Are there nonstop flights from Buffalo (BUF) to Seoul (ICN)?

No. The fastest connection is via Detroit, about 13h 59m of total flying time.

What is the fastest connection from Buffalo (BUF) to Seoul (ICN)?

via Detroit ≈ 13h 59m, via Minneapolis ≈ 14h 11m, via Chicago ≈ 14h 17m (estimated flying time, excluding layovers).

from 30,000 ANA miles, from 47,000 JAL miles (economy, one way, based on the published award charts).

Buffalo Niagara International Airport (BUF) to Incheon International Airport (ICN)・10,719 km

No nonstop flights. The fastest connection is via Detroit (DTW), about 13h 59m of flying time (layover not included).

With milesANA 30,000 miles+ (via EWR)JAL 47,000 miles+ (via DFW)Economy, one way, estimate. Tap a connection for miles by cabin.

None.

11 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.