AA 6113 then DL 5630 at Charlotte
Knoxville → Charlotte → Boston
Timetable, Charlotte time
15:33AA 6113 from Knoxville at the gate
14:37DL 5630 to Boston leaves the gate
23 h 04 apart on the timetable, overnight
DL 5630 leaves 23 h 04 after AA 6113 arrives on the timetable: more than half a day, so not a connection we count.