DL 360 then DL 1892 at Atlanta
Washington National → Atlanta → Chattanooga
Timetable, Atlanta time
17:55DL 360 from Washington National at the gate
14:30DL 1892 to Chattanooga leaves the gate
20 h 35 apart on the timetable, overnight
DL 1892 leaves 20 h 35 after DL 360 arrives on the timetable: more than half a day, so not a connection we count.