Travelers who qualify and are departing from U.S. airports can speed security screening with Air Canada TSA Precheck program.You must have your Known Traveler Number (KTN) when scheduling your flight or adding it to your frequent flyer profile in order to utilize this service. You must also be enrolled in TSA PreCheck. TSA PreCheck allows you to get through security inspections more quickly without taking off your belts, shoes, or lightweight coats. Make sure the TSA PreCheck indicator is visible on your boarding pass so you can easily enter the designated security line. For frequent travelers looking for a more expedient airport experience, this service is really helpful.