DL 4920 then DL 2398 at Atlanta
Roanoke → Atlanta → New York JFK
Timetable, Atlanta time
20:14DL 4920 from Roanoke at the gate
15:16DL 2398 to New York JFK leaves the gate
19 h 02 apart on the timetable, overnight
DL 2398 leaves 19 h 02 after DL 4920 arrives on the timetable: more than half a day, so not a connection we count.