CV 251 then UA 2811 at O'Hare
Anchorage → Chicago → Las Vegas
Timetable, Chicago time
19:00CV 251 from Anchorage at the gate
09:00UA 2811 to Las Vegas leaves the gate
14 h apart on the timetable, overnight
UA 2811 leaves 14 h after CV 251 arrives on the timetable: more than half a day, so not a connection we count.