CZ8257 HaikouHAK ShanghaiPVG · 22:55
CZ8257 by China Southern Airlines flies from Haikou (HAK) to Shanghai (PVG).
tracked route HAK → PVG
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 −33 min · 0 cancelled · 9 operations tracked
The route today
live boardsHow CZ8257 actually runs
Pro Flight Search has tracked every published board update for CZ8257 across the HAK and PVG boards: schedule changes, gate pushes and actual clocks. Usually lands ~33 min early. Based on 9 confirmed landings · 9/9 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how CZ8257 operates rather than what the timetable promises. Numbers refresh as new flights operate.
How this operation is measured
Board log
scheduled → actual, per operationBoard clocks recorded as HAK and PVG published them.
Planning around CZ8257? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — CZ8257 Haikou to Shanghai on-time performance, measured from the HAK and PVG airport boards.
https://proflightsearch.com/flight/CZ8257
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