CV 21 then UA 658 at O'Hare
Anchorage → Chicago → Las Vegas
Timetable, Chicago time
22:27CV 21 from Anchorage at the gate
20:19UA 658 to Las Vegas leaves the gate
21 h 52 apart on the timetable, overnight
UA 658 leaves 21 h 52 after CV 21 arrives on the timetable: more than half a day, so not a connection we count.