How long is the CX811 flight from Boston to Hong Kong?

The timetable allows 15 h 30 min. Boston to Hong Kong is 12,806 km (7,957 mi).

Which terminal does CX811 use?

It usually leaves from Terminal E, gate E12 at Boston Logan International Airport (BOS) and arrives at Terminal 1 at Hong Kong International Airport (HKG). Check the flight card above for today's terminal and gate.

What other flight numbers does CX811 have?

Also listed as CPA811 (Cathay Pacific's ICAO code) and CX 811.

CX811 Flight Status Cathay Pacific: Boston to Hong Kong (CPA811)

Cathay Pacific CX 811

En-Route, Arriving in 10h14'

BOS Boston

Scheduled: 00:30
Actual: 00:38

Terminal: E | Gate: E12

Departure: Sat, Nov 14, 2026 · local time EST

Boston Logan International Airport (BOS)

All BOS Departures >

HKG Hong Kong

Scheduled: 05:00
Estimated: 04:31
Delay

Terminal: 1

Arrival: Sun, Nov 15, 2026 · local time UTC+8

Hong Kong International Airport (HKG)

All HKG Arrivals >

Departed 4h 38m ago · lands in 10h 14m 31%

BOS 00:38 HKG 04:31 ⁺¹

3,987 km (2,478 mi) flown · 8,818 km (5,479 mi) to go

Estimated position based on departure and arrival times, not live tracking. Times are local at each airport.

Add to calendar

Distance: 12806 km / 7957 miles · Scheduled Duration: 15:30 · Typical Duration: 14:55

CX 811 Flight Status & Schedule Cathay Pacific Boston to Hong Kong

Date	From	To	Departure	Arrival	Status	Details
Nov 14	BOS	HKG	00:38	04:31	En-Route	Track >
Nov 13	BOS	HKG	00:48	05:15	Landed Late	Track >
Nov 12	BOS	HKG	00:37	04:44	Landed	Track >
Nov 11	BOS	HKG	00:39	04:40	Landed	Track >
Nov 10	BOS	HKG	00:56	04:55	Landed	Track >
Nov 09	BOS	HKG	00:40	04:18	Landed	Track >
Nov 08	BOS	HKG	01:06	04:48	Landed	Track >
Nov 07	BOS	HKG	00:37	04:31	Landed	Track >
Nov 06	BOS	HKG	00:30	03:50	Landed	Track >
Nov 05	BOS	HKG	00:46	04:25	Landed	Track >

Cathay Pacific flight CX 811 links Boston and Hong Kong, 12,806 km (7,957 mi) apart, and flies daily. With 15 h 30 min in the timetable and a usual flight time of about 14 h 55 min, it often makes up time. Today it left on time, at 00:38, and is due in Hong Kong at 04:31 the next morning, 29 minutes early.

< All Boston BOS Departures All Hong Kong HKG Arrivals >

About CX 811

Cathay Pacific Flight CX811 connects Boston, United States to Hong Kong, Hong Kong, taking off from Boston Logan International Airport BOS and landing at Hong Kong International Airport HKG.

Route: Boston Logan International Airport BOS to Hong Kong International Airport HKG
Distance: 12,806 km (7,957 mi)
Typical flight time: 14 h 55 min
Flies: Daily
On time: 8 of the last 9
Average delay when late: 15 min
Usually departs from: Terminal E, gate E12

CX 811 FAQ

How long is the CX811 flight from Boston to Hong Kong?: The timetable allows 15 h 30 min. Boston to Hong Kong is 12,806 km (7,957 mi).
How often is CX811 from Boston to Hong Kong late?: 1 of the last 9 flights arrived 15 or more minutes late; when late, by 15 minutes on average.
When was the latest CX811 flight from Boston to Hong Kong?: The latest CX811 was the 00:30 (local time) departure from Boston on 13 November 2026; it landed 15 minutes late.
Which days does CX811 fly from Boston to Hong Kong?: Daily: it was scheduled on each of the last 7 days.
Which terminal does CX811 use?: It usually leaves from Terminal E, gate E12 at Boston Logan International Airport (BOS) and arrives at Terminal 1 at Hong Kong International Airport (HKG). Check the flight card above for today's terminal and gate.
What other flight numbers does CX811 have?: Also listed as CPA811 (Cathay Pacific's ICAO code) and CX 811.

CX811 and Boston BOS to Hong Kong HKG Flights

Flight CX811 is code-shared by 2 airlines using the flight numbers MH3346, OM5811

Other flights departing from Boston BOS: VS12, HU730, IB38, AA2591

Other flights arriving at Hong Kong HKG: CX883, CX427, QR8064

All flights connecting Boston BOS to Hong Kong HKG.