DL 515 then DL 5227 at Atlanta
Los Angeles → Atlanta → Roanoke
Timetable, Atlanta time
14:13DL 515 from Los Angeles at the gate
13:23DL 5227 to Roanoke leaves the gate
23 h 10 apart on the timetable, overnight
DL 5227 leaves 23 h 10 after DL 515 arrives on the timetable: more than half a day, so not a connection we count.