Note: This code may not yet be active. Promotion Code: TPLMX Dates: Travel between March 17, 2011, through June 15, 2011. Offer: For a limited time, AAdvantage members can earn up to triple miles when they fly on American Airlines nonstop flights to/from Guadalajara, Mexico City or Monterrey, Mexico. Earn triple AAdvantage miles for purchased travel in Business Class or double miles for travel in Economy Class. To qualify, simply register prior to travel and fly between March 17 and June 15, 2011. Link to aa.com.