Southwest Airlines PHX Terminal flies out of Terminal 4 at Phoenix Sky Harbor International Airport (PHX). With its contemporary facilities and direct access to gates, this terminal offers Southwest passengers a quick and pleasant travel experience. While waiting for their flights, travelers can take use of a range of culinary options, retail stores, and lounging places. For easy navigation, the terminal also provides customer service support and visible signage. Southwest Airlines is a major travel hub because it provides both domestic and international flights from PHX. For quick travel, the terminal also has enough of security and baggage claim services.