KATY
ATYWatertown Regional Airport · Watertown
ILS Approach StatusILS FREQUENCIES VERIFIED ✅
Field Elevation
1,749 ft / 533 m
Transition Altitude
18,000 ft
Primary Channel
RDO 122.50 MHz (HURON RDO)
Runway Summary
12/306,900 ftAsphaltLIGHTED
17/356,895 ftAsphaltLIGHTED
Mission Briefing & Tools
Direct calculators and pre-filled resources for this airport.
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Buy me a beerBriefing for Watertown Regional Airport (KATY), United States. This facility features 2 active runways with an elevation of 1,749 ft. Verified ILS frequencies are available for precision approaches.Maintain a Transition Altitude of 18,000 ft for altimeter reset.
Full Name
Watertown Regional Airport
ICAO / IATA
KATY / ATY
Municipality
Watertown
Country
Region
US-SD
GPS Coordinates
Transition Altitude
18,000 ft
Official Website
—
Wikipedia
Runway 12 / 30
LIGHTED
Length: 6,900 ft / 2,103 m
Surface: Asphalt
Heading: 124.6° / 304.6°
Surface: Asphalt
Heading: 124.6° / 304.6°
RWY 12
No ILS
RWY 30
No ILS
Runway 17 / 35
ILSLIGHTED
Length: 6,895 ft / 2,102 m
Surface: Asphalt
Heading: 180.3° / 0.3°
Surface: Asphalt
Heading: 180.3° / 0.3°
RWY 17
No ILS
RWY 35
111.90 MHz
ID: ATY | CRS: 354°
ASOS ASOS
126.63 MHz
CNTR MINNEAPOLIS CNTR
128.50 MHz
RDO HURON RDO
122.50 MHz
UNIC CTAF/UNICOM
123.05 MHz
Data Source: OurAirports · Technical Briefing Jan 2026
ILS Data Source: AIP / FAA NASR Cycle Verified