What Terminal is Southwest Airlines at AUS? Southwest Airlines operates exclusively from Terminal 2 at Austin-Bergstrom International Airport (AUS). This terminal is tailored to provide a quick and convenient experience for Southwest travelers. With streamlined check-in processes and shorter security wait times, Terminal 2 helps passengers get to their gates faster. The terminal, while compact, offers essential amenities including comfortable seating, restrooms, and food options to make waiting more pleasant. Its design focuses on efficiency, reducing stress for travelers and ensuring smooth transitions from arrival to departure.