Originally Posted by dolfinco

Im sure this will have been asked before but im really not sure what terminology to stick in a search to find it.

On google flights you can put in 5 departure airports and click on Map and see everywhere in the world you can fly to on Business with certain amount of stops and its really easy to see......

BUT

Is there any site that does the opposite where you can simply state your destination is Hong Kong and it then looks at all the departure airports and returns a price.

I havent seen one but also cant imagine why there isnt one. It must surely work on the same principle of a search and return value.

Anyway, can anyone help ?