Air canada tsa precheck for travelers departing from airports in the United States, Air Canada provides TSA PreCheck to eligible individuals. In order to escape the lengthy security line and to keep their laptops and other liquids in their luggage, travelers can stay wearing shoes, belts, and lightweight jackets. Passengers must provide their Known Traveler Number (KTN) in their reservation data in order to use TSA PreCheck with Air Canada. All Canadian nationals enrolled in TSA PreCheck, NEXUS, or Global Entry, as well as US citizens and their lawful permanent residents, can utilize this service. It makes traveling through airports more effective and seamless by drastically cutting down on the amount of time spent standing in security lines.