BR 608 then UA 1335 at O'Hare
Anchorage → Chicago → Buffalo
Timetable, Chicago time
20:40BR 608 from Anchorage at the gate
17:59UA 1335 to Buffalo leaves the gate
21 h 19 apart on the timetable, overnight
UA 1335 leaves 21 h 19 after BR 608 arrives on the timetable: more than half a day, so not a connection we count.