AC 501 then K4 810 at O'Hare
Toronto Pearson → Chicago → Anchorage
Timetable, Chicago time
09:23AC 501 from Toronto Pearson at the gate
04:00K4 810 to Anchorage leaves the gate
18 h 37 apart on the timetable, overnight
K4 810 leaves 18 h 37 after AC 501 arrives on the timetable: more than half a day, so not a connection we count.