UA 5308 then UA 5539 at O'Hare
Des Moines → Chicago → Moline
Timetable, Chicago time
07:42UA 5308 from Des Moines at the gate
21:47UA 5539 to Moline leaves the gate
14 h 05 apart on the timetable
UA 5539 leaves 14 h 05 after UA 5308 arrives on the timetable: more than half a day, so not a connection we count.