AA 9928 then UA 4534 at O'Hare
New York LaGuardia → Chicago → Richmond
Timetable, Chicago time
06:45AA 9928 from New York LaGuardia at the gate
21:20UA 4534 to Richmond leaves the gate
14 h 35 apart on the timetable
UA 4534 leaves 14 h 35 after AA 9928 arrives on the timetable: more than half a day, so not a connection we count.