DL 1007 then DL 4925 at Atlanta
Washington National → Atlanta → Chattanooga
Timetable, Atlanta time
21:41DL 1007 from Washington National at the gate
13:14DL 4925 to Chattanooga leaves the gate
15 h 33 apart on the timetable, overnight
DL 4925 leaves 15 h 33 after DL 1007 arrives on the timetable: more than half a day, so not a connection we count.