CZ 435 then AA 4748 at O'Hare
Anchorage → Chicago → Pittsburgh
Timetable, Chicago time
17:05CZ 435 from Anchorage at the gate
09:45AA 4748 to Pittsburgh leaves the gate
16 h 40 apart on the timetable, overnight
AA 4748 leaves 16 h 40 after CZ 435 arrives on the timetable: more than half a day, so not a connection we count.