I do not recall all the details, but the British press frankly discussed the funeral plans earlier this year or perhaps last year.
When the Queen passes away, the new King will have a few private ceremonies in the UK. He will then board a plane and fly to as many memorial services as possible. The funeral will be on D+10, IIRC. Presume the King will be globetrotting for seven days.
How many stops could he possibly make in seven days in order to be back in London for the funeral? What would such a schedule look like?
Leave London as dusk. Arrive Bermuda at dawn. Arrive Ottawa that same evening. A morning event in Vancouver. (Skip Fiji?) Then a long leg to New Zealand. A same-day stop in Canberra. I suppose something in India as it is part of the Commonwealth. Is Pakistan? Then some stops in Africa?
Does that sound about right?