CZ 435 then AA 4991 at O'Hare
Anchorage → Chicago → Nashville
Timetable, Chicago time
15:58CZ 435 from Anchorage at the gate
08:50AA 4991 to Nashville leaves the gate
16 h 52 apart on the timetable, overnight
AA 4991 leaves 16 h 52 after CZ 435 arrives on the timetable: more than half a day, so not a connection we count.