Niagara Falls International Airport is located 4 mi east of downtown Niagara Falls, in the Town of Niagara in Niagara County, New York, United States. Owned and operated by the Niagara Frontier Transportation Authority, the airport is a joint civil-military airfield and shares its runways with the Niagara Falls Air Reserve Station. A new terminal building opened in 2009. It is notable for serving vastly more Canadian passengers from over the nearby border than Americans.