AA 2848 then OO 9912 at O'Hare
New York JFK → Chicago → Richmond
Timetable, Chicago time
12:35AA 2848 from New York JFK at the gate
07:30OO 9912 to Richmond leaves the gate
18 h 55 apart on the timetable, overnight
OO 9912 leaves 18 h 55 after AA 2848 arrives on the timetable: more than half a day, so not a connection we count.