DL 4993 then AA 4689 at Atlanta
Valdosta → Atlanta → Washington National
Timetable, Atlanta time
20:23DL 4993 from Valdosta at the gate
20:15AA 4689 to Washington National leaves the gate
23 h 52 apart on the timetable, overnight
AA 4689 leaves 23 h 52 after DL 4993 arrives on the timetable: more than half a day, so not a connection we count.