DL 3502 then KJ 281 at LAX
Tucson → Los Angeles → Seoul
Timetable, Los Angeles time
08:40DL 3502 from Tucson at the gate
21:05KJ 281 to Seoul leaves the gate
12 h 25 apart on the timetable
KJ 281 leaves 12 h 25 after DL 3502 arrives on the timetable: more than half a day, so not a connection we count.