KE 23 then UA 354 at San Francisco
Seoul → San Francisco → Indianapolis
Timetable, San Francisco time
09:35KE 23 from Seoul at the gatealso DL 7860
09:27UA 354 to Indianapolis leaves the gatealso NZ 2729, VA 8290
23 h 52 apart on the timetable, overnight
UA 354 leaves 23 h 52 after KE 23 arrives on the timetable: more than half a day, so not a connection we count.