Cheap flights from London Heathrow Airport to Hong Kong from £323

If you don’t want to visit Hong Kong in November, then you should wait until January to fly from London Heathrow Airport, when ticket prices are also cheap, with an average price of £601.

On average, the least expensive day to fly to Hong Kong from London Heathrow Airport is on a Sunday. momondo users have found tickets for Sunday departures for as low as £876. However, this price may fluctuate depending on the airline, the season, and holidays. Flights from London Heathrow Airport to Hong Kong on a Saturday will generally be more expensive and average around £927. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our most recent data shows that the best time of day to fly to Hong Kong is in the afternoon. Flights from London Heathrow Airport to Hong Kong during this time can be as low as £863. Flights in the morning are often more expensive, with an average ticket price of £959.

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

You are more likely to see cheaper flights to Hong Kong from London Heathrow Airport when booking weeks ahead of your departure date. In general, you can expect to find flights to Hong Kong for around £715 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hong Kong from London Heathrow Airport for as low as £651 on momondo.

There are 4 cabin classes available to choose from on London Heathrow Airport to Hong Kong flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

China Eastern, Shenzhen Airlines, and British Airways are the most popular carriers operating from London Heathrow to Hong Kong Intl

Cathay Pacific, British Airways and Air China are the top three most popular airlines that fly to Hong Kong from London Heathrow Airport according to our data. Cathay Pacific is the first choice among our users, with 62% of people opting to fly with this airline when travelling to Hong Kong. Keep in mind that there are 19 different airlines that fly to Hong Kong on a routine basis, so you have a few additional options to choose from.

Historically, on average around 13% of flights between London and Hong Kong have experienced a delay on any given week. The average delay length over the past 12 months has been 154 minutes.

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

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

According to our data, Cathay Pacific have had the fewest delays on this route over the last 12 months, with about 13% of their flights experiencing any sort of delay.

Abu Dhabi (AUH) was the most common stop: 22% of momondo users choosing one-stop flights on this route connected there.

Flights via Haikou (HAK) offer the lowest average return price of £500.

Flights connecting via Haikou (HAK) have the shortest average one-way travel time: 15h 05m.

Amsterdam (AMS) has the shortest average stopover time for this route: 1h 57m.

As of July 2026, there are 7 flights per day flying from London Heathrow Airport to Hong Kong. The most common time of day flights depart is 19:00, with 70% of flights taking off in the evening.

As of July 2026, 49 flights take off from London Heathrow Airport and land in Hong Kong each week. The most common flight departure day for this route is Mon, with 14% of weekly flights taking off on this day.