Southwest Airlines operates out of Concourse C at Hartsfield-Jackson Atlanta International Airport (ATL). This concourse, part of the Domestic Terminal, serves as the hub for Southwest Airlines ATL Terminal operations. It features modern amenities, including dining options, retail shops, and comfortable seating areas. Passengers can access convenient check-in counters and efficient security checkpoints. The concourse is connected to the rest of the airport via the Plane Train, ensuring smooth transfers. Travelers are advised to arrive at least two hours before their flight for a seamless experience.