Kumamoto Airport (KMJ) is the origin airport and Incheon International Airport (ICN) is the destination airport.
KMJ and ICN are approximately 405 miles apart by great-circle distance.
Yes. Roame's current schedule feed shows nonstop service from KMJ to ICN.
Airlines represented in the current schedule are Delta Air Lines (DL), Japan Airlines (JL), Korean Air (KE), Asiana Airlines (OZ) and T'way Air (TW).
Aircraft listed in the current schedule include Airbus A220-300 (223), Airbus A321neo (32Q), Boeing 737-800 (738), Boeing 737-900 Winglets (73J) and JET.