But, remember that Tokyo Haneda International Airport is only one of the airports in Tokyo – searching for flights from ‘Paris’ to ‘Tokyo’ will give you more options, and possibly lower prices.
The flight normally lasts about 9715 km. But that doesn't mean they'll be the cheapest – it's best to compare all your options.
You could also try searching by month, if you're flexible on dates. This will show you when prices are at their cheapest and their most expensive. Generally speaking, the earlier you book, the better deal you'll get.
Found your flights? Select the ones you want, then go through to the next stage to complete your booking. If you'd like to add car hire or a hotel for your trip to Japan, you can do that too – simply use the tabs at the top of the page.