AA 4057 then CZ 2502 at O'Hare
Tulsa → Chicago → Shanghai
Timetable, Chicago time
08:29AA 4057 from Tulsa at the gate
20:50CZ 2502 to Shanghai leaves the gate
12 h 21 apart on the timetable
CZ 2502 leaves 12 h 21 after AA 4057 arrives on the timetable: more than half a day, so not a connection we count.