AZ 614 then DL 5630 at Boston
Rome → Boston → Charlotte
Timetable, Boston time
13:45AZ 614 from Rome at the gate
11:15DL 5630 to Charlotte leaves the gate
21 h 30 apart on the timetable, overnight
DL 5630 leaves 21 h 30 after AZ 614 arrives on the timetable: more than half a day, so not a connection we count.