AA 9950 then AA 2305 at O'Hare
Philadelphia → Chicago → Washington National
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
12:59AA 2305 to Washington National leaves the gate
23 h 10 apart on the timetable, overnight
AA 2305 leaves 23 h 10 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.