DL 177 then DL 5227 at Atlanta
Dublin → Atlanta → Roanoke
Timetable, Atlanta time
13:29DL 177 from Dublin at the gate
13:23DL 5227 to Roanoke leaves the gate
23 h 54 apart on the timetable, overnight
DL 5227 leaves 23 h 54 after DL 177 arrives on the timetable: more than half a day, so not a connection we count.