Operating out of Phoenix Sky Harbor International Airport's (PHX) Terminal 3, Frontier Airlines Phoenix Terminal provides travelers with an easy and affordable travel experience. Modern amenities, efficient security checks, and a range of pre-flight dining and retail options are all hallmarks of the Frontier Airlines Phoenix Terminal. Terminal 3 makes traveling with Frontier Airlines easy and hassle-free with its well-marked signs and effective baggage services. This terminal guarantees a comfortable beginning to your travel arrangements, whether you're leaving for a short vacation or a cross-country journey.