Informational Guide to London Heathrow Airport - LHR - Non Official

CZ303 China Southern Airlines - Flight Status

Below, you can find details about China Southern Airlines flight CZ303, which currently operates between the airports of Guangzhou - Guangzhou Baiyun International Airport (Airport Code CAN) and London - London Heathrow Airport (Airport Code LHR).
This flight data pertains specifically to the flight's details for Saturday, March 14, 2026.

CZ303 On Time performance:
90
We have calculated the percentage of flights that arrived within 15 minutes of their scheduled time, or earlier, based on real flight data from the last 3 months. More about punctuality and delays

Flight Status

CZ303 China Southern Airlines from Guangzhou

En Route - On-time
Flight Status for Saturday March 14, 2026
This flight was also scheduled for Yesterday (March 13, 2026). See it here
This flight is also scheduled for Tomorrow (March 15, 2026). See it here

Airline information

China Southern Airlines
China Southern Airlines
Equipment: Boeing 777-300ER

Departure

Guangzhou (CAN)
March 14, 2026
Guangzhou Baiyun International Airport
Departed at:
13:57
Terminal:
2
Gate:
A167
Scheduled Departure Time: 13:40

Arrival

London (LHR)
March 14, 2026
London Heathrow Airport
Estimated Arrival Time:
18:22
Terminal:
4
Gate:
-
Scheduled Arrival Time: 18:35
Disclaimer
The information displayed on this website is gathered from third-party providers with a wide reputation on the sector, which in turn obtain the information from the airlines. This data is provided only for informative purposes. www.airport-london-heathrow.com assumes no responsibility for loss or damage as a result of relying on information posted here. Please contact your airline to verify flight status.

Additional Information

Which is the frequency of flight CZ303?
The flight CZ303 is scheduled to flight on daily basis.

Which is the distance of flight CZ303?
The distance between the two airports is 9498 kilometers.

Which is the flight time of flight CZ303?
The scheduled flight time gate to gate is: 12:55 hours.
The real flight time gate to gate on average is: 12:18 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: 2026-03-14 18:06:07
Current Time in London: 2026-03-14 10:06:07

Alternative Flights

The following airline serve the same route between Guangzhou and London:
China Southern Airlines - Flight Number: CZ8103. (On Time performance: 100 - Average Delay: 0 minutes)

Punctuality and delays

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

In terms of On-Time Performance, by analyzing the flight data from the last three months, spanning from December 05, 2025 to March 04, 2026, we have obtained these figures.
Total number of flights: 90
On Time: 81 ( 90 % )
Moderate Delay: 6 ( 7 % )
Significant Delay: 1 ( 1 % )
Major Delay: 2 ( 2 % )
Canceled: 0 ( 0 % )
Diverted: 0 ( 0 % )

Average Delay: 6 minutes.
Delays analyzed by Weekday: We have gathered available data from last six months, spanning from September 05, 2025 to March 04, 2026. Next, you can observe the results broken down by day of the week: number of flights analyzed, on-time performance per day, and average delay per day.

Delays analyzed by Month: We have gathered available data from last twelve closed months, spanning from March 02, 2025 to February 28, 2026. Next, you can observe the results broken down by month: number of flights analyzed, on-time performance per month, and average delay per month.

Last Past Flights CZ303

Date
Departure
Arrival
Duration
Aircraft
Status
Friday
13 March
14:05
Guangzhou (CAN)
18:12
London (LHR)
12h 07min
Boeing 777-300
Boeing 777-300
Landed - On-time
Thursday
12 March
14:14
Guangzhou (CAN)
18:56
London (LHR)
12h 42min
Boeing 777-300
Boeing 777-300
Landed - Delayed
Wednesday
11 March
13:54
Guangzhou (CAN)
18:46
London (LHR)
12h 52min
Boeing 777-300
Boeing 777-300
Landed - On-time
Tuesday
10 March
13:50
Guangzhou (CAN)
18:27
London (LHR)
12h 37min
Boeing 787-9
Boeing 787-9
Landed - On-time
Monday
09 March
13:57
Guangzhou (CAN)
18:12
London (LHR)
12h 15min
Boeing 787-9
Boeing 787-9
Landed - On-time
Sunday
08 March
13:51
Guangzhou (CAN)
17:57
London (LHR)
12h 06min
Boeing 787-9
Boeing 787-9
Landed - On-time
Saturday
07 March
13:59
Guangzhou (CAN)
18:01
London (LHR)
12h 02min
Boeing 787-9
Boeing 787-9
Landed - On-time
Friday
06 March
13:56
Guangzhou (CAN)
18:11
London (LHR)
12h 15min
Boeing 787-9
Boeing 787-9
Landed - On-time
Thursday
05 March
13:49
Guangzhou (CAN)
17:54
London (LHR)
12h 05min
Boeing 787-9
Boeing 787-9
Landed - On-time
Wednesday
04 March
14:02
Guangzhou (CAN)
18:13
London (LHR)
12h 11min
Boeing 787-9
Boeing 787-9
Landed - On-time