Hope you get a good answer, I don't know of one but in the meantime I look at the destination list of the airport website that I'm going to, sort of work backwards from there.
Awww good idea Prudie. So i tried looking for a destination list, but I found a list of airlines and a departures board and I'm not 100% sure I have what I need. Still looking.
Thanks Tony, I did see that one but it offers routes with every conceivable change as well as the direct ones. Eg going into Amsterdam and back out again.