Y8 7469 then AA 564 at O'Hare
Anchorage → Chicago → Buffalo
Timetable, Chicago time
21:46Y8 7469 from Anchorage at the gate
21:16AA 564 to Buffalo leaves the gate
23 h 30 apart on the timetable, overnight
AA 564 leaves 23 h 30 after Y8 7469 arrives on the timetable: more than half a day, so not a connection we count.