KJ 282 then UA 457 at LAX
Seoul → Los Angeles → Chicago O'Hare
Timetable, Los Angeles time
18:24KJ 282 from Seoul at the gate
12:40UA 457 to Chicago O'Hare leaves the gate
18 h 16 apart on the timetable, overnight
UA 457 leaves 18 h 16 after KJ 282 arrives on the timetable: more than half a day, so not a connection we count.