DL 893 then DL 4991 at Atlanta
Dallas-Fort Worth → Atlanta → Alexandria
Timetable, Atlanta time
10:20DL 893 from Dallas-Fort Worth at the gate
10:10DL 4991 to Alexandria leaves the gate
23 h 50 apart on the timetable, overnight
DL 4991 leaves 23 h 50 after DL 893 arrives on the timetable: more than half a day, so not a connection we count.