KATY · Watertown Regional Airport

WATERTOWN, SOUTH DAKOTA · MEDIUM AIRPORT · SCHEDULED SERVICE

1,749

Elevation ft

Runways

6,898

Longest ft · 12/30

44.91N

97.15W

Watertown Regional Airport serves Watertown, South Dakota at 1,749 ft elevation with its longest runway, 12/30, at 6,898 by 100 ft. The figures below are computed from FAA NASR runway data (via OurAirports) and the same rules of thumb JetDesk uses on the airport page in the app; the POH and current NOTAMs are the authority.

Open KATY in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
12/30	6,898 × 100 ft	asphalt	lit
17/35	6,893 × 100 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 1,749 ft is about 12°C. Every 1,000 ft of density altitude adds roughly 8 percent to a turboprop's takeoff distance and 5 percent to its landing distance. The table uses Piper Meridian book numbers (2,438 ft takeoff and 2,110 ft landing over a 50 ft obstacle at sea level, ISA, max weight) as a reference airplane; heavier turboprops and light jets scale the same way from their own POH figures.

Conditions	Density altitude	Takeoff est.	Landing est.	Landing × 1.5
Standard day (ISA, 12°C)	1,749 ft	2,779 ft	2,295 ft	3,442 ft
Warm day (ISA +10)	2,949 ft	3,013 ft	2,421 ft	3,632 ft
Hot day (ISA +20)	4,149 ft	3,247 ft	2,548 ft	3,822 ft
35°C afternoon	4,569 ft	3,329 ft	2,592 ft	3,888 ft

Planning aid only. Even on a 35°C afternoon the longest runway (12/30, 6,898 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,888 ft needed). The percentages are a generic rule of thumb applied to one reference airplane, not certified performance data for any specific aircraft, and the runway size categories describe the runway, not your airplane's suitability. Verify with the approved flight manual before every flight.

03Nearby fields with 5,000 ft or more

Useful as alternates, as fuel stops when the price at KATY is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KBKX Brookings Regional Airport	39 nm S	6,000 ft
KMDS Madison Municipal Airport	54 nm S	5,000 ft
KHON Huron Regional Airport	56 nm SW	7,201 ft
KABR Aberdeen Regional Airport	63 nm NW	6,901 ft
KMML Southwest Minnesota Regional Airport - Marshall/Ryan Field	63 nm SE	7,221 ft
KMHE Mitchell Municipal Airport	78 nm SW	6,701 ft

04Jet A prices and FBOs at KATY

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KATY, the app flags a price stale after two weeks, and the route finder ranks every field within a corridor of your route by net savings after the cost of the extra cycle. Log a price at KATY or read what a fuel stop actually saves.

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