AA 3059 then CA 3174 at O'Hare
San Antonio → Chicago → Guangzhou
Timetable, Chicago time
17:54AA 3059 from San Antonio at the gate
13:40CA 3174 to Guangzhou leaves the gate
19 h 46 apart on the timetable, overnight
CA 3174 leaves 19 h 46 after AA 3059 arrives on the timetable: more than half a day, so not a connection we count.