AA 6486 then AS 1447 at O'Hare
Detroit → Chicago → San Diego
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
14:15AS 1447 to San Diego leaves the gate
20 h 46 apart on the timetable, overnight
AS 1447 leaves 20 h 46 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.