Cathay Pacific
CX811 Flight status
According to Trip.com real-time data, the CX811 flight operated by Cathay Pacific on Aug 20, 2026, scheduled to fly from Boston (BOS) to Hong Kong (HKG), has a change in flight status: the original departure time has been delayed, and the new departure time is 03:10 , with a new arrival time of 05:51 (local time in Hong Kong, UTC+8) . Trip.com will continue to provide the latest updates on this flight.
Wed, Aug 19
Thu, Aug 20
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Arrived
The flight has arrived 36m early
12826km
15h 15m
Check-in Counter
--
Boarding Gate
E12
Arrival Gate
6
Baggage
3
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Delayed
Your flight is about 1h 25m late
12826km
15h 15m
Check-in Counter
--
Boarding Gate
E12
Arrival Gate
--
Baggage
--
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Information provided by VariFlightVariFlight.
For real-time updates, please check airport displays or contact your airline.
CX811 Aircraft Details
According to Trip.com real-time data, the CX811 flight from Boston to Hong Kong on 8/20/2026 is operated using the aircraft model Airbus A350. This aircraft has been in service for 5y, 2m. The aircraft has 334 seats. The average flight distance for this journey is 12,826km.
Airbus A350
Punctuality (Departure)
93
%
Punctuality (Arrival)
97
%
Early on average
17 minutes
Age
5y, 2m
Seats
334
Flight Distance
12,826km
Economy
Premium Economy
Business
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
81 cm
Legroom
46 cm
Seat width
115°
Reclining Angle
3-3-3
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (free)
USB port and power outlet
Seat Information
102 cm
Legroom
51 cm
Seat width
135°
Reclining Angle
2-4-2
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (free)
USB port and power outlet
Seat Information
114 cm
Legroom
51 cm
Seat width
180°
Reclining Angle
Fully reclinable
1-2-1
Seat layout example
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Flight History for CX811
Trip.com historical records show that the last CX811 flight departed on Wed, Aug 19 from BOS at approximately 01:53. This flight is expected to arrrive in HKG at 04:24.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Fri, Aug 14 | Boston (BOS) | Hong Kong (HKG) | 351 | 01:56 | 05:01 | Arrived |
| Sat, Aug 15 | Boston (BOS) | Hong Kong (HKG) | 351 | 01:55 | 04:50 | Arrived |
| Sun, Aug 16 | Boston (BOS) | Hong Kong (HKG) | 351 | 01:52 | 04:36 | Arrived |
| Mon, Aug 17 | Boston (BOS) | Hong Kong (HKG) | 359 | 01:50 | 04:30 | Arrived |
| Tue, Aug 18 | Boston (BOS) | Hong Kong (HKG) | 351 | 01:49 | 04:18 | Arrived |
| Wed, Aug 19 | Boston (BOS) | Hong Kong (HKG) | 351 | 01:53 | 04:24 | Arrived |
| Thu, Aug 20 | Boston (BOS) | Hong Kong (HKG) | 351 | 03:10 | 05:51 | Delayed |
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CX811 On-Time Performance
Based on the average performance of this flight over the last 30 trips, the on-time departure rate of CX811 is 93% (Late on average 16 minutes), and the on-time arrival rate is 97% (Early on average 17 minutes).
On-Time Departures
Punctuality
93
%
Late on average
16 minutes
Early
0
%
On time
93
%
30 mins late
3
%
60 mins late
0
%
90 mins late
3
%
Cancelled
1
%
On-Time Arrivals
Punctuality
97
%
Early on average
17 minutes
Early
77
%
On time
20
%
30 mins late
0
%
60 mins late
3
%
90 mins late
0
%
Cancelled
1
%
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Flight FAQs
-
What is the current status of flight cx811?
Flight cx811 is delayed by about 85 minutes (status: Delayed). Latest estimated departure/arrival: 03:10 / 05:51 (updated Aug 20, 2026). -
Is flight cx811 on time today?
Flight cx811 is delayed by about 85 minutes (status: Delayed). The latest estimated departure/arrival times are 03:10 / 05:51. Watch for gate changes. -
Has flight cx811 departed yet? What is the departure time?
Flight cx811 is scheduled to depart at 01:45. The latest actual or estimated departure time is 03:10, and the current status is Delayed (updated Aug 20, 2026). -
When is flight cx811 scheduled to arrive?
Flight cx811 is scheduled to arrive at 05:00. The latest estimated or actual arrival time is 05:51. Status is Delayed as of Aug 20, 2026. -
What is the gate information for flight cx811?
For flight cx811, the departure terminal is E and the boarding gate is E12. Gate assignments can change at short notice—confirm on airport screens before heading to security. -
What route does flight cx811 fly?
Flight cx811 is operated by Cathay Pacific from Boston (BOS) to Hong Kong (HKG). Typical flight time is about 15 hours 15 minutes; operating days may include Thursday. -
How can I check real-time status for flight cx811?
Track flight cx811 on this Trip.com status page for live departure, arrival, gate and baggage updates. For push alerts on the go, open the same flight in the Trip.com App and turn on flight notifications. -
If flight cx811 is delayed or canceled, what should I do?
If cx811 is delayed or canceled, first confirm the latest status here (Delayed, updated Aug 20, 2026). Contact Cathay Pacific or your booking channel for rebooking or refund options, and check Trip.com Manage Booking if you booked on Trip.com. -
Has flight cx811 departed from Boston?
Flight cx811 has not left Boston (BOS) yet and is delayed by about 85 minutes. Latest estimated departure: 03:10. -
What is the seat configuration for flight cx811?
Flight cx811 usually flies a Airbus A350 with seat layout 334. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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Arrival Info: Hong Kong Weather & Current Time
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12 hour time difference
Time on arrival: Boston 17:51
|
Hong Kong 05:51
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