Hi, Spirit Airlines flies out of Thurgood Marshall Airport at Baltimore/Washington International (BWI) on Concourse 1. Passengers can enjoy a number of facilities at the Spirit Airlines BWI Terminal, such as dining options, seating sections, and convenient security access. The main level houses Spirit Airlines’ check-in desks, while the roomy gate sections offer enough of space. In addition to a variety of transit choices, such as parking and shuttle services, visitors can utilize self-service ticketing kiosks. Spirit Airlines passengers are guaranteed a seamless travel experience thanks to the BWI Terminal’s efficient architecture.