Spokane International Airport (GEG) Terminal is the operating base for Spirit Airlines GEG Terminal. Spirit Airlines offers convenient check-in alternatives, such as online and airport counter services, for its passengers. Numerous facilities, including dining options, retail stores, and cozy waiting rooms, are available at GEG Terminal. To ensure a seamless security check-in and a hassle-free Spirit Airlines travel experience at GEG, make sure to arrive early.