Cheap flights from Japan to London from £288

The cheapest month to fly to London from Japan is in November. Flight prices, which tend to average around £730, are often lower during this time because this is during the off-season. The month of May is another great option to travel to London, with average flight prices from Japan averaging around £775.

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 £1,027. When flying out on a Saturday, the most expensive travel day of the week, you can expect to see flight prices from Japan to London for around £1,347.

The cheapest time of day to fly to London is at midday when flights can be purchased for as low as £1,106. Flights in the evening are often more expensive, with an average ticket price of £1,454.

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

You are more likely to see cheaper flights to London from Japan when booking weeks ahead of your departure date. In general, you can expect to find flights to London for around £1,316 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 Japan for as low as £864 on momondo.

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

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

China Eastern, British Airways and Japan Airlines are the top three most popular airlines that fly to London from Japan according to our data. China Eastern is the first choice among our users, with 35% of people opting to fly with this airline when travelling to London. Keep in mind that there are 4 different airlines that fly to London on a routine basis, so you have a few additional options to choose from.

Historically, on average around 14% of flights between Japan and London have experienced a delay on any given week. The average delay length over the past 12 months has been 119 minutes.

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

Wednesday 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 12% of their flights experiencing any sort of delay.

14 flights are operational daily from Japan to London as of July 2026. The most popular departure time for this route is 09:00, with 59% of flights per day taking off at midday.

As of July 2026, 99 flights take off from Japan and land in London each week. The most common flight departure day for this route is Mon, with 15% of weekly flights taking off on this day.