UA 5974 then UA 5539 at O'Hare
Duluth → Chicago → Moline
Timetable, Chicago time
08:29UA 5974 from Duluth at the gate
21:47UA 5539 to Moline leaves the gate
13 h 18 apart on the timetable
UA 5539 leaves 13 h 18 after UA 5974 arrives on the timetable: more than half a day, so not a connection we count.