DL 6702 then B6 8357 at JFK
Riyadh → New York → Richmond
Timetable, New York time
09:00DL 6702 from Riyadh at the gate
13:39B6 8357 to Richmond leaves the gate
4 h 39 apart on the timetable
The last days
DL 6702 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.