AA 9950 then UA 1779 at O'Hare
Charlotte → Chicago → Washington
Timetable, Chicago time
08:30AA 9950 from Charlotte at the gate
21:41UA 1779 to Washington leaves the gate
13 h 11 apart on the timetable
UA 1779 leaves 13 h 11 after AA 9950 arrives on the timetable: more than half a day, so not a connection we count.