UA 2844 then CA 1054 at O'Hare
New Orleans → Chicago → Beijing
Timetable, Chicago time
09:35UA 2844 from New Orleans at the gate
09:30CA 1054 to Beijing leaves the gate
23 h 55 apart on the timetable, overnight
CA 1054 leaves 23 h 55 after UA 2844 arrives on the timetable: more than half a day, so not a connection we count.