AA 300 then KJ 281 at LAX
New York JFK → Los Angeles → Seoul
Timetable, Los Angeles time
00:56AA 300 from New York JFK at the gate
21:05KJ 281 to Seoul leaves the gate
20 h 09 apart on the timetable
KJ 281 leaves 20 h 09 after AA 300 arrives on the timetable: more than half a day, so not a connection we count.