DL 1668 then AA 5510 at Atlanta
Indianapolis → Atlanta → Washington National
Timetable, Atlanta time
21:54DL 1668 from Indianapolis at the gate
20:17AA 5510 to Washington National leaves the gate
22 h 23 apart on the timetable, overnight
AA 5510 leaves 22 h 23 after DL 1668 arrives on the timetable: more than half a day, so not a connection we count.