UA 2847 then UA 5539 at O'Hare
San Francisco → Chicago → Moline
Timetable, Chicago time
07:13UA 2847 from San Francisco at the gate
21:47UA 5539 to Moline leaves the gate
14 h 34 apart on the timetable
UA 5539 leaves 14 h 34 after UA 2847 arrives on the timetable: more than half a day, so not a connection we count.