DL 8843 then AA 4514 at Atlanta
Washington → Atlanta → New York LaGuardia
Timetable, Atlanta time
02:39DL 8843 from Washington at the gate
16:45AA 4514 to New York LaGuardia leaves the gate
14 h 06 apart on the timetable
AA 4514 leaves 14 h 06 after DL 8843 arrives on the timetable: more than half a day, so not a connection we count.