Under each of those region links you'll find separate charts for the different partner airlines and, as you'll be able to see, there are some reasonable deals to be had. (travelingformiles.com)
Creating separate charts for flights operated by Alaska and Virgin doesn't help, and I can only hope this situation is temporary. (travelcodex.com)
The biggest change is that there are now separate charts for travel on United flights and Star Alliance partner airlines. (rewardexpert.com)