First you must call 1-800-447-6772 and enter offer code 657. Then if you book a trip on and before Jan 24, 2003, you will get double airline miles. Must complete your trip by Apr 4, 2003. Free Mileage Plus account required. Valid in any class of service. Valid for up to 10 flight segments.

This seems like a great deal to me. For example, if you an a companion travel overseas, with double miles that would be enough to get a free domestic airline ticket.