If you're flying Southwest Airlines and need to know "What terminal is Southwest at MDW?" the answer is Terminal A. Chicago Midway International Airport (MDW) primarily operates Southwest Airlines flights from this terminal, making it easy for travelers to navigate through the airport. Terminal A at MDW is well-equipped with various amenities, including dining options, shops, and services, ensuring a comfortable experience for passengers. Whether you're arriving at or departing from Midway, Southwest Airlines passengers can rely on Terminal A for a seamless and efficient travel experience.