ET 574 then QF 7554 at O'Hare
Rome → Chicago → Honolulu
Timetable, Chicago time
07:40ET 574 from Rome at the gate
20:30QF 7554 to Honolulu leaves the gate
12 h 50 apart on the timetable
QF 7554 leaves 12 h 50 after ET 574 arrives on the timetable: more than half a day, so not a connection we count.