KJ 242 then AA 2202 at O'Hare
Anchorage → Chicago → Buffalo
Timetable, Chicago time
23:55KJ 242 from Anchorage at the gate
15:19AA 2202 to Buffalo leaves the gate
15 h 24 apart on the timetable, overnight
AA 2202 leaves 15 h 24 after KJ 242 arrives on the timetable: more than half a day, so not a connection we count.