Overview & Role
Long Island MacArthur Airport (KISP/ISP) is the principal commercial and business-aviation airport for Suffolk County, located in Ronkonkoma roughly 50 miles east of Manhattan. Owned and operated by the Town of Islip, it offers a far less congested alternative to JFK and LaGuardia for travelers headed to the Hamptons corridor, the North Fork, and central Long Island, with on-field U.S. Customs and 24-hour airport operations.
Runway Capability
The 7,006-foot Runway 6/24 makes ISP a genuine heavy-jet-capable field. Light, midsize, and super-midsize jets operate with comfortable margins, and ultra-long-range aircraft such as the Gulfstream G650 and Bombardier Global 7500 can depart at meaningful payloads under standard conditions. The 5,186-foot 10/28 and the 15/33 pair add wind coverage so crosswind limits rarely restrict operations.
Charter Considerations
ISP is an efficient origin and destination for charter into Long Island. Because it is a Part 139 airport with full FBO infrastructure at Modern Aviation, ground handling for transient business jets is straightforward. The Jet Finder sources Part 135 aircraft positioned around the New York metro — including Teterboro and Westchester — to minimize repositioning costs on flights into KISP.
Customs & International Access
U.S. Customs and Border Protection maintains a presence at Long Island MacArthur, making it one of the few Long Island airports able to clear international general-aviation arrivals directly. CBP availability is scheduled rather than around the clock, so international itineraries should be coordinated in advance through the FBO and CBP to confirm clearance windows and any user fees.
Noise & Nighttime Restrictions
ISP enforces a noise-abatement program with a nighttime restriction roughly between 11:00 PM and 6:30 AM local, during which louder aircraft (above defined approach/takeoff decibel thresholds) face limitations or fees, with exceptions for emergencies and certain weather delays. Runway 15L/33R is closed to night takeoffs and landings. Quiet, modern business jets are generally well within limits, but late-night operators should verify current procedures.
Safety & Planning
The Jet Finder books charter exclusively through FAA Part 135 certified operators whose crews meet federal duty, rest, and recurrency standards. KISP's ILS and RNAV (GPS) approaches plus a full control tower support reliable all-weather access. Winter frontal systems can drop ceilings to IFR minimums, so instrument currency and realistic alternate planning are recommended for the colder months.
Regional Context
Within the Long Island and New York metro network, ISP complements Republic Airport (KFRG) in Farmingdale, about 15 NM west, and the smaller Brookhaven (KHWV) and Calverton fields to the east. For travelers whose final destination is central or eastern Long Island, ISP's longer runways, customs, and tower service make it the strongest business-aviation choice east of Republic.