AA 1366 then QR 76 at O'Hare
Denver → Chicago → Milan
Timetable, Chicago time
18:10AA 1366 from Denver at the gate
14:45QR 76 to Milan leaves the gate
20 h 35 apart on the timetable, overnight
QR 76 leaves 20 h 35 after AA 1366 arrives on the timetable: more than half a day, so not a connection we count.