As defined by Transport Canada, an international airport:
there are 13 airports designated as international by Transport Canada:
The following airports are listed in the Canada Flight Supplement, or Water Aerodrome Supplement, published by Nav Canada as an airport of entryâÂÂbut are not classified as international airports. All these airports, with the exception of military airports, have a Canada Border Services Agency person available but they may not be available 24 hours a day and may only be open part of the week.
The following airports operate using the CANPASS system. The CANPASS Corporate Aircraft and CANPASS Private Aircraft allows company and private aircraft that frequently fly directly into Canada from the United States to access more airports and receive expedited clearance. Enrolment in each program costs for a validity period of five years.
The following airports are listed as airports of entry for cargo