AA 4440 then UA 3751 at O'Hare
Madison → Chicago → Cedar Rapids
Timetable, Chicago time
07:30AA 4440 from Madison at the gate
20:10UA 3751 to Cedar Rapids leaves the gate
12 h 40 apart on the timetable
UA 3751 leaves 12 h 40 after AA 4440 arrives on the timetable: more than half a day, so not a connection we count.