DL 9941 then AA 4800 at Atlanta
Queretaro → Atlanta → Washington National
Timetable, Atlanta time
19:43DL 9941 from Queretaro at the gate
17:01AA 4800 to Washington National leaves the gate
21 h 18 apart on the timetable, overnight
AA 4800 leaves 21 h 18 after DL 9941 arrives on the timetable: more than half a day, so not a connection we count.