Swore I would never do a mileage run, but the window of opportunity seems to be closing with the impending departure of US from *A. I would like to earn Star Gold through the A3 miles and bonus program. I will be about 5300 miles short of the 16K necessary to earn Gold. I am based in Philly, so it would seem one coast to coast run with a stop somewhere would fulfill the requirements. If the MR is to SD, it would also be a mini vacation as we used to live there, so cost would become less important. I would go as high as $350 or so. I would like to do this on a weekend in December. I am not real familiar with the use of ITA software, so I could use some suggestions. Ideal trip would be something like PHL-CLT-SAN and back leaving on a Fri and returning on a Sun so that we could get a full day plus in SD to visit with some friends.