AA 3972 then CI 5233 at O'Hare
Bloomington-Normal → Chicago → Anchorage
Timetable, Chicago time
15:45AA 3972 from Bloomington-Normal at the gate
13:55CI 5233 to Anchorage leaves the gate
22 h 10 apart on the timetable, overnight
CI 5233 leaves 22 h 10 after AA 3972 arrives on the timetable: more than half a day, so not a connection we count.