AA 5634 then AA 6112 at Charlotte
Louisville → Charlotte → Knoxville
Timetable, Charlotte time
14:36AA 5634 from Louisville at the gate
14:06AA 6112 to Knoxville leaves the gate
23 h 30 apart on the timetable, overnight
AA 6112 leaves 23 h 30 after AA 5634 arrives on the timetable: more than half a day, so not a connection we count.