AA 820 then DL 4991 at Atlanta
Dallas-Fort Worth → Atlanta → Alexandria
Timetable, Atlanta time
10:22AA 820 from Dallas-Fort Worth at the gate
10:10DL 4991 to Alexandria leaves the gate
23 h 48 apart on the timetable, overnight
DL 4991 leaves 23 h 48 after AA 820 arrives on the timetable: more than half a day, so not a connection we count.