AA 878 then AA 5406 at Charlotte
Orlando → Charlotte → Knoxville
Timetable, Charlotte time
20:01AA 878 from Orlando at the gate
19:30AA 5406 to Knoxville leaves the gate
23 h 29 apart on the timetable, overnight
AA 5406 leaves 23 h 29 after AA 878 arrives on the timetable: more than half a day, so not a connection we count.