AA 1918 then CI 5239 at O'Hare
Miami → Chicago → Anchorage
Timetable, Chicago time
23:56AA 1918 from Miami at the gate
21:55CI 5239 to Anchorage leaves the gate
21 h 59 apart on the timetable, overnight
CI 5239 leaves 21 h 59 after AA 1918 arrives on the timetable: more than half a day, so not a connection we count.