Cheap flights from London to Hong Kong from $421

If you don’t want to visit Hong Kong in November, then you should wait until May to fly from London, when ticket prices are also cheap, with an average price of $998.

The cheapest day to depart on your flight to Hong Kong is on a Saturday when prices can be found for as low as $1,640. This is often the case because there is less demand to fly during this day of the week. Flights from London to Hong Kong on a Monday will generally be more expensive and average around $2,020. Keep in mind that these prices on both days could fluctuate depending on the season and the demand.

Our data shows that the cheapest London to Hong Kong flights are usually those with departure times in the evening. Our users have found flights to Hong Kong in the evening for as low as $1,763. In the morning is when there is more demand to fly to Hong Kong, so prices are often more expensive at around $1,887 per ticket.

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

You are more likely to see cheaper flights to Hong Kong from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Hong Kong for around $1,268 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 for as low as $1,144 on momondo.

There are 3 cabin classes available to choose from on London to Hong Kong Intl 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 65% on your flight if you consider stops on a London to Hong Kong flight.

As of March 2026, prices for London to Hong Kong flights are approximately 7% cheaper when compared to flights at the same time last year.

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 150 minutes.

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

Monday 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 9% of their flights experiencing any sort of delay.

Beijing (PKX) was the most common stop: 67% of momondo users choosing one-stop flights on this route connected there.

Flights via Beijing (PKX) offer the lowest average return price of $722.

Flights connecting via Helsinki (HEL) have the shortest average one-way travel time: 16h 30m.

Helsinki (HEL) has the shortest average stopover time for this route: 2h 00m.

The number of flights available between London and Hong Kong is 7 per day as of March 2026. The most frequent departure time is 17:00, with 56% of daily flights leaving in the afternoon.

As of March 2026, there are 49 flights per week flying from London to Hong Kong. The most common day of the week flights depart is Mon, with 14% of flights taking off on this day.