AA 5825 then DL 5630 at Charlotte
Knoxville → Charlotte → Boston
Timetable, Charlotte time
17:03AA 5825 from Knoxville at the gate
14:37DL 5630 to Boston leaves the gate
21 h 34 apart on the timetable, overnight
DL 5630 leaves 21 h 34 after AA 5825 arrives on the timetable: more than half a day, so not a connection we count.