what terminal is southwest at phx ?

Southwest Airlines operates out of Terminal 4 at Phoenix Sky Harbor International Airport. Terminal 4 is the largest terminal at the airport and is located in the center of the airport complex. It is easily accessible and offers a wide range of amenities and services for passengers. Southwest Airlines has multiple gates within Terminal 4, and specific gate assignments may vary depending on the flight. Passengers flying with Southwest Airlines should check their boarding passes or consult the airport's information displays upon arrival to determine the exact gate number for their flight.