AA 6345 then K4 910 at O'Hare
Lexington → Chicago → Anchorage
Timetable, Chicago time
11:59AA 6345 from Lexington at the gate
00:30K4 910 to Anchorage leaves the gate
12 h 31 apart on the timetable, overnight
K4 910 leaves 12 h 31 after AA 6345 arrives on the timetable: more than half a day, so not a connection we count.