
Watertown Regional Airport (IATA: ATY, ICAO: KATY, FAA LID: ATY), formerly Watertown Municipal Airport, is two miles northwest of Watertown in Codington County, South Dakota, United States. The National Plan of Integrated Airport Systems for 2015–2019 categorized it as a non-primary commercial service facility. Federal Aviation Administration data says it had 4,348 passenger boardings (enplanements) in calendar year 2013, a decrease of 30.5% from 6,254 enplanements in 2012.

44.914°N, 97.155°O · 533 m s. n. m. (1.749 ft)
Lengths and surfaces from the public OurAirports register; open runways only.
Approach
Common traffic (CTAF)
Automated weather
Frequencies from the official publication: FAA NASR, AIRAC 01 OCT 2026, checked on Oct 16, 2026. They change with each amendment: not for navigation without checking the current AIP. See the official publication In MHz.
During World War II, the airfield was used by the United States Army Air Forces as a Second Air Force cold weather bomber training base as an auxiliary to Sioux Falls Army Air Field, and by Air Proving Ground Command.
B-17 Flying Fortress and B-24 Liberator units underwent advanced training before going overseas. One unit that trained here was the 702d Bombardment Squadron of the 445th Bombardment Group.
From our own logbook: 5 aircraft documented between 2020 and 2021.
Types seen here
Airlines with documented aircraft
A count of our own aircraft profiles, year by year, from the public United States flight records: it reflects what we have documented, not the airport’s total traffic.
Other airlines with direct routes
Airlines with current passenger routes from here, according to Wikipedia route tables cross-checked from both ends (October 2026).
Photo: United States Geological Survey (USGS) · Public domain · view original
Data from OurAirports (public domain) · destinations and airlines from Wikipedia route tables (CC BY-SA, 2026), unless another source is given · profile and photo from Wikidata/Wikimedia Commons (CC0 / CC) · summary and history from Wikipedia (CC BY-SA).
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This page was last updated on October 16, 2026
APA
Vuelopedia. (2026, October 16). Watertown Regional Airport (ATY). Retrieved October 25, 2026, from https://vuelopedia.org/en/airport/ATY
MLA
“Watertown Regional Airport (ATY).” Vuelopedia, Fundación Poderia, 16 Oct. 2026, vuelopedia.org/en/airport/ATY. Accessed 25 Oct. 2026.
Chicago
Vuelopedia. “Watertown Regional Airport (ATY).” Fundación Poderia. Last modified October 16, 2026. https://vuelopedia.org/en/airport/ATY.
Harvard
Vuelopedia (2026) Watertown Regional Airport (ATY). Available at: https://vuelopedia.org/en/airport/ATY (Accessed: 25 October 2026).
BibTeX
@misc{vuelopedia_en_airport_aty,
author = {{Vuelopedia}},
title = {{Watertown Regional Airport (ATY)}},
publisher = {Fundación Poderia},
year = {2026},
date = {2026-10-16},
url = {https://vuelopedia.org/en/airport/ATY},
howpublished = {\url{https://vuelopedia.org/en/airport/ATY}},
urldate = {2026-10-25},
note = {Accessed 2026-10-25}
}Wikipedia
{{cite web |url=https://vuelopedia.org/en/airport/ATY |title=Watertown Regional Airport (ATY) |website=Vuelopedia |publisher=Fundación Poderia |date=2026-10-16 |access-date=2026-10-25 |language=en}}