CX255 Hong KongHKG · 23:15 LondonLHR · 06:20
CX255 by Cathay Pacific flies from Hong Kong (HKG) to London (LHR) for the Wed, Sep 23 departure.
arrived at LHR · 2 min early
⚖ CX255 typically leaves +10 and lands −2. The air wins minutes back.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 −2 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at HKG and LHR 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.
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 Hong Kong to London flights today
same route · Cathay PacificIf CX255 is cancelled, these are the other Cathay Pacific nonstop flights from Hong Kong to London on the same day, with scheduled departure times in HKG local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How CX255 actually runs
Pro Flight Search has tracked every published board update for CX255 across the HKG and LHR boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 14 confirmed landings · 13/14 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how CX255 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 HKG and LHR published them.
Planning around CX255? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — CX255 Hong Kong to London on-time performance, measured from the HKG and LHR airport boards.
https://proflightsearch.com/flight/CX255
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