CZ3456 ChongqingCKG · 16:50 ShenzhenSZX · 18:55
CZ3456 by China Southern Airlines flies from Chongqing (CKG) to Shenzhen (SZX) for the Tue, Sep 15 departure.
arrived at SZX · 21 min early
Where the minutes go
last 7 operations · gate push → arrivalThe bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.
The last 30 days
arrival outcome per operationmedian arrival −19 min · 0 cancelled · 14 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at CKG and SZX 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. This route's tracked sample is still thin — treat these as an early read, not a precise forecast.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Chongqing to Shenzhen flights today
same route · China Southern AirlinesIf CZ3456 is cancelled, these are the other China Southern Airlines nonstop flights from Chongqing to Shenzhen on the same day, with scheduled departure times in CKG local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How CZ3456 actually runs
Pro Flight Search has tracked every published board update for CZ3456 across the CKG and SZX boards: schedule changes, gate pushes and actual clocks. Usually lands ~16 min early. Based on 11 confirmed landings · 10/11 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how CZ3456 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationAircraft
Recent tails: B-6659, B-6976, B-6687, B-1806.
Board clocks recorded as CKG and SZX published them.
Planning around CZ3456? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — CZ3456 Chongqing to Shenzhen on-time performance, measured from the CKG and SZX airport boards.
https://proflightsearch.com/flight/CZ3456
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