DL 26 then DL 5258 at Atlanta
Seoul → Atlanta → Jackson (Mississippi)
Timetable, Atlanta time
18:55DL 26 from Seoul at the gate
18:00DL 5258 to Jackson (Mississippi) leaves the gate
23 h 05 apart on the timetable, overnight
DL 5258 leaves 23 h 05 after DL 26 arrives on the timetable: more than half a day, so not a connection we count.