AA 1992 then AA 2776 at Charlotte
St Louis → Charlotte → Boston
Timetable, Charlotte time
13:14AA 1992 from St Louis at the gate
08:55AA 2776 to Boston leaves the gate
19 h 41 apart on the timetable, overnight
AA 2776 leaves 19 h 41 after AA 1992 arrives on the timetable: more than half a day, so not a connection we count.