AA 4537 then CA 8414 at O'Hare
San Antonio → Chicago → Shanghai
Timetable, Chicago time
21:53AA 4537 from San Antonio at the gate
20:45CA 8414 to Shanghai leaves the gate
22 h 52 apart on the timetable, overnight
CA 8414 leaves 22 h 52 after AA 4537 arrives on the timetable: more than half a day, so not a connection we count.