CX812Cathay Pacific · HKG → BOS
live · 13m 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 Fri, Aug 21 departure.

Right nowScheduled · today
19:10

departs HKG · on schedule

Typical gate push+6 minmedian posted departure
Typical arrival+3 minmedian over 12 operations
Wins back in air~3 minmedian gate push vs arrival · how planes make up time → Cancellation0 in 14tracked operations · cancellation odds calculator →

Where the minutes go

last 7 operations · gate push → arrival
0+45+91+136 min
08-21
+20 arrival
08-20
+7 gate
08-19
+126 gate · +136 arrival
08-18
+3 gate · −6 arrival
08-17
−4 gate · −9 arrival
08-16
+20 gate · −17 arrival
08-15
−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

median arrival +3 min · 0 cancelled · 14 operations tracked

The route today

live boards
HKGHong KongOn-time likelyHKG delay board →
BOSBostonOn-time likelyBOS 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
55%Chance of 15+ min delay
8.9%Chance of cancellation
+22 minAvg hub delay right now

Driven mainly by HKG (Hong Kong), currently flying IFR (instrument). 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. Usually lands on time. Based on 12 confirmed landings · 7/12 within 15 min of schedule.

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 clocksaircraft

Board log

scheduled → actual, per operation
08-21HKG 19:10BOS 23:05 23:25 (+20)
08-20HKG 19:10 19:17 (+7)BOS
08-19HKG 19:10 21:16 (+126)BOS 23:05 01:21 (+136)
08-18HKG 19:10 19:13 (+3)BOS 23:05 22:59 (−6)
08-17HKG 19:10 19:06 (−4)BOS 23:05 22:56 (−9)
08-16HKG 19:10 19:30 (+20)BOS 23:05 22:48 (−17)
08-15HKG 19:10 19:09 (−1)BOS 23:05
08-14HKG 19:10 19:20 (+10)BOS 23:05 23:25 (+20)
08-13HKG 19:10 19:14 (+4)BOS 23:05 23:08 (+3)
08-12HKG 19:10 19:16 (+6)BOS 23:05 23:19 (+14)
08-11HKG 19:10 19:16 (+6)BOS 23:05 22:49 (−16)
08-10HKG 19:10 19:09 (−1)BOS 23:05 22:39 (−26)
08-09HKG 19:10 19:16 (+6)BOS 23:05 22:37 (−28)
08-08HKG BOS 23:05 23:50 (+45)

Aircraft

Recent tails: B-LXN, B-LXG, B-LXE, B-LRO.

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 →