AM 90 then 7C 1811 at Incheon
Monterrey → Seoul → Oita
Timetable, Seoul time
14:15AM 90 from Monterrey at the gate
11:057C 1811 to Oita leaves the gate
20 h 50 apart on the timetable, overnight
7C 1811 leaves 20 h 50 after AM 90 arrives on the timetable: more than half a day, so not a connection we count.