Are there nonstop flights from Seoul (ICN) to Monterrey (MTY)?

Yes. Aeroméxico fly this route. Flight time is about 13h 59m.

What is the fastest connection from Seoul (ICN) to Monterrey (MTY)?

via Salt Lake City ≈ 14h 30m, via Las Vegas ≈ 14h 31m, via San Francisco ≈ 14h 36m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 45,000 JAL miles (economy, one way, based on the published award charts).

Incheon International Airport (ICN) to Monterrey International Airport (MTY)・11,466 km

Nonstop flights available (1 airline). Flight time about 13h 59m. Nonstop return flights also operate.

With milesANA 30,000 miles+ (via SFO)JAL 45,000 miles+ (via DFW)Economy, one way, estimate. Tap a connection for miles by cabin.

14 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.