Frontier Airlines at Phoenix Sky Harbor International Airport (PHX) operates from Terminal 3. This terminal is equipped with a variety of amenities, including dining options, retail stores, free Wi-Fi, and charging stations for travelers' convenience. Terminal 3 features clear signage, making it easy to navigate between gates, check-in, and security areas. Ground transportation options like taxis, ride-sharing services, car rentals, and the Sky Train to other terminals and nearby areas are easily accessible, ensuring a smooth and efficient travel experience for Frontier Airlines passengers.