JS 151 then KE 856 at Beijing
Pyongyang → Beijing → Seoul Incheon
Timetable, Beijing time
09:55JS 151 from Pyongyang at the gate
14:15KE 856 to Seoul Incheon leaves the gate
4 h 20 apart on the timetable
The last days
JS 151 and KE 856 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.