AA 1610 then DL 5630 at Charlotte
Denver → Charlotte → Boston
Timetable, Charlotte time
15:34AA 1610 from Denver at the gate
14:37DL 5630 to Boston leaves the gate
23 h 03 apart on the timetable, overnight
DL 5630 leaves 23 h 03 after AA 1610 arrives on the timetable: more than half a day, so not a connection we count.