AA 5510 then DL 2213 at Atlanta
Washington National → Atlanta → Lexington
Timetable, Atlanta time
23:23AA 5510 from Washington National at the gate
21:39DL 2213 to Lexington leaves the gate
22 h 16 apart on the timetable, overnight
DL 2213 leaves 22 h 16 after AA 5510 arrives on the timetable: more than half a day, so not a connection we count.