Spirit Airlines PHX Terminal , Spirit Airlines operates from Terminal 4 at Phoenix Sky Harbor International Airport (PHX). This terminal offers a range of convenient services to enhance your travel experience. Inside Terminal 4, you'll find Spirit Airlines check-in counters, self-service kiosks, and baggage claim facilities. The terminal is well-equipped with various dining and shopping options, as well as amenities like free Wi-Fi, charging stations, and comfortable seating. Whether you’re catching a flight or waiting for a connection, Terminal 4 provides a modern and efficient environment to ensure a smooth journey with Spirit Airlines. Enjoy your travel through one of Phoenix’s busiest and most convenient terminals.