KISP · Long Island MacArthur Airport

ISLIP, NEW YORK · MEDIUM AIRPORT · SCHEDULED SERVICE

Elevation ft

Runways

7,006

Longest ft · 06/24

40.80N

73.10W

Long Island MacArthur Airport serves Islip, New York at 99 ft elevation with its longest runway, 06/24, at 7,006 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 KISP in JetDesk: live METAR, TAF, winds and runway verdict →

01Runways

Runway	Length × width	Surface	Lighting
06/24	7,006 × 150 ft	asphalt	lit
15R/33L	5,186 × 150 ft	asphalt	lit
15L/33R	3,175 × 75 ft	asphalt	unlit

02Density altitude and turboprop runway margins

Standard temperature at 99 ft is about 15°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, 15°C)	99 ft	2,457 ft	2,120 ft	3,181 ft
Warm day (ISA +10)	1,299 ft	2,691 ft	2,247 ft	3,371 ft
Hot day (ISA +20)	2,499 ft	2,925 ft	2,374 ft	3,560 ft
35°C afternoon	2,523 ft	2,930 ft	2,376 ft	3,564 ft

Planning aid only. Even on a 35°C afternoon the longest runway (06/24, 7,006 ft) covers a Meridian-class turboprop's landing distance with a 50 percent margin (3,564 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 KISP is high, or as the longer runway on a hot afternoon.

Airport	Distance	Longest runway
KFRG Republic Airport	15 nm W	6,833 ft
KFOK Francis S Gabreski Airport	22 nm E	9,002 ft
KHVN Tweed New Haven Airport	30 nm N	5,600 ft
KHPN Westchester County Airport	32 nm NW	6,549 ft
KJFK John F. Kennedy International Airport	32 nm W	14,511 ft

04Jet A prices and FBOs at KISP

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

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