UA 5823 then AA 9912 at O'Hare
Oklahoma City → Chicago → Richmond
Timetable, Chicago time
12:29UA 5823 from Oklahoma City at the gate
07:30AA 9912 to Richmond leaves the gate
19 h 01 apart on the timetable, overnight
AA 9912 leaves 19 h 01 after UA 5823 arrives on the timetable: more than half a day, so not a connection we count.