US flag Official website of the Department of Homeland Security

Del Bonita, MT, Montana - 3322

Port Type: 
Port of Entry
Port Code: 
Location Address: 
4071 Chalk Butte Road
41 miles north of Cut Bank on Hwy 213
Cut Bank, MT 59427-9109
Mailing Address: 
4071 Chalk Butte Road
Cut Bank, MT 59427-9109
(406) 336-2130
(406) 336-2137
Port Director: 
Raylee Johnson
Office Hours: 
Currently open!
Currently closed
9:00 am-5:00 pm MST
9:00 am-5:00 pm MST
9:00 am-5:00 pm MST
9:00 am-5:00 pm MST
9:00 am-5:00 pm MST
Directions to Port Office: 

Cut Bank, MT

Proceed north on Hwy 213. Port is 41 miles north of Cut Bank.

Supplemental Information: 

Summer Hours: June 1 – Sept. 14 : Open 8 a.m. to 9 p.m.

Winter Hours:  Sept. 15 – May 31: Open 9 a.m. to 6 p.m.


Reporting Requirements

Pilots wishing to clear at Frank Whetstone International Airport must give a minimum 1 hour advance notice of their intended arrival.

Weather Alert

Frank Wetstone International Airport is a "Landing Rights" airport and may not be available due to weather or other conditions. Check with local staff for conditions.

Special Instructions

Del Bonita is a Permit Port, which means that importations of cargo must be approved in advance by the Area Port of Sweetgrass.  Contact the Port of Entry for more information.

Facilities and Crossings: 

Cut Bank Airport:
Pilots must give a minimum 2-hour advance notice of their intended arrival. This notice can be submitted up to one week in advance; however, confirmation of arrival time prior to take-off is still required on day of arrival. This location uses on-call staff and requires the lead time for an Officer to respond. Voicemail and faxes are NOT acceptable means of delivering such notice. eAPIS is a separate filing to the CBP notification. Pilots wishing to arrive outside business hours of 9:00 a.m. – 5:00 p.m. must make PRIOR ARRANGEMENTS during business hours.