B6 1860 then DL 5620 at Boston
Philadelphia → Boston → Cincinnati
Timetable, Boston time
17:25B6 1860 from Philadelphia at the gate
17:00DL 5620 to Cincinnati leaves the gate
23 h 35 apart on the timetable, overnight
DL 5620 leaves 23 h 35 after B6 1860 arrives on the timetable: more than half a day, so not a connection we count.