UA 3903 then UA 528 at San Francisco
Seoul → San Francisco → Cleveland
Timetable, San Francisco time
08:46UA 3903 from Seoul at the gate
23:20UA 528 to Cleveland leaves the gatealso VA 8487, NZ 9041, OZ 9525
14 h 34 apart on the timetable
UA 528 leaves 14 h 34 after UA 3903 arrives on the timetable: more than half a day, so not a connection we count.