Long Island MacArthur Airport

General Aviation Airport Fact Sheet 
Long Island MacArthur Airport (KISP) 
100 Arrival Avenue, Ronkonkoma, NY 11779
Regular Office Hours 
7 days per week, 0900-2200 
Eastern Time (ET) 
 
 
  
 
 
 
 
Contact Information 
631) 753-2691   CBP KISP Office 
KISP_GAP@cbp.dhs.gov
Hours of Service for Entrance 
and Clearance 
Inspection services for the entrance/
arrival of aircraft at Long Island 
MacArthur Airport are available 7 
days per week, 0900-2200 in 
accordance with the port's 
permission to land procedures.  RSP 
is available if enrolled.
Commercial aircraft operators 
departing the U.S. must obtain an 
outbound clearance by contacting 
CBP directly. 
Permission to Land Procedures 
Pilots must secure permission to land by contacting CBP 
by email at KISP_GAP@cbp.dhs.gov prior to departure 
from the foreign port or place and at least 24 hours in 
advance of the anticipated arrival time at KISP (absent 
extenuating circumstances). 
Permission to land is granted with a tolerance of (+/-) 60 
minutes. If your ETA deviates outside these parameters, 
previously granted permission(s) are invalid and you 
must contact CBP to re-secure permission to land.  
Inspection Process 
• The KISP Control Tower will direct all foreign aircraft to be processed at the CBP facility
located next to the Modern Aviation building.
• CBP Officers will meet the aircraft on the ramp to begin inspection and no passenger or crew member
should depart the aircraft area prematurely.
• All crew and passengers will be brought into our facility to ensure that all CBP formalities and procedures
are followed.
• Passengers will be advised to present their formal documents such as passports, visas and other
necessary information to be processed.
• Crew will also need these documents as well as pilot's license, medical certificates, aircraft registration
and user fee decal.
• Passengers can depart directly from the CBP facility at the conclusion of the inspection.
Special Procedures/Miscellaneous 
• Permission to land is only granted by a CBPO via verbal or email confirmation.
• Passenger limit for general aviation aircraft may not exceed 20 passengers, unless prior approval has
been given.
• Reimbursable Services (559/RSA) is approved for certain companies.
• Please advise CBP if your aircraft is transporting live animals, weapons, hunting trophies, prohibited
food products and commercial imports or carnets.
NOTE: For further detailed information regarding national GA processing standards and procedures, 
please refer to the CBP Private Aircraft Arrival Information Document or contact GAsupport@cbp.dhs.gov 
November 21, 2025 Publication Number KISP-1125 
Long Island MacArthur Airport