AA 387 then WN 1241 at Charlotte
Cleveland → Charlotte → St Louis
Timetable, Charlotte time
11:39AA 387 from Cleveland at the gate
10:40WN 1241 to St Louis leaves the gate
23 h 01 apart on the timetable, overnight
WN 1241 leaves 23 h 01 after AA 387 arrives on the timetable: more than half a day, so not a connection we count.