AA 4466 then AA 4721 at Boston
New York LaGuardia → Boston → New York JFK
Timetable, Boston time
07:12AA 4466 from New York LaGuardia at the gate
17:28AA 4721 to New York JFK leaves the gate
10 h 16 apart on the timetable
The last days
AA 4466 and AA 4721 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.