Does anyone know of a web site / other source that shows the distances between cities in the world? I know that many US and European airlines - such as DL and SR - publish this is their timetables, but I'm looking for distances between some Asian and Australian cities so as to know how many miles I'll be getting for paying a slightly higher fare. These routes would include Singapore --> Sydney and Singapore --> Hanoi. Any help would be greatly appreciated.

Also, what led to this question being asked at all was that fact that Singapore Airlines now gives miles to economy class passengers. These, I believe, can be posted to any ff program that they participate in - DL and AA in N. America. See my post in the DL section for more details.