Buffalo Niagara International Airport is in Cheektowaga, New York, United States. The airport serves Buffalo, New York and Niagara Falls, New York in the United States, and the southern Golden Horseshoe region of Ontario, Canada. It is the third-busiest airport in the state of New York and the busiest inside of the Buffalo-Niagara Falls metropolitan area. It is about 11 miles east of Downtown Buffalo and 60 miles southeast of Toronto. The airport covers 1,000 acres.