KU12 · Stanford Field

ST ANTHONY, IDAHO · SMALL AIRPORT

4,966

Elevation ft

Runway

4,500

Longest ft · 04/22

43.95N

111.68W

Stanford Field serves St Anthony, Idaho at 4,966 ft elevation with its longest runway, 04/22, at 4,500 by 50 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 KU12 in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
04/22	4,500 × 50 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 4,966 ft is about 5°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, 5°C)	4,966 ft	3,407 ft	2,634 ft	3,951 ft
Warm day (ISA +10)	6,166 ft	3,641 ft	2,761 ft	4,141 ft
Hot day (ISA +20)	7,366 ft	3,875 ft	2,887 ft	4,331 ft
35°C afternoon	8,558 ft	4,107 ft	3,013 ft	4,519 ft

Planning aid only. On a 35°C afternoon the longest runway (04/22, 4,500 ft) is within 20 percent of the 1.5x landing figure for a Meridian-class turboprop (4,519 ft). Plan hot-day departures for the morning and check the POH. 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 KU12 is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KDIJ Driggs/Reed Memorial Airport	28 nm SE	7,301 ft
KIDA Idaho Falls Regional Airport	31 nm SW	9,002 ft
KJAC Jackson Hole Airport	46 nm SE	6,300 ft
KWYS Yellowstone Airport	51 nm NE	8,400 ft
4U9 Hyak Airbase	65 nm NW	7,002 ft

04Jet A prices and FBOs at KU12

No public API publishes FBO fuel prices, so JetDesk does not guess. Pilots and crews log the price they actually paid at KU12, 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 KU12 or read what a fuel stop actually saves.

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