AA 5825 then AA 5543 at Charlotte
Knoxville → Charlotte → Pittsburgh
Timetable, Charlotte time
17:36AA 5825 from Knoxville at the gate
08:35AA 5543 to Pittsburgh leaves the gate
14 h 59 apart on the timetable, overnight
AA 5543 leaves 14 h 59 after AA 5825 arrives on the timetable: more than half a day, so not a connection we count.