UA 892 then AV 2354 at San Francisco
Seoul → San Francisco → Denver
Timetable, San Francisco time
11:45UA 892 from Seoul at the gatealso OZ 6614
05:00AV 2354 to Denver leaves the gate
17 h 15 apart on the timetable, overnight
AV 2354 leaves 17 h 15 after UA 892 arrives on the timetable: more than half a day, so not a connection we count.