AA 1225 then DL 5630 at Boston
Miami → Boston → Charlotte
Timetable, Boston time
12:44AA 1225 from Miami at the gate
11:15DL 5630 to Charlotte leaves the gate
22 h 31 apart on the timetable, overnight
DL 5630 leaves 22 h 31 after AA 1225 arrives on the timetable: more than half a day, so not a connection we count.