AA 5220 then UA 3656 at Dulles
Charlotte → Washington → Kansas City
Timetable, Washington time
12:53AA 5220 from Charlotte at the gate
12:35UA 3656 to Kansas City leaves the gate
23 h 42 apart on the timetable, overnight
UA 3656 leaves 23 h 42 after AA 5220 arrives on the timetable: more than half a day, so not a connection we count.