Dual citizens (of Canada and some other country) may have difficulty boarding a plane to Canada with their non-Canadian passport and their Canadian citizenship card. The Canadian citizenship card is not a travel document.

Cuba does not recognize dual citizenship. Cuban-Canadians must enter Cuba on their Cuban passport. They must also show a valid Canadian passport in order to return to Canada.

Under Cuban law, the Government of Canada cannot provide consular services to Canadian nationals or to permanent residents of Canada with Cuban citizenship. Travellers born in Cuba (regardless of current citizenship) should contact a Cuban government office in Canada to ensure compliance with Cuban regulations. Failure to do so may result in being refused entry into Cuba, being detained upon entry, or being refused departure by Cuban immigration authorities.