KN5851 BeijingPKX ShenzhenSZX
KN5851 by China United Airlines flies from Beijing (PKX) to Shenzhen (SZX).
scheduled from PKX
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at PKX 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 Beijing to Shenzhen flights today
same route · China United AirlinesIf KN5851 is cancelled, this is the other China United Airlines nonstop flight from Beijing to Shenzhen on the same day, with scheduled departure times in PKX local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How KN5851 actually runs
Pro Flight Search has tracked every published board update for KN5851 across the PKX and SZX boards: schedule changes, gate pushes and actual clocks. Combined risk score: 62.2/100. Based on airport operations, weather, and cached board history at PKX and SZX.
The verdict above is that record speaking, so it reflects how KN5851 operates rather than what the timetable promises. Numbers refresh as new flights operate.
Planning around KN5851? 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 — KN5851 Beijing to Shenzhen on-time performance, measured from the PKX and SZX airport boards.
https://proflightsearch.com/flight/KN5851
.