AA 6017 then AA 3308 at Philadelphia
Buffalo → Philadelphia → Boston
Timetable, Philadelphia time
07:42AA 6017 from Buffalo at the gate
07:35AA 3308 to Boston leaves the gate
23 h 53 apart on the timetable, overnight
AA 3308 leaves 23 h 53 after AA 6017 arrives on the timetable: more than half a day, so not a connection we count.