DL 1716 then AA 9912 at O'Hare
Detroit → Chicago → Richmond
Timetable, Chicago time
13:59DL 1716 from Detroit at the gate
07:30AA 9912 to Richmond leaves the gate
17 h 31 apart on the timetable, overnight
AA 9912 leaves 17 h 31 after DL 1716 arrives on the timetable: more than half a day, so not a connection we count.