CX852Cathay Pacific · HKG → SEA
live · 15m ago
Route confirmed Cathay Pacific

CX852 Hong KongHKG · 13:05 SeattleSEA · 09:45

CX852 by Cathay Pacific flies from Hong Kong (HKG) to Seattle (SEA) for the Thu, Oct 29 departure.

Right nowBoarding Soon · today
13:05

departs HKG · on schedule

Typical gate push+3 minmedian posted departure

Where the minutes go

last 7 operations · gate push → arrival
0+30+60+90 min
10-28
+0 gate
10-27
+3 gate
10-26
−5 gate
10-24
+19 gate
10-22
+53 gate
10-21
+3 gate
10-20
+1 gate

The 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 operation

0 cancelled · 7 operations tracked

The route today

live boards
HKGHong KongOn-time likelyHKG delay board →
SEASeattleModerate riskSEA delay board →
HKG→SEAevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Delay & cancellation outlook for this flight

Measured, 90-day sample
34%Chance of 15+ min delay
1.4%Chance of cancellation
+1 minAvg hub delay right now

Conditions at HKG and SEA 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 →

Tomorrow at Hong Kong

Forecast

Fri 30 Oct, local date

High30°Clikely 29°C to 31°C
Low25°Clikely 24°C to 26°C
Outlook: about usual
Chance a departure is cancelled
0.4%usually 0.6%
Chance a departure leaves 60+ min late
3.7%usually 4.0%

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 440 departures a day. · Expected values for tomorrow from a forecast model, kept apart from today's measured figures.

Tomorrow at Seattle

Forecast

Thu 29 Oct, local date

High11°Clikely 10°C to 12°C
Low6°Clikely 5°C to 7°C
  • 95% chance of rain
Outlook: about usual
Chance a departure is cancelled
0.5%usually 0.7%
Chance a departure leaves 60+ min late
10%usually 9.9%

Weather behind it: 95% chance of rain at Seattle; 89% chance of rain at Anchorage, where 5% of departures go

Forecast: WeatherTomorrow · incl. data from ECMWF (CC BY 4.0, modified) · Based on about 360 departures a day. · 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.

How CX852 actually runs

Pro Flight Search has tracked every published board update for CX852 across the HKG and SEA boards: schedule changes, gate pushes and actual clocks. Usually departs on time. Based on 7 confirmed departures · 5/7 within 15 min of schedule.

The verdict above is that record speaking, so it reflects how CX852 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
10-28HKG 13:05 (+0)SEA 09:45
10-27HKG 13:05 13:08 (+3)SEA 09:45
10-26HKG 13:05 13:00 (−5)SEA 09:45
10-24HKG 13:25 13:44 (+19)SEA 10:05
10-22HKG 13:25 14:18 (+53)SEA 10:05
10-21HKG 13:25 13:28 (+3)SEA 10:05
10-20HKG 13:25 13:26 (+1)SEA 10:05

Board clocks recorded as HKG and SEA published them.

Planning around CX852? Will a delayed flight be cancelled? · Do planes make up time in the air? · How we measure

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 — CX852 Hong Kong to Seattle on-time performance, measured from the HKG and SEA airport boards.

Canonical URL
https://proflightsearch.com/flight/CX852
How we measure this →