (via CMB)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

10 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.