DL 2779 then DL 5227 at Atlanta
Boston → Atlanta → Roanoke
Timetable, Atlanta time
15:10DL 2779 from Boston at the gate
13:23DL 5227 to Roanoke leaves the gate
22 h 13 apart on the timetable, overnight
DL 5227 leaves 22 h 13 after DL 2779 arrives on the timetable: more than half a day, so not a connection we count.