AA 4509 then CI 5233 at O'Hare
Knoxville → Chicago → Anchorage
Timetable, Chicago time
09:10AA 4509 from Knoxville at the gate
21:55CI 5233 to Anchorage leaves the gate
12 h 45 apart on the timetable
CI 5233 leaves 12 h 45 after AA 4509 arrives on the timetable: more than half a day, so not a connection we count.