DL 418 then DL 4991 at Atlanta
Charlotte → Atlanta → Alexandria
Timetable, Atlanta time
11:11DL 418 from Charlotte at the gate
10:10DL 4991 to Alexandria leaves the gate
22 h 59 apart on the timetable, overnight
DL 4991 leaves 22 h 59 after DL 418 arrives on the timetable: more than half a day, so not a connection we count.