CV 12 then UA 4752 at O'Hare
Anchorage → Chicago → Madison
Timetable, Chicago time
19:11CV 12 from Anchorage at the gate
16:40UA 4752 to Madison leaves the gate
21 h 29 apart on the timetable, overnight
UA 4752 leaves 21 h 29 after CV 12 arrives on the timetable: more than half a day, so not a connection we count.