UA 6209 then AA 5834 at Charlotte
Washington → Charlotte → Roanoke
Timetable, Charlotte time
18:57UA 6209 from Washington at the gate
18:34AA 5834 to Roanoke leaves the gate
23 h 37 apart on the timetable, overnight
AA 5834 leaves 23 h 37 after UA 6209 arrives on the timetable: more than half a day, so not a connection we count.