Cathay Pacific
CX251 Flight Status
According to Trip.com real-time data, the CX251 flight operated by Cathay Pacific on Aug 29, 2026 is scheduled to fly from Hong Kong (HKG) to London (LHR). The flight is expected to depart at 10:45 PM (local time in Hong Kong, UTC+8) and land at 5:15 AM (local time in London, UTC+1) .
Fri, Aug 28
Sat, Aug 29
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En route
Your flight has departed Hong Kong and is expected to arrive in London at 5:39 AM.
9608km
13h 55m
Check-in Counter
A,C
Boarding Gate
43
Arrival Gate
--
Baggage
--
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Scheduled
Your flight will depart on time.
9608km
13h 55m
Check-in Counter
A,C
Boarding Gate
--
Arrival Gate
--
Baggage
--
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Information provided by VariFlight
For real-time updates, please check airport displays or contact your airline.
You can also explore more flights from Hong Kong to London or track other flights with our flight status tracker.
CX251 Aircraft Details
According to Trip.com real-time data, the CX251 flight flying from Hong Kong to London on 8/29/2026 is operated by the aircraft model Boeing 777-300ER. This aircraft has been in service for 12y, 11m. The aircraft is equipped with 294 seats. The average flight distance for this journey is 9,608 km.
Boeing 777-300ER
Punctuality (Departure)
33
%
Punctuality (Arrival)
80
%
Late on average
5 minutes
Age
12y, 11m
Seats
294
Flight Distance
9,608 km
Economy
Premium Economy
Business
First
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (additional charge)
USB port and power outlet
Seat Information
81 cm
Legroom
47 cm
Seat width better than on 57% of flights
130°
Reclining Angle
3-4-3
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (free)
USB port and power outlet
Seat Information
97 cm
Legroom
50 cm
Seat width
130°
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
109 cm
Legroom
53 cm
Seat width better than on 29% of flights
180°
Reclining Angle
Fully reclinable
1-2-1
Seat layout example
In-Flight Services
Meal included
Seatback entertainment system
Wi-Fi (free)
USB port and power outlet
Seat Information
206 cm
Legroom
91 cm
Seat width
180°
Reclining Angle
Fully reclinable
1-1-1
Seat layout example
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Flight History for CX251
Trip.com historical records show that the last CX251 flight departed on Fri, Aug 28 from HKG at approximately 11:09 PM. This flight is expected to arrrive in LHR at 5:39 AM.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Sun, Aug 23 | Hong Kong (HKG) | London (LHR) | 77W | 11:09 PM | 5:33 AM | Arrived |
| Mon, Aug 24 | Hong Kong (HKG) | London (LHR) | 77W | 11:07 PM | 5:27 AM | Arrived |
| Tue, Aug 25 | Hong Kong (HKG) | London (LHR) | 77W | 11:07 PM | 5:24 AM | Arrived |
| Wed, Aug 26 | Hong Kong (HKG) | London (LHR) | 77W | 12:10 AM | 6:45 AM | Arrived |
| Thu, Aug 27 | Hong Kong (HKG) | London (LHR) | 77W | 11:17 PM | 5:35 AM | Arrived |
| Fri, Aug 28 | Hong Kong (HKG) | London (LHR) | 77W | 11:09 PM | 5:39 AM | En route |
| Sat, Aug 29 | Hong Kong (HKG) | London (LHR) | 77W | 10:45 PM | 5:15 AM | Scheduled |
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CX251 On-Time Performance
Based on the average performance of this flight over the past 30 trips, the on-time departure rate of CX251 is 33% (Late on average 40 minutes), and the on-time arrival rate is 80% (Late on average 5 minutes).
On-Time Departures
Punctuality
33
%
Late on average
40 minutes
Early
0
%
On time
33
%
30 mins late
53
%
60 mins late
7
%
90 mins late
7
%
Canceled
0
%
On-Time Arrivals
Punctuality
80
%
Late on average
5 minutes
Early
70
%
On time
10
%
30 mins late
10
%
60 mins late
7
%
90 mins late
3
%
Canceled
0
%
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Frequently Asked Questions
-
What is the current status of flight cx251?
Flight cx251 has not departed yet and is currently on schedule. Scheduled departure 10:45 PM, arrival 5:40 AM (updated Aug 29, 2026). -
Is flight cx251 on time today?
Flight cx251 has not departed yet and is currently on schedule. Scheduled departure is 10:45 PM, with arrival at 5:40 AM. Recheck gate and timing before you head to the airport. -
Has flight cx251 departed yet? What is the departure time?
Flight cx251 is scheduled to depart at 10:45 PM. The latest actual or estimated departure time is 10:45 PM, and the current status is Scheduled (updated Aug 29, 2026). -
When is flight cx251 scheduled to arrive?
Flight cx251 is scheduled to arrive at 5:40 AM. The latest estimated or actual arrival time is 5:15 AM. Status is Scheduled as of Aug 29, 2026. -
What route does flight cx251 fly?
Flight cx251 is operated by Cathay Pacific from Hong Kong (HKG) to London (LHR). Typical flight time is about 13 hours55 minutes; operating days may include Saturday. -
How can I check real-time status for flight cx251?
Track flight cx251 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 cx251 is delayed or canceled, what should I do?
If cx251 is delayed or canceled, first confirm the latest status here (Scheduled, updated Aug 29, 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 cx251 departed from Hong Kong?
Flight cx251 has not departed from Hong Kong (HKG) yet and is currently on schedule for 10:45 PM. -
What is the seat configuration for flight cx251?
Flight cx251 usually flies a Boeing 777-300ER with seat layout 3-4-3. Layouts can differ by aircraft subtype and cabin product—confirm your seat map in Manage Booking after you purchase.
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