CX879Cathay Pacific · SFO → HKG
live · 11m ago
Route confirmed Cathay Pacific

CX879 San FranciscoSFO · 11:25 Hong KongHKG · 18:55

CX879 by Cathay Pacific flies from San Francisco (SFO) to Hong Kong (HKG) for the Sat, Nov 7 departure.

Right nowEn route to Hong Kong · off blocks 11:54 · 29 min late
18:55

estimated arrival at HKG · local time · ~3h 04m from now

En routeCX879 · position estimated
SFOSan FranciscoHKGHong Kong
Estimated from the boardsarr 18:55

Board estimate · gate and arrival times. Off blocks 11:54 · typical taxi-out at SFO ≈ 11.1 min. No receiver coverage over open ocean.

Typical gate push+36 minmedian posted departure
Typical arrival+18 minmedian over 3 operations
Wins back in air~18 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+44+88+132 min
11-07
+29 gate
11-06
−1 gate · +18 arrival
11-05
+132 gate · +103 arrival
11-04
+43 gate · −21 arrival

The bar is how late it left the gate; the ring is where it actually arrived. Board clocks, not estimates.

The route today

live boards
SFOSan FranciscoOn-time likelySFO delay board →
HKGHong KongOn-time likelyHKG delay board →
SFO→HKGevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
54%Chance of 15+ min delay
1.4%Chance of cancellation
+25 minTypical airport delay in this weather

Driven mainly by SFO (San Francisco), currently flying MVFR (marginal visual). These figures come from both airports' records 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 →

Tomorrow at San Francisco

Forecast

Sun 8 Nov, local date

High21°Clikely 20°C to 23°C
Low13°Clikely 12°C to 14°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Hong Kong

Forecast

Mon 9 Nov, local date

High27°Clikely 26°C to 28°C
Low22°Clikely 20°C to 23°C

Forecast: GateWeather · incl. data from ECMWF (CC BY 4.0, modified) · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

When it flies

scheduled departures
061422
M
T
W
T
F
S
S

Each mark is a scheduled departure at its origin-local time. Today is highlighted.

Other San Francisco to Hong Kong flights today

same route · Cathay Pacific
CX2873departs 00:20
CX873departs 22:55

If CX879 is cancelled, these are the other Cathay Pacific nonstop flights from San Francisco to Hong Kong on the same day, with scheduled departure times in SFO local time. Most flights that show a delay still operate. Rebooking usually helps only when that delay is very large. Every airline on this route →

How CX879 actually runs

Pro Flight Search has tracked every published board update for CX879 across the SFO and HKG boards: schedule changes, gate pushes and actual clocks. Usually lands ~18 min late. Based on 3 confirmed landings · 1/3 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 CX879 operates rather than what the timetable promises. Numbers refresh as new flights operate.

Technical record

How this operation is measured

board clocks

Board log

scheduled → actual, per operation
11-07SFO 11:25 11:54 (+29)HKG 18:55
11-06SFO 11:25 11:24 (−1)HKG 18:55 19:13 (+18)
11-05SFO 11:25 13:37 (+132)HKG 18:55 20:38 (+103)
11-04SFO 11:25 12:08 (+43)HKG 18:55 18:34 (−21)

Board clocks recorded as SFO and HKG published them.

Cite this data

Journalists, bloggers, and researchers may cite this page with attribution and a link to Pro Flight Search.

Suggested citation

Pro Flight Search: CX879 San Francisco to Hong Kong on-time performance, measured from the SFO and HKG airport boards.

Canonical URL
https://proflightsearch.com/flight/CX879
How we measure this →