United is matching American’s offer of double elite-qualifying miles through June 15, 2009. Registration prior to travel is required and the double EQMs are only offered on flights operated by United and United Express. After registering, members will earn double base flight EQMs on all qualifying flights flown during the promotion. The bonus does not apply to elite-qualifying segments, class-of-service bonuses or elite bonus miles. To qualify for the bonus, flights must be booked and flown between March 19 and June 15, 2009; however, if you have already booked flights between these dates, call Mileage Plus customer service at (800) 421-4655 and mention code MPW999 to ensure your flights will count toward the bonus (we offer no guarantees on this, but it’s worth a try). Register at http://www.united.com/offer/mpw029