Southwest Airlines operates primarily out of the domestic section of Hartsfield-Jackson Atlanta International Airport, specifically in Concourse C, which is part of the North Terminal. If you're flying with Southwest, you’ll enter through the North Terminal check-in area before heading to Concourse C via the airport’s Plane Train or pedestrian walkways. This concourse is exclusively dedicated to domestic flights, making it efficient for travelers flying within the United States. The ATL Terminal Southwest area offers a variety of amenities including fast-food chains, coffee shops, newsstands, and convenient seating areas, ensuring a comfortable pre-boarding experience. Passengers should arrive early, especially during peak hours, to allow time for check-in, security screening, and navigating this busy airport. When searching for ATL Terminal Southwest, keep in mind that signage throughout the airport is clear, and airport staff are readily available to assist with directions.