AA 5220 then UA 4836 at Dulles
Charlotte → Washington → Columbus (Ohio)
Timetable, Washington time
12:53AA 5220 from Charlotte at the gate
12:49UA 4836 to Columbus (Ohio) leaves the gate
23 h 56 apart on the timetable, overnight
UA 4836 leaves 23 h 56 after AA 5220 arrives on the timetable: more than half a day, so not a connection we count.