AA 504 then DL 5741 at Charlotte
Boston → Charlotte → New York JFK
Timetable, Charlotte time
13:54AA 504 from Boston at the gate
14:30DL 5741 to New York JFK leaves the gate
36 min apart on the timetable
The last days
AA 504 and DL 5741 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.