AA 3512 then UA 5201 at O'Hare
Cedar Rapids → Chicago → Milwaukee
Timetable, Chicago time
06:29AA 3512 from Cedar Rapids at the gate
20:00UA 5201 to Milwaukee leaves the gate
13 h 31 apart on the timetable
UA 5201 leaves 13 h 31 after AA 3512 arrives on the timetable: more than half a day, so not a connection we count.