AA 377 then UA 5539 at O'Hare
Raleigh-Durham → Chicago → Moline
Timetable, Chicago time
07:37AA 377 from Raleigh-Durham at the gate
21:47UA 5539 to Moline leaves the gate
14 h 10 apart on the timetable
UA 5539 leaves 14 h 10 after AA 377 arrives on the timetable: more than half a day, so not a connection we count.