CI 5240 then AA 1907 at O'Hare
Anchorage → Chicago → Cancún
Timetable, Chicago time
15:04CI 5240 from Anchorage at the gate
07:10AA 1907 to Cancún leaves the gate
16 h 06 apart on the timetable, overnight
AA 1907 leaves 16 h 06 after CI 5240 arrives on the timetable: more than half a day, so not a connection we count.