CZ643 China Southern Airlines - Flight Status

Which is the frequency of flight CZ643?
The flight CZ643 is scheduled to flight on daily basis.

Which is the distance of flight CZ643?
The distance between the two airports is 7550 kilometers.

Which is the flight time of flight CZ643?
The scheduled flight time gate to gate is: 09:25 hours.
The real flight time gate to gate on average is: 08:40 hours.

Are the departure airport and arrival airport at the same Time Zone?
No, each airport is in a different timezone. The times shown above, are presented in the local time of each respective airport.
Current Time in Guangzhou: 2025-12-07 08:22:01
Current Time in Melbourne: 2025-12-07 11:22:01

The following airline serve the same route between Guangzhou and Melbourne:
China Southern Airlines - Flight Number: CZ321. (On Time performance: 85 - Average Delay: 7 minutes)

We have gathered data from recent months and present below an analysis of how timely the flights have been.

Delays analyzed by Week: It is not possible to calculate the On-Time Performance for this flight accurately by weekday due to insufficient or non-representative data, as doing so could lead to misleading conclusions
Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from December 13, 2024 to November 28, 2025. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Note: We have excluded some months from the graph, since the quantity and quality of the data is not representative enough.