Spirit Airlines provides a variety of low-cost flights out of Concourse A of the Baltimore/Washington International Airport. With check-in desks, ticket kiosks, and plenty of seating, the Spirit Airlines BWI Terminal has everything a passenger could possibly need. Before you board, there are restaurants and stores for any last-minute necessities. Although Spirit's check-in procedure is usually short, it is advised to arrive early because they frequently charge extra for things like baggage or seat preference. All things considered, BWI offers Spirit travelers a simple and convenient experience.