AA 5021 then AA 1159 at Charlotte
St Louis → Charlotte → Fort Lauderdale
Timetable, Charlotte time
19:29AA 5021 from St Louis at the gate
16:51AA 1159 to Fort Lauderdale leaves the gate
21 h 22 apart on the timetable, overnight
AA 1159 leaves 21 h 22 after AA 5021 arrives on the timetable: more than half a day, so not a connection we count.