DL 1147 then AA 2809 at O'Hare
Atlanta → Chicago → Miami
Timetable, Chicago time
10:25DL 1147 from Atlanta at the gate
10:14AA 2809 to Miami leaves the gate
23 h 49 apart on the timetable, overnight
AA 2809 leaves 23 h 49 after DL 1147 arrives on the timetable: more than half a day, so not a connection we count.