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.

Some travel web sites (ITN or Expedia) will show distances for any flight that's on their system.

http://www.chicago.com/airliners/gc.html

Thanks for your help!!

Try www.indo.com/distance/ It is the most painless to use

Just tried Punki's suggestion on Boston-London. The site said 3280 miles. AA gives 3265 to Heathrow (west of the city), 3283 to Gatwick (south). Certainly close enough for planning even though the site presumably figures city-center-to-city-center distances and airlines (at least AA) use airport-to-airport. And the user interface is as painless as he suggests. I've added it to my bookmarks list. Thanks!