CX873 San FranciscoSFO · 01:20 Hong KongHKG · 06:15
CX873 by Cathay Pacific flies from San Francisco (SFO) to Hong Kong (HKG) for the Mon, Aug 17 departure.
estimated arrival at HKG · local time · ~2h 48m from now
position updated 5m ago · checking again in 90s
Live position · flown path, last 1h 9m
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 −19 min · 0 cancelled · 15 operations tracked
The route today
live boardsWeather lens
Delay & cancellation outlook for this flight
Measured, 90-day sampleConditions at SFO 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 San Francisco to Hong Kong flights today
same route · Cathay PacificIf CX873 is cancelled, this is the other Cathay Pacific nonstop flight from San Francisco to Hong Kong on the same day, with scheduled departure times in SFO local time. Most flights posting a delay still operate — rebooking usually only beats a very large posted delay. Every airline on this route →
How CX873 actually runs
Pro Flight Search has tracked every published board update for CX873 across the SFO and HKG boards: schedule changes, gate pushes and actual clocks. Usually lands ~26 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 CX873 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 SFO and HKG published them.
Planning around CX873? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure
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Pro Flight Search — CX873 San Francisco to Hong Kong on-time performance, measured from the SFO and HKG airport boards.
https://proflightsearch.com/flight/CX873
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