AA 5510 then DL 2959 at Atlanta
Washington National → Atlanta → Wichita
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
20:12DL 2959 to Wichita leaves the gate
20 h 49 apart on the timetable, overnight
DL 2959 leaves 20 h 49 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.