AA 9950 then AA 3490 at O'Hare
Philadelphia → Chicago → Grand Rapids
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
13:40AA 3490 to Grand Rapids leaves the gate
23 h 51 apart on the timetable, overnight
AA 3490 leaves 23 h 51 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.