AA 9950 then AA 4776 at O'Hare
Philadelphia → Chicago → Kansas City
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
09:17AA 4776 to Kansas City leaves the gate
19 h 28 apart on the timetable, overnight
AA 4776 leaves 19 h 28 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.