AA 1637 then AA 1153 at Charlotte
Washington → Charlotte → San Antonio
Timetable, Charlotte time
07:38AA 1637 from Washington at the gate
20:44AA 1153 to San Antonio leaves the gate
13 h 06 apart on the timetable
AA 1153 leaves 13 h 06 after AA 1637 arrives on the timetable: more than half a day, so not a connection we count.