AA 5585 then B6 1148 at Charlotte
Louisville → Charlotte → Fort Lauderdale
Timetable, Charlotte time
19:21AA 5585 from Louisville at the gate
15:10B6 1148 to Fort Lauderdale leaves the gate
19 h 49 apart on the timetable, overnight
B6 1148 leaves 19 h 49 after AA 5585 arrives on the timetable: more than half a day, so not a connection we count.