F9 4405 then DL 5258 at Atlanta
Miami → Atlanta → Jackson (Mississippi)
Timetable, Atlanta time
18:30F9 4405 from Miami at the gate
18:00DL 5258 to Jackson (Mississippi) leaves the gate
23 h 30 apart on the timetable, overnight
DL 5258 leaves 23 h 30 after F9 4405 arrives on the timetable: more than half a day, so not a connection we count.