Long Island MacArthur Airport in Ronkonkoma, New York, United States, has been in service since 1960, with national flight service, flying approximately two million commercial ... See more passengers a year. Long Island MacArthur Airport, formerly known as Islip Airport (IATA: ISP, ICAO: KISP, FAA LID: ISP) the FAA designated LIMA an Official Metro Airport in early 2011, meaning it is now grouped with LaGuardia, JFK and Newark in travel and informational searches for New York airports, providing better exposure to the traveling public.