UA 308 then QR 76 at O'Hare
Philadelphia → Chicago → Milan
Timetable, Chicago time
18:34UA 308 from Philadelphia at the gate
14:45QR 76 to Milan leaves the gate
20 h 11 apart on the timetable, overnight
QR 76 leaves 20 h 11 after UA 308 arrives on the timetable: more than half a day, so not a connection we count.