CZ3621 ShenzhenSZX · 09:20 ChengduTFU · 11:55
CZ3621 by China Southern Airlines flies from Shenzhen (SZX) to Chengdu (TFU).
scheduled from SZX
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 operation0 cancelled · 9 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SZX and TFU 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 Shenzhen to Chengdu flights today
same route · China Southern AirlinesIf CZ3621 is cancelled, these are the other China Southern Airlines nonstop flights from Shenzhen to Chengdu on the same day, with scheduled departure times in SZX local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How CZ3621 actually runs
Pro Flight Search has tracked every published board update for CZ3621 across the SZX and TFU boards: schedule changes, gate pushes and actual clocks. Usually departs ~18 min late. Based on 9 confirmed departures · 3/9 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how CZ3621 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-6979, B-6913, B-32GE, B-6976.
Board clocks recorded as SZX and TFU published them.
Planning around CZ3621? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — CZ3621 Shenzhen to Chengdu on-time performance, measured from the SZX and TFU airport boards.
https://proflightsearch.com/flight/CZ3621
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