F9 2072 then AA 5437 at Philadelphia
Raleigh-Durham → Philadelphia → Washington National
Timetable, Philadelphia time
16:24F9 2072 from Raleigh-Durham at the gate
16:11AA 5437 to Washington National leaves the gate
23 h 47 apart on the timetable, overnight
AA 5437 leaves 23 h 47 after F9 2072 arrives on the timetable: more than half a day, so not a connection we count.