DL 4903 then OO 9912 at O'Hare
New York JFK → Chicago → Richmond
Timetable, Chicago time
09:27DL 4903 from New York JFK at the gate
07:30OO 9912 to Richmond leaves the gate
22 h 03 apart on the timetable, overnight
OO 9912 leaves 22 h 03 after DL 4903 arrives on the timetable: more than half a day, so not a connection we count.