KHLN · Helena Regional Airport

HELENA, MONTANA · MEDIUM AIRPORT · SCHEDULED SERVICE

3,877

Elevation ft

Runways

9,000

Longest ft · 09/27

46.61N

111.98W

Helena Regional Airport serves Helena, Montana at 3,877 ft elevation with its longest runway, 09/27, at 9,000 by 150 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 KHLN in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
09/27	9,000 × 150 ft	asphalt	lit
05/23	4,644 × 75 ft	asphalt	lit
16/34	2,989 × 75 ft	asphalt	lit

02Density altitude and turboprop runway margins

Standard temperature at 3,877 ft is about 7°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, 7°C)	3,877 ft	3,194 ft	2,519 ft	3,779 ft
Warm day (ISA +10)	5,077 ft	3,428 ft	2,646 ft	3,968 ft
Hot day (ISA +20)	6,277 ft	3,662 ft	2,772 ft	4,158 ft
35°C afternoon	7,207 ft	3,844 ft	2,870 ft	4,306 ft

Planning aid only. Even on a 35°C afternoon the longest runway (09/27, 9,000 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (4,306 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 KHLN is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
K38S Deer Lodge City County Airport	35 nm W	5,800 ft
KBTM Bert Mooney Airport	45 nm SW	9,000 ft
K7S6 White Sulphur Springs Airport	45 nm E	6,100 ft
K3U3 Bowman Field	46 nm SW	6,011 ft
K9S5 Three Forks Airport	47 nm S	5,100 ft
KGTF Great Falls International Airport	58 nm NE	10,502 ft

04Jet A prices and FBOs at KHLN

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

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