AA 5281 then AA 2562 at Charlotte
Cincinnati → Charlotte → St Louis
Timetable, Charlotte time
10:15AA 5281 from Cincinnati at the gate
22:51AA 2562 to St Louis leaves the gate
12 h 36 apart on the timetable
AA 2562 leaves 12 h 36 after AA 5281 arrives on the timetable: more than half a day, so not a connection we count.