AA 3077 then K4 910 at O'Hare
Las Vegas → Chicago → Anchorage
Timetable, Chicago time
11:52AA 3077 from Las Vegas at the gate
00:30K4 910 to Anchorage leaves the gate
12 h 38 apart on the timetable, overnight
K4 910 leaves 12 h 38 after AA 3077 arrives on the timetable: more than half a day, so not a connection we count.