What Terminal is Southwest Airlines at DTW? Southwest Airlines operates out of the North Terminal (also known as the Warren Cleage Evans Terminal) at Detroit Metropolitan Wayne County Airport (DTW). This modern terminal offers travelers a convenient and efficient experience, featuring streamlined check-in counters, spacious seating areas, and a variety of dining and shopping options. Passengers flying with Southwest can enjoy quick access to security checkpoints and baggage claim, making the travel process smoother. With friendly service and well-maintained facilities, the North Terminal provides a comfortable environment for Southwest Airlines passengers at DTW.