AA 9950 then OO 6045 at O'Hare
Philadelphia → Chicago → Grand Rapids
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
13:37OO 6045 to Grand Rapids leaves the gate
23 h 48 apart on the timetable, overnight
OO 6045 leaves 23 h 48 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.