UA 291 then QR 76 at O'Hare
Savannah → Chicago → Milan
Timetable, Chicago time
18:29UA 291 from Savannah at the gate
14:45QR 76 to Milan leaves the gate
20 h 16 apart on the timetable, overnight
QR 76 leaves 20 h 16 after UA 291 arrives on the timetable: more than half a day, so not a connection we count.