AA 2576 then UA 1394 at O'Hare
Charlotte → Chicago → San Antonio
Timetable, Chicago time
20:11AA 2576 from Charlotte at the gate
19:52UA 1394 to San Antonio leaves the gate
23 h 41 apart on the timetable, overnight
UA 1394 leaves 23 h 41 after AA 2576 arrives on the timetable: more than half a day, so not a connection we count.