AA 4557 then DL 2269 at Atlanta
New York LaGuardia → Atlanta → Cincinnati
Timetable, Atlanta time
09:09AA 4557 from New York LaGuardia at the gate
21:20DL 2269 to Cincinnati leaves the gate
12 h 11 apart on the timetable
DL 2269 leaves 12 h 11 after AA 4557 arrives on the timetable: more than half a day, so not a connection we count.