CV 251 then UA 5853 at O'Hare
Anchorage → Chicago → Saginaw
Timetable, Chicago time
21:32CV 251 from Anchorage at the gate
10:25UA 5853 to Saginaw leaves the gate
12 h 53 apart on the timetable, overnight
UA 5853 leaves 12 h 53 after CV 251 arrives on the timetable: more than half a day, so not a connection we count.