DL 2270 then AA 2615 at Philadelphia
Atlanta → Philadelphia → Boston
Timetable, Philadelphia time
11:03DL 2270 from Atlanta at the gate
10:49AA 2615 to Boston leaves the gate
23 h 46 apart on the timetable, overnight
AA 2615 leaves 23 h 46 after DL 2270 arrives on the timetable: more than half a day, so not a connection we count.