Frontier Airlines operates a robust schedule of flights from Phoenix to a variety of destinations, including major cities like Denver, Las Vegas, and Chicago, as well as vacation spots like Cancun and Orlando. The airline's ultra-low-cost business model allows passengers to customize their travel experience by choosing from various add-on services, such as seat selection, baggage opti... https://airlines-offices.com/what-terminal-is-frontier-airlines-at-phx/