Cut Bank Airport

General Aviation Airport Fact Sheet 
Cut Bank International Airport (KCTB) 
2705 Valier Hwy, Cut Bank, MT 59427
Regular Office Hours 
24 hours per day, 7 days per week 
Mountain Time (MT) 
 
 
  
 
 
 
 
Contact Information 
(406) 336-2130   CBP Del Bonita, MT Port of Entry
(406) 335-9610   CBP Sweetgrass, MT Port of Entry
KCTB_GAP@cbp.dhs.gov
Hours of Service for Entrance 
and Clearance 
Inspection services for the entrance/
arrival of aircraft at Cut Bank 
International Airport are generally 
available 7 days per week, 24 hours per 
day in accordance with the port's 
permission to land procedures.
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 
at least two hours prior to departure from the foreign port 
or place. 
Permission to land is granted with a tolerance of (+/-) 30 
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 
• Aircraft should park on the tarmac in the space marked "US CUSTOMS"
• Crew and passengers must wait in the area of the aircraft until a CBP Officer arrives.
• Once the aircraft is inspected the passengers will be processed in the terminal.
Special Procedures/Miscellaneous 
• Del Bonita Port of Entry regular office hours:
o Current Hours: M-F 0900-1700
• Sweetgrass Port of Entry operates 24 hours per day, 7 days per week.
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 
October 22, 2025 Publication Number KCTB-1025 
Cut Bank International Airport