DL 1199 then CA 1056 at O'Hare
Atlanta → Chicago → Shanghai
Timetable, Chicago time
23:54DL 1199 from Atlanta at the gate
23:30CA 1056 to Shanghai leaves the gate
23 h 36 apart on the timetable, overnight
CA 1056 leaves 23 h 36 after DL 1199 arrives on the timetable: more than half a day, so not a connection we count.