AA 1992 then DL 2684 at Charlotte
St Louis → Charlotte → Detroit
Timetable, Charlotte time
13:29AA 1992 from St Louis at the gate
13:25DL 2684 to Detroit leaves the gate
23 h 56 apart on the timetable, overnight
DL 2684 leaves 23 h 56 after AA 1992 arrives on the timetable: more than half a day, so not a connection we count.