AA 2745 then CX 2081 at O'Hare
Las Vegas → Chicago → Anchorage
Timetable, Chicago time
23:35AA 2745 from Las Vegas at the gate
12:55CX 2081 to Anchorage leaves the gate
13 h 20 apart on the timetable, overnight
CX 2081 leaves 13 h 20 after AA 2745 arrives on the timetable: more than half a day, so not a connection we count.