AA 9950 then AA 3375 at O'Hare
Philadelphia → Chicago → Fargo
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
09:55AA 3375 to Fargo leaves the gate
20 h 06 apart on the timetable, overnight
AA 3375 leaves 20 h 06 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.