AA 1275 then UA 5539 at O'Hare
Newark → Chicago → Moline
Timetable, Chicago time
07:28AA 1275 from Newark at the gate
21:47UA 5539 to Moline leaves the gate
14 h 19 apart on the timetable
UA 5539 leaves 14 h 19 after AA 1275 arrives on the timetable: more than half a day, so not a connection we count.