AA 2887 then AA 3076 at Miami
Cleveland → Miami → New York LaGuardia
Timetable, Miami time
08:53AA 2887 from Cleveland at the gate
15:21AA 3076 to New York LaGuardia leaves the gate
6 h 28 apart on the timetable
The last days
AA 2887 and AA 3076 weren’t both flown 15 min to 12 h apart in the last 21 days.
Statistics from past flights, not live flight information. Always check times and your connection with your airline, and don’t base travel or booking decisions on these numbers.