DL 5175 then DL 325 at Atlanta
Chattanooga → Atlanta → Washington National
Timetable, Atlanta time
20:35DL 5175 from Chattanooga at the gate
19:59DL 325 to Washington National leaves the gate
23 h 24 apart on the timetable, overnight
DL 325 leaves 23 h 24 after DL 5175 arrives on the timetable: more than half a day, so not a connection we count.