Cheap flights from Hong Kong to London from £251

The cheapest month to fly to London from Hong Kong is in November. Flight prices, which tend to average around £593, are often lower during this time because this is during the off-season. The month of March is another great option to travel to London, with average flight prices from Hong Kong averaging around £610.

Our data shows that Sunday is the least expensive day to fly to London. Tickets to fly out on this day can be as low as £675. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Hong Kong to London for around £849.

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £741. Flights in the morning are often more expensive, with an average ticket price of £771.

Fly from Hong Kong Intl to London Heathrow for the best Hong Kong Intl - London flight prices

You are more likely to see cheaper flights to London from Hong Kong when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £687 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to London from Hong Kong for as low as £662 on momondo.

There are 3 cabin classes available to choose from on Hong Kong to London flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

You could potentially save up to 13% on your flight if you consider stops on a Hong Kong to London flight.

As of August 2026, prices for Hong Kong to London flights are approximately 4% cheaper when compared to flights at the same time last year.

SWISS, Lufthansa, and Shenzhen Airlines are the most popular carriers operating from Hong Kong Intl to London

Cathay Pacific, British Airways and Air China are the top three most popular airlines that fly to London from Hong Kong according to our data. Cathay Pacific is the first choice among our users, with 59% of people opting to fly with this airline when travelling to London. Keep in mind that there are 9 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 24% of flights between Hong Kong and London have experienced a delay on any given week. The average delay length over the past 12 months has been 136 minutes.

Generally, flights departing in the evening tend to experience fewer delays. Flights departing in the morning have, in the past, seen delays more frequently in comparison.

Saturday is statistically the day of the week that experiences the fewest delays on this flight route. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, British Airways have had the fewest delays on this route over the last 12 months, with about 9% of their flights experiencing any sort of delay.

Shanghai (PVG) was the most common stop: 26% of momondo users choosing one-stop flights on this route connected there.

Flights via Beijing (PKX) offer the lowest average return price of £401.

Flights connecting via Zurich (ZRH) have the shortest average one-way travel time: 15h 50m.

Zurich (ZRH) has the shortest average stopover time for this route: 0h 58m.

The number of flights available between Hong Kong and London is 6 per day as of August 2026. The most frequent departure time is 22:00, with 61% of daily flights leaving in the evening.

47 flights are operational weekly from Hong Kong to London as of August 2026. The most popular departure day for this route is Tue, with 15% of flights per week taking off on this day.