Spirit Airlines mostly flies from Concourse D of Hartsfield-Jackson Atlanta International Airport (ATL), which is located in the airport’s Domestic Terminal. The Domestic Terminal is separated into two sections: Terminal North (T-North) and Terminal South. Spirit Airlines Atlanta Airport Terminal passengers typically check in at Terminal North. After check-in and security, passengers walk to Concourse D, which is accessible via the Plane Train or the terminal’s walkways. Concourse D provides basic amenities such as food outlets, retail shops, and charging stations for travelers. Spirit Airlines, noted for its ultra-low-cost flights, has ticketing and check-in facilities on the domestic side of the airport, and its gate assignments in Concourse D are subject to change based on flight schedule.