AA 4587 then B6 8357 at JFK
Pittsburgh → New York → Richmond
Timetable, New York time
07:49AA 4587 from Pittsburgh at the gate
13:39B6 8357 to Richmond leaves the gate
5 h 50 apart on the timetable
The last days
AA 4587 and B6 8357 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.