CA 790 then CA 1919 at Beijing
Riyadh → Beijing → Haikou
Timetable, Beijing time
12:25CA 790 from Riyadh at the gate
17:15CA 1919 to Haikou leaves the gate
4 h 50 apart on the timetable
The last days
CA 790 and CA 1919 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.