Cheap flights to Watertown
- Watertown Regional Airport (IATA: ATY, ICAO: KATY) is a public airport located in Watertown, South Dakota, United States. It serves as the primary airport for the city of Watertown and the surrounding region. The airport offers both scheduled and charter passenger flights, as well as general aviation services. It is operated by the City of Watertown and is served by one commercial airline, which provides flights to and from Denver, Colorado. The airport features a single asphalt runway and a passenger terminal building.