UA 5570 then UA 5539 at O'Hare
Harrisburg → Chicago → Moline
Timetable, Chicago time
07:50UA 5570 from Harrisburg at the gate
21:47UA 5539 to Moline leaves the gate
13 h 57 apart on the timetable
UA 5539 leaves 13 h 57 after UA 5570 arrives on the timetable: more than half a day, so not a connection we count.