Baltimore/Washington International Thurgood Marshall Airport (BWI)'s Spirit Airlines BWI Terminal is where you begin saving money on travel. Concourse D is the location, and it provides a simple, uncomplicated experience to get you to your destination. You can anticipate helpful staff who are available to help with check-in and boarding, as well as local dining and retail alternatives to kill time before your departure. Spirit Airlines operates from BWI's state-of-the-art terminal, making inexpensive travel simple and convenient. visit us.... https://www.terminalfind.com/spirit-airlines/spirit-airlines-bwi-terminal-baltimore-washington-international-thurgood-marshall-airport/