Spirit Airlines PHX Terminal, Spirit Airlines operates from Terminal 4 at Phoenix Sky Harbor International Airport (PHX). This terminal provides a range of amenities including dining options, retail stores, and free Wi-Fi. For check-in, you can use Spirit's counters or self-service kiosks located in Terminal 4. Bag drop-off is also available for those who checked in online. Terminal 4 features convenient transportation links, such as rental car shuttles and ride-sharing services. The terminal's layout and services are designed to ensure a smooth travel experience, with ample facilities for both arriving and departing passengers.