AA 1918 then CX 2081 at O'Hare
Miami → Chicago → Anchorage
Timetable, Chicago time
23:56AA 1918 from Miami at the gate
12:55CX 2081 to Anchorage leaves the gate
12 h 59 apart on the timetable, overnight
CX 2081 leaves 12 h 59 after AA 1918 arrives on the timetable: more than half a day, so not a connection we count.