CA 3103 then AA 2748 at O'Hare
Anchorage → Chicago → Las Vegas
Timetable, Chicago time
15:07CA 3103 from Anchorage at the gate
11:00AA 2748 to Las Vegas leaves the gate
19 h 53 apart on the timetable, overnight
AA 2748 leaves 19 h 53 after CA 3103 arrives on the timetable: more than half a day, so not a connection we count.