The rdu airport southwest airlines terminal is located in Terminal 1 at Raleigh-Durham International Airport. Serving as a key gateway for travelers in the Research Triangle region, the rdu airport southwest airlines terminal offers a highly efficient and easily navigable environment. Passengers utilizing this terminal can access streamlined ticket counters, self-service check-in kiosks, and rapid security checkpoints. Inside, the terminal features comfortable seating, charging stations, and a selection of local North Carolina dining options. Terminal 1 simplifies your trip by housing all domestic Southwest operations in a single, compact concourse.