DL 2157 then DL 5227 at Atlanta
Charlotte → Atlanta → Roanoke
Timetable, Atlanta time
15:35DL 2157 from Charlotte at the gate
13:23DL 5227 to Roanoke leaves the gate
21 h 48 apart on the timetable, overnight
DL 5227 leaves 21 h 48 after DL 2157 arrives on the timetable: more than half a day, so not a connection we count.