I had a seamless and effective interaction with Frontier Airlines PHX Terminal. The process was made simple by the staff's friendliness and prompt check-in. The process of dropping off bags went smoothly and security lines moved more quickly than anticipated. There was easy access to food options and lots of cozy sitting around the terminal. It was a stress-free experience since despite the congested terminal everything happened on schedule. I had all I needed for a simple, reasonably priced trip thanks to Frontier's no-frills approach at PHX.