AA 6365 then QR 76 at O'Hare
Waterloo → Chicago → Milan
Timetable, Chicago time
17:24AA 6365 from Waterloo at the gate
14:45QR 76 to Milan leaves the gate
21 h 21 apart on the timetable, overnight
QR 76 leaves 21 h 21 after AA 6365 arrives on the timetable: more than half a day, so not a connection we count.