AA 9950 then UA 5826 at O'Hare
Philadelphia → Chicago → Kansas City
Timetable, Chicago time
13:49AA 9950 from Philadelphia at the gate
10:25UA 5826 to Kansas City leaves the gate
20 h 36 apart on the timetable, overnight
UA 5826 leaves 20 h 36 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.