Cathay Pacific CX251 Flight status
According to Trip.com real-time data, the CX251 flight operated by Cathay Pacific on Sep 20, 2026 is scheduled to fly from Hong Kong (HKG) to London (LHR). The flight is expected to depart at 22:45 (local time in Hong Kong, UTC+8) and land at 05:11 (local time in London, UTC+1)
Sat, Sep 19
Sun, Sep 20
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En route
Your flight has departed Hong Kong and is expected to arrive in London at 05:43.
9608km
13h 55m
Check-in Counter
A,C
Boarding Gate
34
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. Please refer to airport announcements for the most up-to-date information. You can also explore more flights from Hong Kong to London or track other flights with our flight status tracker.
Track the Previous Flight Status: Scheduled
CX391
|
Beijing (BJS) 
Hong Kong (HKG)
Hong Kong (HKG)Scheduled: 17:25
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CX251 Aircraft Details
According to Trip.com real-time data, the CX251 flight flying from Hong Kong to London on 9/20/2026 is operated by the aircraft model Boeing 777-300ER. This aircraft has been in service for 15y, 1m. The aircraft is equipped with 294 seats. The average flight distance for this journey is 9,608km.
Boeing 777-300ER
Punctuality (Departure)
60%
Punctuality (Arrival)
97%
Early on average
4 minutes
Age
15y, 1m
Seats
294
Flight Distance
9,608km
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 43% 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 7% 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 Sat, Sep 19 from HKG at approximately 23:17. This flight is expected to arrrive in LHR at 05:43.
| Date | Airport | Aircraft Model | Departure | Arrival | Status | |
|---|---|---|---|---|---|---|
| Departure | Arrival | |||||
| Mon, Sep 14 | Hong Kong (HKG) | London (LHR) | 77W | 23:06 | 05:19 | Arrived |
| Tue, Sep 15 | Hong Kong (HKG) | London (LHR) | 77W | 23:06 | 05:22 | Arrived |
| Wed, Sep 16 | Hong Kong (HKG) | London (LHR) | 77W | 23:16 | 05:43 | Arrived |
| Thu, Sep 17 | Hong Kong (HKG) | London (LHR) | 77W | 23:16 | 05:41 | Arrived |
| Fri, Sep 18 | Hong Kong (HKG) | London (LHR) | 77W | 22:59 | 05:23 | Arrived |
| Sat, Sep 19 | Hong Kong (HKG) | London (LHR) | 77W | 23:17 | 05:43 | En route |
| Sun, Sep 20 | Hong Kong (HKG) | London (LHR) | 77W | 22:45 | 05:11 | 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 60% (Late on average 27 minutes), and the on-time arrival rate is 97% (Early on average 4 minutes).
On-Time Departures
Punctuality
60%
Late on average 27 minutes
Early
0%
On time
60%
30 mins late
37%
60 mins late
3%
90 mins late
0%
Cancelled
0%
On-Time Arrivals
Punctuality
97%
Early on average 4 minutes
Early
73%
On time
23%
30 mins late
0%
60 mins late
3%
90 mins late
0%
Cancelled
0%
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Flight FAQs
What is the current status of flight cx251?
Flight cx251 has not departed yet and is currently on schedule. Scheduled departure 22:45, arrival 05:40 (updated Sep 20, 2026).Is flight cx251 on time today?
Flight cx251 has not departed yet and is currently on schedule. Scheduled departure is 22:45, with arrival at 05:40. 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 22:45. The latest actual or estimated departure time is 22:45, and the current status is Scheduled (updated Sep 20, 2026).When is flight cx251 scheduled to arrive?
Flight cx251 is scheduled to arrive at 05:40. The latest estimated or actual arrival time is 05:11. Status is Scheduled as of Sep 20, 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 hours 55 minutes; operating days may include Sunday.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 Sep 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 cx251 departed from Hong Kong?
Flight cx251 has not departed from Hong Kong (HKG) yet and is currently on schedule for 22:45.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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Time on arrival: Hong Kong 12:11| London 05:11
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