UA 561 then YP 112 at San Francisco
Kansas City → San Francisco → Seoul
Timetable, San Francisco time
20:10UA 561 from Kansas City at the gatealso OZ 6318, NZ 9502
15:20YP 112 to Seoul leaves the gate
19 h 10 apart on the timetable, overnight
YP 112 leaves 19 h 10 after UA 561 arrives on the timetable: more than half a day, so not a connection we count.