CA 3542 then CZ 3499 at Guangzhou
Shanghai Pudong → Guangzhou → Kunming
Timetable, Guangzhou time
14:40CA 3542 from Shanghai Pudong at the gate
17:00CZ 3499 to Kunming leaves the gate
2 h 20 apart on the timetable
The last days
CA 3542 and CZ 3499 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.