AA 2211 then UA 5201 at O'Hare
Minneapolis → Chicago → Milwaukee
Timetable, Chicago time
07:09AA 2211 from Minneapolis at the gate
20:00UA 5201 to Milwaukee leaves the gate
12 h 51 apart on the timetable
UA 5201 leaves 12 h 51 after AA 2211 arrives on the timetable: more than half a day, so not a connection we count.