AA 1606 then AA 1331 at Charlotte
Chicago O'Hare → Charlotte → Washington National
Timetable, Charlotte time
08:25AA 1606 from Chicago O'Hare at the gate
20:27AA 1331 to Washington National leaves the gate
12 h 02 apart on the timetable
AA 1331 leaves 12 h 02 after AA 1606 arrives on the timetable: more than half a day, so not a connection we count.