I am traveling to from Bos to Barcelona and want to use Star Alliance (*a) miles to upgrade at least two coach seats. Here is what I have done so far: Searched flexible dates on Kayak using *a filter. Found good schedule on LH via Frankfurt or Munich. Went to LH website and searched for lowest upgradeable fare which listed as "V class" at $1070.00 "upgradable with miles". I want to compare against other options (miles, cash, equipment, avails). I have a Miles and More account and would need to transfer from SPG or USAir to execute. Am I on the right track with these steps? Is there a shortcut or do I need to look at all airlines one by one to compare? Are the same # of miles needed for all *a flights to this zone? Any tools out there to fare shop just upgradeable coach in the *a network? How many *a miles are needed for upgrade to Spain (30K?) Is this the same on all *a flights? How can I book the coach seat and nail upgrade at the same time so I don't lose option to inventory control? I assume these upgrades are all inventory controlled. Should I book with US Air where I have status? Or with *a partner directly? When is upgrading on int tickets a good use of miles? Which *a airlines are better for upgrades? Thanks for any advice on this. I hate doing things inefficiently and I could spend hours searching the blogs to piece this together....so I'm just asking.