AA 4367 then AA 1976 at O'Hare
Des Moines → Chicago → Puerto Vallarta
Timetable, Chicago time
09:10AA 4367 from Des Moines at the gate
08:43AA 1976 to Puerto Vallarta leaves the gate
23 h 33 apart on the timetable, overnight
AA 1976 leaves 23 h 33 after AA 4367 arrives on the timetable: more than half a day, so not a connection we count.