Kansas City International Airport (airport code MCI) is located 15 miles northwest of downtown Kansas City, Missouri. Opened in 1972, the airport has several transportation options available including Metro bus service (Monday through Friday), taxis, shuttles, rental cars and limousines. The airport has 15 airlines and non-stop service to 51 cities in the US, Canada and Mexico. More commonly referred to as KCI, the airport is in the Top 50 busiest US airports with just under 10 million passengers each year. The airport has three terminals, A, B and C. Adjacent to the airport is an 800-acre LEED?-certified business park called Intermodal BusinessCentre that will house national and international companies.