At Hartsfield-Jackson Atlanta International Airport (ATL), United Airlines is based out of Terminal T (South Terminal). In this United Airlines ATL Terminal , travelers flying with United may conveniently access their departure gates, security checkpoints, and check-in booths. A variety of facilities are also available at Terminal T, such as shops, restaurants, and cozy waiting spaces. United Airlines guarantees a smooth and convenient experience at ATL's Terminal T, whether you're traveling for business or pleasure.