AA 9928 then UA 457 at O'Hare
New York LaGuardia → Chicago → Cleveland
Timetable, Chicago time
06:45AA 9928 from New York LaGuardia at the gate
21:36UA 457 to Cleveland leaves the gate
14 h 51 apart on the timetable
UA 457 leaves 14 h 51 after AA 9928 arrives on the timetable: more than half a day, so not a connection we count.