Cathay Pacific Flights from Hong Kong to London

Based on Trip.com data, {{onewayAirlineName}} offers one-way fares as low as {{onewayPrice}} on {{onewayifDirect}} routes (e.g. {{departAirportCode}} to {{arrivalAirportCode}} on {{onewayDate}}), while {{roundtripAirlineName}} offers {{roundtripifDirect}} round-trips from {{roundtripPrice}} departing on {{roundtripDate}} and returning on {{returnDate}}.

At the moment, you can catch a direct flight from Hong Kong to London with the following airlines, including: Cathay Pacific British Airways China Eastern Airlines Air China Turkmenistan Airlines Selected airlines are based on historical data collected from flight bookings users made on Trip.com within the last 90 days.

It takes about 14 hours 16 minutes to fly from Hong Kong (HKG) to London (LON).

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Hong Kong to London is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

Based on Trip.com data in the past 4 weeks, there is 34 flight per week flying from Hong Kong to London. You can check the weekly schedule for popular airlines on this route below: Cathay Pacific: S/M/T/W/T/F/S -- CX251 (23:47) Cathay Pacific: S/M/T/W/T/F/S -- CX253 (15:42) Cathay Pacific: S/M/T/W/T/F/S -- CX257 (08:48)

To find best deals on flights from Hong Kong to London, you can use various tools on Trip.com:
· Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on {{25a2b5_owDate}}, with one-way flights priced at just {{25a2b5_owPrice}}.
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The cheapest months to fly from Hong Kong to London is April, when demand for travel is lower.

After crunching the numbers on our September flight calendar, it's currently cheapest to fly from Hong Kong to London on September 23, 2025 with Hainan Airlines, with prices starting at £201.

You can land at any one of the following hubs in London, with Hong Kong International Airport to Heathrow Airport (HKG-LHR) is by far the most common option on this route: London City Airport (LCY) London Gatwick Airport (LGW) Heathrow Airport (LHR) London Luton Airport (LTN) London Southend Airport (SEN) London Stansted Airport (STN).

The time difference between London and Hong Kong is 8h.

Tickets can only be changed or cancelled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.