Cheap flights from London to Japan from £337

The cheapest month to fly to Japan from London is in January. Flight prices, which tend to average around £617, are often lower during this time because this is during the off-season. If you don’t want to visit Japan in January, then you should wait until November to fly from London, when ticket prices are also cheap, with an average price of £671.

The cheapest day to depart from London to Japan is on a Wednesday when prices can be found for as low as £1,202. On the other hand, Saturday is the most expensive day to depart from London because it is more convenient for both business and leisure travellers. As a result, prices tend to be around £1,317.

Our data shows that the cheapest London to Japan flights are usually those with departure times in the afternoon. Our users have found flights to Japan in the afternoon for as low as £1,149. At midday is when there is more demand to fly to Japan, so prices are often more expensive at around £1,386 per ticket.

Fly from London Heathrow to Tokyo Haneda for the best London - Japan flight prices

You are more likely to see cheaper flights to Japan from London when booking weeks ahead of your departure date. In general, you can expect to find flights to Japan for around £1,083 when searching weeks before you fly. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Japan from London for as low as £1,025 on momondo.

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

China Eastern, Air India, and Vietnam Airlines are the most popular carriers operating from London to Japan

Japan Airlines, Air China and China Eastern are the top three most popular airlines that fly to Japan from London according to our data. Japan Airlines is the first choice among our users, with 36% of people opting to fly with this airline when travelling to Japan. Keep in mind that there are 25 different airlines that fly to Japan on a routine basis, so you have a few additional options to choose from.

Historically, on average around 12% of flights between London and Japan have experienced a delay on any given week. The average delay length over the past 12 months has been 125 minutes.

Generally, flights departing in the morning tend to experience fewer delays. Flights departing at night 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. Sunday has historically seen more delays on average compared to the rest of the week.

According to our data, Japan Airlines have had the fewest delays on this route over the last 12 months, with about 8% of their flights experiencing any sort of delay.

14 flights are operational daily from London to Japan as of August 2026. The most popular departure time for this route is 09:00, with 42% of flights per day taking off at midday.

98 flights are operational weekly from London to Japan as of August 2026. The most popular departure day for this route is Mon, with 14% of flights per week taking off on this day.