AA 3852 then UA 5522 at O'Hare
Chattanooga → Chicago → Kansas City
Timetable, Chicago time
11:10AA 3852 from Chattanooga at the gate
08:40UA 5522 to Kansas City leaves the gate
21 h 30 apart on the timetable, overnight
UA 5522 leaves 21 h 30 after AA 3852 arrives on the timetable: more than half a day, so not a connection we count.