AA 4436 then AA 4444 at Boston
Lexington → Boston → New York JFK
Timetable, Boston time
15:53AA 4436 from Lexington at the gate
17:30AA 4444 to New York JFK leaves the gate
1 h 37 apart on the timetable
Boston’s board gives an arrival time for only about 58% of its flights, so many days show no gate time.
The last days
AA 4436 and AA 4444 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.