CA 792 then KE 856 at Beijing
Xi'an → Beijing → Seoul Incheon
Timetable, Beijing time
10:40CA 792 from Xi'an at the gate
14:15KE 856 to Seoul Incheon leaves the gate
3 h 35 apart on the timetable
The last days
CA 792 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.