At Hartsfield-Jackson Atlanta International Airport (ATL), Southwest Airlines is based out of Terminal South. With a range of facilities like dining options, seating areas, and convenient gate access, this Southwest Airlines ATL Terminal provides a seamless, effective travel experience. Southwest guarantees a comfortable flight whether you’re traveling domestically or abroad. Clear signage, welcoming staff, and speedy security checks are all to be expected, making it an excellent place to start your journey. Before you leave for your flight, be sure to check your gate information for any updates.