CZ5257 ShenzhenSZX · 07:15 KunmingKMG · 09:45
CZ5257 by China Southern Airlines flies from Shenzhen (SZX) to Kunming (KMG) for the Fri, Nov 6 departure.
arrival expected at KMG · on schedule
board checked 378m ago · checking again in 45s
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 · 12 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at SZX and KMG are near their clear-air norm right now, so this reflects the route's recent baseline rather than a weather penalty. These figures come from both airports' records under conditions like today's, over the last 90 days. This route has few tracked flights so far, so treat this as an early read.
Pro Flight Search tracking, 90 days · the weather × delay correlation study → · live weather risk by airport →
Tomorrow at Shenzhen
ForecastSat 7 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
Tomorrow at Kunming
ForecastSat 7 Nov, local date
Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.
When it flies
scheduled departuresEach mark is a scheduled departure at its origin-local time. Today is highlighted.
Other Shenzhen to Kunming flights today
same route · China Southern AirlinesIf CZ5257 is cancelled, these are the other China Southern Airlines nonstop flights from Shenzhen to Kunming on the same day, with scheduled departure times in SZX local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →
How CZ5257 actually runs
Pro Flight Search has tracked every published board update for CZ5257 across the SZX and KMG boards: schedule changes, gate pushes and actual clocks. Usually departs ~10 min late. Based on 12 confirmed departures · 9/12 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how CZ5257 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-30EZ, B-1696, B-32FV, B-1690.
Board clocks recorded as SZX and KMG published them.
Planning around CZ5257? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.
Pro Flight Search: CZ5257 Shenzhen to Kunming on-time performance, measured from the SZX and KMG airport boards.
https://proflightsearch.com/flight/CZ5257
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