AA 5191 then AA 3268 at Charlotte
Knoxville → Charlotte → Punta Cana
Timetable, Charlotte time
07:29AA 5191 from Knoxville at the gate
07:10AA 3268 to Punta Cana leaves the gate
23 h 41 apart on the timetable, overnight
AA 3268 leaves 23 h 41 after AA 5191 arrives on the timetable: more than half a day, so not a connection we count.