Until Oct. 31, 2007, United Airlines Mileage Plus is offering a 10-percent bonus on all purchases of miles. A purchase of 10,000 miles will net you 11,000 miles, an additional 1,000 bonus miles. You can purchase miles in increments of 1,000, up to 60,000 miles per calendar year. Miles cost $0.0275 per mile for purchases of 5,000 miles or less and $0.025 per mile for purchases of more than 5,000 miles. In addition, a 7.5 percent tax and $35 per transaction processing fee apply. Miles do not count toward elite qualification. Visit http://insideflyerus.wpengine.com/link/?566