AA 9928 then UA 4748 at O'Hare
New York LaGuardia → Chicago → Moline
Timetable, Chicago time
06:45AA 9928 from New York LaGuardia at the gate
20:05UA 4748 to Moline leaves the gate
13 h 20 apart on the timetable
UA 4748 leaves 13 h 20 after AA 9928 arrives on the timetable: more than half a day, so not a connection we count.