AA 1992 then AA 2651 at Charlotte
St Louis → Charlotte → San Francisco
Timetable, Charlotte time
13:29AA 1992 from St Louis at the gate
09:35AA 2651 to San Francisco leaves the gate
20 h 06 apart on the timetable, overnight
AA 2651 leaves 20 h 06 after AA 1992 arrives on the timetable: more than half a day, so not a connection we count.