CX812Cathay Pacific · HKG → BOS
live · 18m ago
Route confirmed Cathay Pacific

CX812 Hong KongHKG · 19:10 BostonBOS · 23:05

CX812 by Cathay Pacific flies from Hong Kong (HKG) to Boston (BOS) for the Tue, Oct 13 departure.

Right nowBoarding Soon · today
19:10

departs HKG · on schedule

Typical gate push+3 minmedian posted departure
Typical arrival−24 minmedian over 4 operations
Wins back in air~27 minmedian gate push vs arrival · how planes make up time →

Where the minutes go

last 4 operations · gate push → arrival
0+30+60+90 min
10-13
−24 arrival
10-12
+4 gate · −24 arrival
10-11
+2 gate · −57 arrival
10-10
+3 gate · −24 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
HKGHong KongOn-time likelyHKG delay board →
BOSBostonHigh riskBOS delay board →
HKG→BOSevery carrier, schedules and on-time historyRoute intelligence →

Weather lens

Weather-conditioned outlook for this flight right now

Measured, 90-day sample
49%Chance of 15+ min delay
4.8%Chance of cancellation
+19 minAvg hub delay right now

Driven mainly by BOS (Boston), currently flying MVFR (marginal visual). 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 departures
061422
M
T
W
T
F
S
S

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

How CX812 actually runs

Pro Flight Search has tracked every published board update for CX812 across the HKG and BOS boards: schedule changes, gate pushes and actual clocks. Early read — pattern not clear yet. Only 2 completed legs so far: left right on schedule but landed about 24 min early. Not enough to call it.

The verdict above is that record speaking, so it reflects how CX812 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
10-13HKG 19:10BOS 23:05 22:41 (−24)
10-12HKG 19:10 19:14 (+4)BOS 23:05 22:41 (−24)
10-11HKG 19:10 19:12 (+2)BOS 23:05 22:08 (−57)
10-10HKG 19:10 19:13 (+3)BOS 23:05 22:41 (−24)

Board clocks recorded as HKG and BOS published them.

Planning around CX812? 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 — CX812 Hong Kong to Boston on-time performance, measured from the HKG and BOS airport boards.

Canonical URL
https://proflightsearch.com/flight/CX812
How we measure this →