CV 278 then Y4 701 at O'Hare
Anchorage → Chicago → Mexico City
Timetable, Chicago time
14:22CV 278 from Anchorage at the gate
06:29Y4 701 to Mexico City leaves the gate
16 h 07 apart on the timetable, overnight
Y4 701 leaves 16 h 07 after CV 278 arrives on the timetable: more than half a day, so not a connection we count.