BA 227 then DL 5258 at Atlanta
London → Atlanta → Jackson (Mississippi)
Timetable, Atlanta time
20:15BA 227 from London at the gate
18:00DL 5258 to Jackson (Mississippi) leaves the gate
21 h 45 apart on the timetable, overnight
DL 5258 leaves 21 h 45 after BA 227 arrives on the timetable: more than half a day, so not a connection we count.