Star Alliance website has that info & tools
My point being that some of the Star Alliance airlines have that information on their web sites - therefore AC should have the information (including prices) on its own web site (so one does not have to go to the Star Alliance web site).
Examples:
Singapore Airlines:
http://www.singaporeair.com/jsp/cms/...-the-world.jsp
ANA:
http://www.ana.co.jp/wws/us/e/travel...rtw/index.html
Lufthansa:
http://www.lufthansa.com/online/port...d=2672945&l=en