AA 2847 then DL 5845 at Philadelphia
Indianapolis → Philadelphia → Boston
Timetable, Philadelphia time
09:22AA 2847 from Indianapolis at the gate
09:00DL 5845 to Boston leaves the gate
23 h 38 apart on the timetable, overnight
DL 5845 leaves 23 h 38 after AA 2847 arrives on the timetable: more than half a day, so not a connection we count.