AA 4357 then QR 8149 at JFK
Boston → New York → Atlanta
Timetable, New York time
07:29AA 4357 from Boston at the gate
08:00QR 8149 to Atlanta leaves the gate
31 min apart on the timetable
The last days
AA 4357 and QR 8149 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.