AA 3438 then CK 626 at O'Hare
El Paso → Chicago → Shanghai
Timetable, Chicago time
11:10AA 3438 from El Paso at the gate
00:01CK 626 to Shanghai leaves the gate
12 h 51 apart on the timetable, overnight
CK 626 leaves 12 h 51 after AA 3438 arrives on the timetable: more than half a day, so not a connection we count.