CZ303China Southern Airlines · CAN → LHR
live · 34m ago
Route confirmed China Southern Airlines

CZ303 GuangzhouCAN · 13:50 LondonLHR · 18:35

CZ303 by China Southern Airlines flies from Guangzhou (CAN) to London (LHR) for the Thu, Oct 29 departure.

Right nowCheck-in · gate A171 · as of 11:24
13:50

departs CAN · on schedule

Typical gate push+24 minmedian posted departure
Typical arrival−25 minmedian over 3 operations
Wins back in air~49 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-28
+48 gate · −7 arrival
10-27
+17 gate · −25 arrival
10-26
+13 gate · −31 arrival
10-25
+24 gate

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
CANGuangzhouOn-time likelyCAN delay board →
LHRLondonHigh riskLHR delay board →
CAN→LHRevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
24%Chance of 15+ min delay
2.6%Chance of cancellation
-4 minAvg hub delay right now

Conditions at CAN and LHR are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. For this route and airline, under conditions like today's, over the last 90 days.

Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →

Tomorrow on this route

Forecast

Guangzhou to London with China Southern Airlines · Fri 30 Oct, local date

Outlook: about usual
Chance a departure leaves 60+ min late
1.5%1.4× usual

No cancellation outlook here: this airport's board does not publish cancellations reliably.

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · About 1 departures a day on this route with this airline. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

How CZ303 actually runs

Pro Flight Search has tracked every published board update for CZ303 across the CAN and LHR boards: schedule changes, gate pushes and actual clocks. Usually lands ~25 min early. Based on 3 confirmed landings · 3/3 within 15 min of schedule. Pushes back late but makes up time in the air.

The verdict above is that record speaking, so it reflects how CZ303 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
10-28CAN 13:50 14:38 (+48)LHR 18:35 18:28 (−7)
10-27CAN 13:50 14:07 (+17)LHR 18:35 18:10 (−25)
10-26CAN 13:50 14:03 (+13)LHR 18:35 18:04 (−31)
10-25CAN 13:50 14:14 (+24)LHR

Board clocks recorded as CAN and LHR published them.

Planning around CZ303? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

Cite this data

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Suggested citation

Pro Flight Search — CZ303 Guangzhou to London on-time performance, measured from the CAN and LHR airport boards.

Canonical URL
https://proflightsearch.com/flight/CZ303
How we measure this →