Operating out of Phoenix Sky Harbor International Airport's Terminal 3 is Frontier Airlines PHX Terminal Both domestic and international flights are served by this terminal, which offers passengers a practical area. Self-service check-in kiosks, quick security checks, and friendly staff are all features of the terminal that guarantee a seamless travel experience. There are several shop establishments for last-minute requirements in addition to a variety of dining alternatives for passengers, ranging from sit-down restaurants to quick snacks. Throughout the terminal, there are cozy lounging sections and charging stations, making it simple for passengers to unwind before their flights. Connecting Terminal 3 to other terminals is the Sky Train.