Flight School Security Act of 2015

Revises requirements with respect to the training of aliens and other individuals designated by the Transportation Security Administration (TSA) on behalf of the Department of Homeland Security in the operation of certain aircraft.

Authorizes a flight instructor, pilot school, or aviation training center to provide training in the operation of an aircraft with a takeoff weight of more than 12,500 pounds to an individual who does not hold a valid Federal Aviation Administration airman's certification only if: (1) that individual has been checked against the terrorist watchlist by the TSA to determine if he or she poses a threat to aviation or national security or a threat of terrorism, and (2) the TSA determines that the individual does not pose a threat that warrants denial of access to such training.