inexpensive tickets, travelers should expect to pay extra for amenities like checked baggage, seat preference, and onboard refreshments Frontier Airlines PHX Terminal basic facilities like eateries, retail stores, and free it is devoid of the upscale options seen in other terminals. Despite being quite simple to use, the terminal’s packed areas and little seats can make it difficult to maneuver during busy times. All things considered, Terminal 3 provides the airline’s low-budget passengers with effective, albeit basic, service.