CV 12 then UA 4644 at O'Hare
Anchorage → Chicago → Detroit
Timetable, Chicago time
19:11CV 12 from Anchorage at the gate
15:00UA 4644 to Detroit leaves the gate
19 h 49 apart on the timetable, overnight
UA 4644 leaves 19 h 49 after CV 12 arrives on the timetable: more than half a day, so not a connection we count.