DL 2894 then AA 9912 at O'Hare
Atlanta → Chicago → Richmond
Timetable, Chicago time
12:20DL 2894 from Atlanta at the gate
07:30AA 9912 to Richmond leaves the gate
19 h 10 apart on the timetable, overnight
AA 9912 leaves 19 h 10 after DL 2894 arrives on the timetable: more than half a day, so not a connection we count.