AA 6486 then AA 4541 at O'Hare
Detroit → Chicago → Indianapolis
Timetable, Chicago time
17:29AA 6486 from Detroit at the gate
12:38AA 4541 to Indianapolis leaves the gate
19 h 09 apart on the timetable, overnight
AA 4541 leaves 19 h 09 after AA 6486 arrives on the timetable: more than half a day, so not a connection we count.