UA 5215 then UA 5539 at O'Hare
South Bend → Chicago → Moline
Timetable, Chicago time
08:00UA 5215 from South Bend at the gate
21:47UA 5539 to Moline leaves the gate
13 h 47 apart on the timetable
UA 5539 leaves 13 h 47 after UA 5215 arrives on the timetable: more than half a day, so not a connection we count.