DL 789 then DL 2257 at Atlanta
Charleston (South Carolina) → Atlanta → Birmingham (Alabama)
Timetable, Atlanta time
09:20DL 789 from Charleston (South Carolina) at the gate
21:34DL 2257 to Birmingham (Alabama) leaves the gate
12 h 14 apart on the timetable
DL 2257 leaves 12 h 14 after DL 789 arrives on the timetable: more than half a day, so not a connection we count.