Serving as a hub of convenience and connectivity, Southwest Airlines STL Terminal is a significant entry point for visitors in the Midwest. Southwest Airlines is a well-known airline at STL with a wide network of domestic flights and first-rate service. With the help of this in-depth guide, you will be able to navigate the Southwest Airlines STL Terminal with ease and enjoy a hassle-free travel experience. The main base of operations for Southwest Airlines is St. Louis Lambert International Airport's Terminal 2. Passengers can easily find their way to Terminal 2, which is designated for low-cost carriers, thanks to its accessible location and clear signage.