Frontier Airlines PHX Terminal operates from Terminal 3 at Phoenix Sky Harbor International Airport (PHX). In this terminal, passengers can check in at counters or self-service kiosks in the main lobby on Level 1, then proceed to the security checkpoint nearby. Inside the terminal, travelers will find dining options like Starbucks, The Parlor, and Shake Shack, along with shopping outlets such as InMotion and Ironwood by Hudson. Families can make use of a children’s play area near Gate E5. Frontier flights usually depart from the E gates, though gate assignments can vary. Rideshares and rental car shuttles pick up outside Door 5, and there’s convenient parking nearby, including economy and garage options. The PHX Sky Train offers a fast, free transfer from the 44th Street station to Terminal 3.