SQ 843 then 9C 8552 at Changi
Chengdu → Singapore → Shanghai
Timetable, Singapore time
22:50SQ 843 from Chengdu at the gate
06:309C 8552 to Shanghai leaves the gate
7 h 40 apart on the timetable, overnight
The last days
SQ 843 and 9C 8552 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.