SFO was one of several US airports that operated the Registered Traveler program from April 2007 until funding ended in June 2009 . This program let travelers who had paid for pre-screening pass through security checkpoints quickly . Baggage and passenger screening is operated by Covenant Aviation Security , a Transportation Security Administration contractor , nicknamed " Team SFO " . SFO was the first airport in the United States to integrate in-line baggage screening into its baggage handling system and has been a model for other airports since the September 11 attacks in 2001
September 11 attacks
September 11 attacks
San Francisco International Airport