Jackson Hartsfield With thousands of departures every day, Atlanta International Airport is among the busiest airports in the world. The Domestic Terminal and the International Terminal are the airport's two primary terminals. Here is some information about Atlanta international airport departures. There are two sides to the Domestic Terminal: North and South. One of the biggest carriers at the airport, Delta Air Lines, is the main user of the North Terminal. Other domestic carriers like Southwest, American, United, and others are served by the South Terminal. Depending on your airline, you must check in at the designated area of the terminal while traveling domestically. Following your check-in and luggage drop-off, you will go through security screening. You will enter the concourses, designated A through T, after passing through security. In addition to gates where you board your aircraft, these concourses offer a variety of services like dining options, retail stores, and seating sections. Maynard H. Jackson Jr. International Terminal, also known as Terminal F, handles all international flights. This terminal has its own check-in, security, and customs facilities, separate from the Domestic Terminal. It also offers a range of amenities, including duty-free shops, restaurants, and lounges for international travelers. To ensure a smooth departure, it's recommended to arrive at least two hours before a domestic flight and three hours before an international flight. This gives you enough time to check in, go through security, and reach your gate. You can check real-time flight status, security wait times, and gate information on the airport's website or mobile app. Planning ahead and arriving early can help make your travel experience more relaxed and stress-free.