CX138 SydneySYD · 21:55 Hong KongHKG · 05:10
CX138 by Cathay Pacific flies from Sydney (SYD) to Hong Kong (HKG) for the Thu, Sep 10 departure.
arrived at HKG · 2 min late
Where the minutes go
last 5 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 · 5 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SYD 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.
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 Sydney to Hong Kong flights today
same route · Cathay PacificIf CX138 is cancelled, these are the other Cathay Pacific nonstop flights from Sydney to Hong Kong on the same day, with scheduled departure times in SYD local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How CX138 actually runs
Pro Flight Search has tracked every published board update for CX138 across the SYD and HKG boards: schedule changes, gate pushes and actual clocks. Usually lands on time. Based on 5 confirmed landings · 5/5 within 15 min of schedule.
The verdict above is that record speaking, so it reflects how CX138 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 SYD and HKG published them.
Planning around CX138? 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 — CX138 Sydney to Hong Kong on-time performance, measured from the SYD and HKG airport boards.
https://proflightsearch.com/flight/CX138
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