Cathay Pacific

Is CX811 delayed?

Service date: Sep 18, 2026 · Scheduled arrival date; departure time unavailable (Asia/Hong_Kong)

Arrived

24 min early

Official source · Updated Sep 17, 2026, 20:38 UTC

Departure

Boston

BOS

Scheduled

—

Not available

Arrival

Hong Kong

HKG

Actual

04:36~~05:00~~

Sep 18

Times shown in airport local time

Flight details

Departure · UTC

Scheduled: Not available
Estimated: Not available
Actual: Not available

Arrival · UTC

Scheduled: Sep 17, 2026, 21:00 UTC
Estimated: Sep 17, 2026, 20:34 UTC
Actual: Sep 17, 2026, 20:36 UTC

Route overview

Recent arrivals

Dates below are arrival dates in the destination airport’s time zone. The detailed history uses service dates.

Sun, Sep 20, 2026
BOS → HKG
17 min late
Sat, Sep 19, 2026
BOS → HKG
35 min early
Fri, Sep 18, 2026
BOS → HKG
24 min early
Thu, Sep 17, 2026
BOS → HKG
8 min early
Wed, Sep 16, 2026
BOS → HKG
12 min early

Flight history and details

Aug 21, 2026 — Sep 20, 2026

Observed arrivals: 27
Arrivals over 15 minutes late: 4
Observed cancellations: 0
Observed occurrences: 28

Results compare scheduled and actual arrival times. Cancelled or diverted flights are excluded. Some flights may be missing from the history.

How flight status works

CX811 Recent arrival history
Service date	Departure	Arrival	Actual	Arrival delay (minutes)
Sep 20, 2026Arrived	Boston	Hong Kong	Sep 19, 2026, 21:17 UTC	17
Sep 19, 2026Arrived	Boston	Hong Kong	Sep 18, 2026, 20:25 UTC	-35
Sep 18, 2026Arrived	Boston	Hong Kong	Sep 17, 2026, 20:36 UTC	-24
Sep 17, 2026Arrived	Boston	Hong Kong	Sep 16, 2026, 20:52 UTC	-8
Sep 16, 2026Arrived	Boston	Hong Kong	Sep 15, 2026, 20:48 UTC	-12
Sep 15, 2026Arrived	Boston	Hong Kong	Sep 14, 2026, 20:04 UTC	-56
Sep 14, 2026Arrived	Boston	Hong Kong	Sep 13, 2026, 20:33 UTC	-27
Sep 13, 2026Arrived	Boston	Hong Kong	Sep 12, 2026, 20:46 UTC	-14
Sep 12, 2026Arrived	Boston	Hong Kong	Sep 11, 2026, 20:14 UTC	-46
Sep 11, 2026Arrived	Boston	Hong Kong	Sep 10, 2026, 20:22 UTC	-38
Sep 10, 2026Arrived	Boston	Hong Kong	Sep 9, 2026, 20:35 UTC	-25
Sep 9, 2026Arrived	Boston	Hong Kong	Sep 8, 2026, 20:15 UTC	-45
Sep 6, 2026Arrived	Boston	Hong Kong	Sep 6, 2026, 20:24 UTC	-36
Sep 5, 2026Arrived	Boston	Hong Kong	Sep 5, 2026, 20:46 UTC	-14
Sep 4, 2026Arrived	Boston	Hong Kong	Sep 4, 2026, 20:58 UTC	-2
Sep 3, 2026Arrived	Boston	Hong Kong	Sep 3, 2026, 20:52 UTC	-8
Sep 2, 2026Arrived	Boston	Hong Kong	Sep 2, 2026, 21:05 UTC	5
Sep 1, 2026Arrived	Boston	Hong Kong	Sep 1, 2026, 22:13 UTC	73
Aug 31, 2026Arrived	Boston	Hong Kong	Aug 31, 2026, 21:18 UTC	18
Aug 30, 2026Arrived	Boston	Hong Kong	Aug 30, 2026, 20:49 UTC	-10
Aug 29, 2026Arrived	Boston	Hong Kong	Aug 29, 2026, 20:35 UTC	-24
Aug 28, 2026Arrived	Boston	Hong Kong	Aug 28, 2026, 20:47 UTC	-12
Aug 26, 2026Arrived	Boston	Hong Kong	Aug 26, 2026, 20:44 UTC	-15
Aug 25, 2026Arrived	Boston	Hong Kong	Aug 25, 2026, 21:29 UTC	29
Aug 24, 2026Arrived	Boston	Hong Kong	Aug 24, 2026, 20:13 UTC	-46
Aug 23, 2026Arrived	Boston	Hong Kong	Aug 23, 2026, 20:25 UTC	-34
Aug 22, 2026Arrived	Boston	Hong Kong	Aug 22, 2026, 20:46 UTC	-13