CX427 SeoulICN · 01:55 Hong KongHKG · 04:45
CX427 by Cathay Pacific flies from Seoul (ICN) to Hong Kong (HKG) for the Thu, Sep 10 departure.
estimated arrival at HKG · local time · ~2h 15m from now
board checked 5m ago · checking again in 45s
Board estimate · gate and arrival times. Off blocks 02:05 · typical taxi-out at ICN ≈ 5.2 min.
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 −31 min · 0 cancelled · 16 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Early read, sample still buildingConditions at ICN and HKG 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 Seoul to Hong Kong flights today
same route · Cathay PacificIf CX427 is cancelled, these are the other Cathay Pacific nonstop flights from Seoul to Hong Kong on the same day, with scheduled departure times in ICN local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How CX427 actually runs
Pro Flight Search has tracked every published board update for CX427 across the ICN and HKG boards: schedule changes, gate pushes and actual clocks. Usually lands ~31 min early. Based on 13 confirmed landings · 13/13 within 15 min of schedule. Pushes back late but makes up time in the air.
The verdict above is that record speaking, so it reflects how CX427 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 ICN and HKG published them.
Planning around CX427? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — CX427 Seoul to Hong Kong on-time performance, measured from the ICN and HKG airport boards.
https://proflightsearch.com/flight/CX427
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