AA 1975 then AA 2562 at Charlotte
Hartford → Charlotte → St Louis
Timetable, Charlotte time
10:30AA 1975 from Hartford at the gate
22:51AA 2562 to St Louis leaves the gate
12 h 21 apart on the timetable
AA 2562 leaves 12 h 21 after AA 1975 arrives on the timetable: more than half a day, so not a connection we count.