DL 8800 then B6 159 at Boston
Miami → Boston → Philadelphia
Timetable, Boston time
19:09DL 8800 from Miami at the gate
19:00B6 159 to Philadelphia leaves the gate
23 h 51 apart on the timetable, overnight
B6 159 leaves 23 h 51 after DL 8800 arrives on the timetable: more than half a day, so not a connection we count.