AA 5536 then UA 6203 at Charlotte
Norfolk → Charlotte → Washington
Timetable, Charlotte time
15:28AA 5536 from Norfolk at the gate
15:05UA 6203 to Washington leaves the gate
23 h 37 apart on the timetable, overnight
UA 6203 leaves 23 h 37 after AA 5536 arrives on the timetable: more than half a day, so not a connection we count.