Westchester County Airport is a county-owned airport in Westchester County, New York, three miles (6 km) northeast of downtown White Plains, with territory in the towns of North Castle and Harrison, New York, and village of Rye Brook, New York. It is sometimes referred to as the White Plains Airport and is so identified by the Official Airline Guide (OAG).

White Plains is a city and the county seat of Westchester County, New York, United States. It is the 29th-largest municipality in the state of New York, an inner suburb of New York City, and a commercial hub of Westchester County, a densely populated suburban county that is home to about one million people. White Plains is located in south-central Westchester County. Its downtown is 25 miles (40 km) north of Midtown Manhattan.