If you're looking to fly from London Heathrow to Okinawa, you might like to know that 06 / Aug / 2020 currently has the cheapest flights. At the moment, there are zero airlines flying to Okinawa. Go through the results to find the right flights for you – you can adjust the filters to see find even more flights to Okinawa.
If you can't find a flight time that suits you, why not look at flying out from a different airport?
The distance between London Heathrow to Okinawa is 10013 km. You can see the various flight times in the results.
Searching by month, for instance, will show you the best time of the week to fly.