B6 419 then DL 1892 at Atlanta
New York JFK → Atlanta → Chattanooga
Timetable, Atlanta time
17:32B6 419 from New York JFK at the gate
14:30DL 1892 to Chattanooga leaves the gate
20 h 58 apart on the timetable, overnight
DL 1892 leaves 20 h 58 after B6 419 arrives on the timetable: more than half a day, so not a connection we count.