KATY is the ICAO code for Watertown Regional Airport (IATA ATY), located in Watertown, SD.
Watertown Regional Airport (KATY) is a medium airport in Watertown, SD. Pilots and dispatchers reference it by ICAO code KATY or IATA code ATY. It sits in North America.
Watertown Regional Airport is a regional commercial airport that doubles as a busy private-aviation base. Operators benefit from full instrument approaches and an FBO infrastructure scaled for regular jet traffic, often without the congestion of the nearest major hub.
The longest runway measures 6,898 ft (2,103 m), a midsize and super-midsize-class field. Representative aircraft that operate comfortably here include the Citation Longitude, Challenger 350, and Gulfstream G280. In practice this comfortable for most midsize and super-mid charter equipment.
Watertown Regional Airport lies at 1,749 ft elevation.
Local operations run on America/Chicago. Scheduled airline service is light enough that it rarely interferes with charter movements, though planners should still expect to coordinate with the handling agent for international turnarounds.
SkyAccess currently tracks 6 departing and 54 arriving private-jet legs at KATY across the next six months of operator inventory. 3 charter operators have run trips through this field in our recent inventory window.
Regional fields like KATY are a meaningful share of US private aviation — closer to the trip's actual origin or destination than the nearest major hub, with shorter ramp-to-cabin times that are the main reason owners and brokers prefer them.