From skyharbor.com
The Transportation Security Administration (TSA) PreCheck program is expanding to additional checkpoints at Phoenix Sky Harbor International.
The program, which has been in place at the Terminal 4 A Checkpoint for US Airways, is expanding to Alaska Airlines, American, Delta, Hawaiian, and United. Southwest Airlines is expected to offer PreCheck beginning in Mid-November.
http://skyharbor.com/airlinesflights...dSecurity.html