ET 574 then K4 810 at O'Hare
Rome → Chicago → Anchorage
Timetable, Chicago time
07:40ET 574 from Rome at the gate
04:00K4 810 to Anchorage leaves the gate
20 h 20 apart on the timetable, overnight
K4 810 leaves 20 h 20 after ET 574 arrives on the timetable: more than half a day, so not a connection we count.