from web site
Spirit Airlines BWI Terminal provides reasonably priced flights to a number of local and international locations, operating out of Terminal 1 at Baltimore/Washington International Thurgood Marshall Airport (BWI). The terminal has self-service kiosks, check-in booths, and access to basic facilities. There are meal options, places to sit, and restrooms close by for travelers. Convenient security checkpoints ensure a seamless boarding experience. Focusing on low-cost travel, Spirit offers a basic experience while making sure that travelers have all the amenities they need for a hassle-free trip through BWI.