AA 387 then WN 1232 at Charlotte
Cleveland → Charlotte → St Louis
Timetable, Charlotte time
11:39AA 387 from Cleveland at the gate
11:30WN 1232 to St Louis leaves the gate
23 h 51 apart on the timetable, overnight
WN 1232 leaves 23 h 51 after AA 387 arrives on the timetable: more than half a day, so not a connection we count.