London to Hong Kong flight time

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

It takes about 12 hours 43 minutes to fly from London to Hong Kong.

By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from London to Hong Kong 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 31 flight per week flying from London to Hong Kong. You can check the weekly schedule for popular airlines on this route below: Cathay Pacific: S/M/T/W/T/F/S -- CX250 (18:23) Cathay Pacific: S/M/T/W/T/F/S -- CX252 (11:31) Cathay Pacific: S/M/T/W/T/F/S -- CX254 (22:25)

The cheapest months to fly from London to Hong Kong is November, when demand for travel is lower.

After crunching the numbers on our December flight calendar, it's currently cheapest to fly from London to Hong Kong on December 29, 2025 with China Eastern Airlines, with prices starting at MNT 2,394.

You can land at any one of the following hubs in Hong Kong, with Heathrow Airport to Hong Kong International Airport (LHR-HKG) is by far the most common option on this route: Hong Kong International Airport (HKG).

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

Tickets can only be changed or canceled 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.