Long Island MacArthur Airport
Daylight today(Aug 29, 2026, local time)
About 13h 14m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Long Island MacArthur Airport
Long Island MacArthur Airport, formerly known as Islip Airport, is a public airport located in Ronkonkoma, New York, within the Town of Islip in Suffolk County, on Long Island. Covering 1,311 acres (531 ha), the airport was established in 1942, activated in 1943, and began operating as a commercial airport in 1960. It has three runways and two helipads.
Summary from Wikipedia, photo via Wikimedia Commons, licensed under CC BY-SA.
Live weather
KISPNOTAMs
KISPReference only — not an official briefing. Always obtain a certified briefing (e.g. 1800wxbrief.com / your AIS) before flight.
NOTAM data via the FAA NOTAM system.
Live departures & arrivals
Flight data by AeroDataBox. Times are estimates — not for navigation; confirm with the airline.
Where you can fly from here
Current scheduled routes & daily frequency by AeroDataBox. Approximate — confirm bookable schedules with the airline.
Live traffic nearby
Aircraft currently within ~40 nm, from live ADS-B. Positions are approximately real-time — not for navigation.
Live ADS-B by adsb.lol & the OpenSky Network. Not for navigation.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (4)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 06 / 24 | 7,006 ft / 2,135 m | 150 ft | Asp | Lighted | Open |
| 15R / 33L | 5,186 ft / 1,581 m | 150 ft | Asp | Lighted | Open |
| 10 / 28 | 5,034 ft / 1,534 m | 150 ft | Asp | Lighted | Closed |
| 15L / 33R | 3,175 ft / 968 m | 75 ft | Asp | Unlit | Open |
Radio frequencies (9)
| Type | Description | Frequency |
|---|---|---|
| A/D | NEW YORK APP/DEP | 118.000 MHz |
| ATIS | ATIS | 120.725 MHz |
| CLD | CLNC DEL | 121.850 MHz |
| CTAF | CTAF | 119.300 MHz |
| GND | GND | 135.300 MHz |
| OPS | GUARD OPS | 45.000 MHz |
| RDO | NEW YORK RDO | 122.600 MHz |
| TWR | TWR | 119.300 MHz |
| UNIC | UNICOM | 122.950 MHz |
Services & operations
Long Island MacArthur Airport provides direct flights to multiple destinations with efficient facilities and services.
From the airport’s official website — details may change, so confirm with the airport. Official site
Navaids(1)
Airlines & destinations
Route data from OpenFlights — historical and may be out of date. Check current schedules.
Instrument procedures & charts
Airport diagram (1)
Instrument approaches (4)
Departure procedures (SIDs) (1)
Arrivals (STARs) (4)
Takeoff & alternate minimums (2)
Runway hot spots (1)
Land-and-hold-short (LAHSO) (1)
Showing 14 of 18 FAA procedures on this overview. Always fly the current, official chart. Full charts page.
Airspace in this area(3)
| Name | Class | Type | Floor | Ceiling |
|---|---|---|---|---|
| LONG ISLAND MACARTHUR AIRPORT CLASS C | Class C | Controlled | 1500 ft MSL | 4100 ft MSL |
| LONG ISLAND MACARTHUR AIRPORT CLASS C | Class C | Controlled | GND | 4100 ft MSL |
| LONG ISLAND MACARTHUR AIRPORT CLASS E2 | Class E | Controlled | GND | 17999 ft MSL |
Approximate bounding-box match from OpenAIP · all United States airspace. Reference only — consult official charts for exact boundaries and status.
Weather by month
Share of VFR / marginal-VFR / IFR / low-IFR conditions by month over the last 8 years, with the prevailing wind and typical density altitude. Historical climatology — not a forecast.
Prevailing wind: SW (from about 225°), on 10% of observations, averaging 8 kt.
| Month | VFR / MVFR / IFR / LIFR | % VFR | Median DA |
|---|---|---|---|
| Jan | 77% | -1,582 ft | |
| Feb | 74% | -1,584 ft | |
| Mar | 76% | -1,065 ft | |
| Apr | 76% | -518 ft | |
| May | 73% | 52 ft | |
| Jun | 78% | 794 ft | |
| Jul | 76% | 1,187 ft | |
| Aug | 78% | 1,059 ft | |
| Sep | 78% | 614 ft | |
| Oct | 76% | -18 ft | |
| Nov | 85% | -821 ft | |
| Dec | 74% | -1,363 ft |
VFR MVFR IFR LIFR· density altitude ranges ~-1,584–1,187 ft through the year· Source: NWS/IEM ASOS archive.
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Obstacle | — | 59 ft | — |
| Obstacle | — | 49 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Long Island MacArthur Airport.
Frequently asked questions
What is the ICAO code for Long Island MacArthur Airport?
The ICAO code for Long Island MacArthur Airport is KISP, and its IATA code is ISP.
Where is Long Island MacArthur Airport located?
Long Island MacArthur Airport is medium airport located in Islip, United States, at an elevation of 99 ft (30 m).
How many runways does Long Island MacArthur Airport have?
Long Island MacArthur Airport has 4 runways, the longest being 7,006 ft / 2,135 m.
Which airlines fly to Long Island MacArthur Airport?
Airlines historically serving Long Island MacArthur Airport include AirTran Airways, Alaska Airlines, Allegiant Air, American Airlines, Peninsula Airways, Southwest Airlines, among 7 carriers (based on OpenFlights route data, which may be out of date).
How many destinations are served from Long Island MacArthur Airport?
Historical data lists 9 nonstop destinations from Long Island MacArthur Airport. Always check current schedules.
What time zone is Long Island MacArthur Airport in?
Long Island MacArthur Airport is in the America/New York time zone (UTC-04:00).
What is the magnetic variation at Long Island MacArthur Airport?
The magnetic variation (declination) at Long Island MacArthur Airport is approximately 12.9° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Long Island MacArthur Airport?
The nearest airport to Long Island MacArthur Airport is Bayport Aerodrome (23N), about 3.2 nm to the se, followed by Brookhaven Calabro Airport and Republic Airport.
Is the information on this page suitable for flight planning?
No. Long Island MacArthur Airport data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.