AA 6445 then AA 5174 at Charlotte
Knoxville → Charlotte → Dayton
Timetable, Charlotte time
18:43AA 6445 from Knoxville at the gate
18:24AA 5174 to Dayton leaves the gate
23 h 41 apart on the timetable, overnight
AA 5174 leaves 23 h 41 after AA 6445 arrives on the timetable: more than half a day, so not a connection we count.