AA 398 then QR 3391 at San Francisco
Charlotte → San Francisco → San Diego
Timetable, San Francisco time
13:52AA 398 from Charlotte at the gate
10:29QR 3391 to San Diego leaves the gatealso QF 3748
20 h 37 apart on the timetable, overnight
QR 3391 leaves 20 h 37 after AA 398 arrives on the timetable: more than half a day, so not a connection we count.