Air Canada TSA PreCheckFor qualified passengers, Air Canada provides TSA PreCheck, enabling a quicker and more effective security check procedure while traveling to the US. At participating U.S. airports, travelers can take advantage of quicker screening with TSA PreCheck. They can keep their laptops and liquids in their carry-on baggage and wear shoes, belts, and light coats. Passengers must mention their Known Traveler Number (KTN) in their Air Canada reservation in order to be eligible. Regular travelers would especially benefit from this service, which cuts down on anxiety and time spent in security queues.