AA 6486 then AA 4047 at O'Hare
Detroit → Chicago → Richmond
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
13:50AA 4047 to Richmond leaves the gate
20 h 21 apart on the timetable, overnight
AA 4047 leaves 20 h 21 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.