Southwest Airlines operates exclusively from Terminal 4 at Phoenix Sky Harbor International Airport (PHX). Terminal 4 is the airport’s busiest terminal, hosting both domestic and international flights. It’s modern, well-organized, and offers a wide range of amenities to travelers.
Southwest gates are located primarily in the A and B concourses of Terminal 4.
The B gates (B1–B28) are most commonly used by Southwest, though some flights may also depart from the A concourses (A1–A30) depending on operational needs.
Southwest terminal phx passengers should always check their boarding pass or the airport monitors for the most accurate gate assignments.
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