AM 686 then CX 2081 at O'Hare
Mexico City → Chicago → Anchorage
Timetable, Chicago time
13:12AM 686 from Mexico City at the gate
12:55CX 2081 to Anchorage leaves the gate
23 h 43 apart on the timetable, overnight
CX 2081 leaves 23 h 43 after AM 686 arrives on the timetable: more than half a day, so not a connection we count.