Highway 1 North to Canadian Border
Porthill airstrip is a "Landing Rights" airport, and may not be available due to weather or other conditions. Check with local staff for conditions.
Pilots wishing to clear at Porthill (Eckhart International) airstrip must give a minimum 1 hour advance notice of their intended arrival.
Porthill 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.