AA 2898 then AA 6445 at Charlotte
Jacksonville → Charlotte → Knoxville
Timetable, Charlotte time
16:11AA 2898 from Jacksonville at the gate
15:35AA 6445 to Knoxville leaves the gate
23 h 24 apart on the timetable, overnight
AA 6445 leaves 23 h 24 after AA 2898 arrives on the timetable: more than half a day, so not a connection we count.