Kansas City International Airport is a public airport in Kansas City, Missouri, located 15 miles northwest of Downtown Kansas City in Platte County, Missouri. The airport was opened in 1972 and a new complex in the airport was completed in 2023, replacing the old one. MCI replaced Kansas City Municipal Airport in 1972, with all scheduled passenger airline flights moved from MKC to MCI. It serves the Kansas City Metropolitan Area and is the primary passenger airport for much of western Missouri and eastern Kansas.