AA 9950 then AA 6283 at O'Hare
Philadelphia → Chicago → Des Moines
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
11:54AA 6283 to Des Moines leaves the gate
22 h 05 apart on the timetable, overnight
AA 6283 leaves 22 h 05 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.