AA 5847 then AA 2937 at Charlotte
Augusta → Charlotte → St Louis
Timetable, Charlotte time
06:15AA 5847 from Augusta at the gate
18:30AA 2937 to St Louis leaves the gate
12 h 15 apart on the timetable
AA 2937 leaves 12 h 15 after AA 5847 arrives on the timetable: more than half a day, so not a connection we count.