KE 35 then DL 4628 at Atlanta
Seoul → Atlanta → Roanoke
Timetable, Atlanta time
10:05KE 35 from Seoul at the gate
08:58DL 4628 to Roanoke leaves the gate
22 h 53 apart on the timetable, overnight
DL 4628 leaves 22 h 53 after KE 35 arrives on the timetable: more than half a day, so not a connection we count.