AA 6113 then AA 5670 at Charlotte
Knoxville → Charlotte → Lexington
Timetable, Charlotte time
15:33AA 6113 from Knoxville at the gate
14:49AA 5670 to Lexington leaves the gate
23 h 16 apart on the timetable, overnight
AA 5670 leaves 23 h 16 after AA 6113 arrives on the timetable: more than half a day, so not a connection we count.