Frontier Airlines operates from the South Terminal at Hartsfield-Jackson Atlanta International Airport (ATL). Passengers flying with Frontier Airlines Atlanta Ga Terminal should go to this terminal for check-in, baggage drop, and security screening. The terminal offers a variety of amenities, including restaurants, retail stores, and comfortable seating areas for passengers to relax before their flight. It's recommended to arrive at least two hours before your departure time to allow enough time for all procedures. Be sure to check your boarding pass and monitor the airport's flight displays for up-to-date gate information, as these may change.