DL 729 then DL 5227 at Atlanta
San Diego → Atlanta → Roanoke
Timetable, Atlanta time
13:31DL 729 from San Diego at the gate
13:23DL 5227 to Roanoke leaves the gate
23 h 52 apart on the timetable, overnight
DL 5227 leaves 23 h 52 after DL 729 arrives on the timetable: more than half a day, so not a connection we count.