While most IHG properties Worldwide have a Double Miles offer running right now, you can actually earn Triple Miles for stays at Holiday Inn Vacations Resorts during the same time period if you credit to American Airlines, United Airlines or Hawaiian Airlines. If you find yourself at one of these resorts for more than one day then register for this offer instead of the double miles (if for some reason you are only staying 1 day then register for the double miles offer)
Triple Airline Miles for stays of 2 or more nights at a Holiday Inn Club Vacations® Resort . Full details, online registration and booking (Registration is required) Until Dec 31, 15
Participating airlines for this promotion include American Airlines, United Airlines, and Hawaiian Airlines.