Atlanta Hartsfield Airport Southwest Airlines Terminal is One of the busiest airports in the world. The Southwest Airlines terminal at ATL, located in Terminal South, offers passengers a vibrant and efficient experience. The terminal, which serves as a center for Southwest's extensive domestic and international aircraft network, is renowned for its welcoming atmosphere, modern amenities, and simple check-in process. Whether you're beginning a lengthy journey or taking a quick flight to a nearby city, the Southwest Airlines terminal at ATL is designed to make travel as simple and stress-free as possible.