AA 3515 then UA 1156 at O'Hare
Appleton → Chicago → Cleveland
Timetable, Chicago time
07:12AA 3515 from Appleton at the gate
19:49UA 1156 to Cleveland leaves the gate
12 h 37 apart on the timetable
UA 1156 leaves 12 h 37 after AA 3515 arrives on the timetable: more than half a day, so not a connection we count.