UA 4576 then QR 76 at O'Hare
Greensboro → Chicago → Milan
Timetable, Chicago time
19:00UA 4576 from Greensboro at the gate
14:45QR 76 to Milan leaves the gate
19 h 45 apart on the timetable, overnight
QR 76 leaves 19 h 45 after UA 4576 arrives on the timetable: more than half a day, so not a connection we count.