AA 1681 then LA 591 at Miami
Knoxville → Miami → Punta Cana
Timetable, Miami time
08:16AA 1681 from Knoxville at the gate
08:00LA 591 to Punta Cana leaves the gate
23 h 44 apart on the timetable, overnight
LA 591 leaves 23 h 44 after AA 1681 arrives on the timetable: more than half a day, so not a connection we count.