AA 2458 then KJ 281 at LAX
Miami → Los Angeles → Seoul
Timetable, Los Angeles time
00:36AA 2458 from Miami at the gate
21:05KJ 281 to Seoul leaves the gate
20 h 29 apart on the timetable
KJ 281 leaves 20 h 29 after AA 2458 arrives on the timetable: more than half a day, so not a connection we count.