AA 4401 then UA 5539 at O'Hare
Norfolk → Chicago → Moline
Timetable, Chicago time
08:00AA 4401 from Norfolk at the gate
21:47UA 5539 to Moline leaves the gate
13 h 47 apart on the timetable
UA 5539 leaves 13 h 47 after AA 4401 arrives on the timetable: more than half a day, so not a connection we count.