AA 873 then DL 2681 at Atlanta
Chicago O'Hare → Atlanta → Madison
Timetable, Atlanta time
10:23AA 873 from Chicago O'Hare at the gate
09:30DL 2681 to Madison leaves the gate
23 h 07 apart on the timetable, overnight
DL 2681 leaves 23 h 07 after AA 873 arrives on the timetable: more than half a day, so not a connection we count.