AA 3524 then K4 810 at O'Hare
Toronto Pearson → Chicago → Anchorage
Timetable, Chicago time
08:39AA 3524 from Toronto Pearson at the gate
04:00K4 810 to Anchorage leaves the gate
19 h 21 apart on the timetable, overnight
K4 810 leaves 19 h 21 after AA 3524 arrives on the timetable: more than half a day, so not a connection we count.