DL 570 then DL 5227 at Atlanta
San Francisco → Atlanta → Roanoke
Timetable, Atlanta time
13:32DL 570 from San Francisco at the gate
13:23DL 5227 to Roanoke leaves the gate
23 h 51 apart on the timetable, overnight
DL 5227 leaves 23 h 51 after DL 570 arrives on the timetable: more than half a day, so not a connection we count.