Knowing Atlanta airport tsa wait times is key to avoiding unexpected delays at security checkpoints. Atlanta, serving as Delta Airlines' main hub, experiences an exceptionally high daily influx of passengers. This results in security lines being unpredictable, particularly during holidays and major events. Travelers can keep track of current wait times, as the airport shares regular updates. While TSA PreCheck and CLEAR members can pass through quicker lines, general travelers may encounter extended delays. Wait times at the checkpoint can differ based on your departure terminal. By looking up TSA wait times at the Atlanta airport in advance, you can more precisely plan your arrival time. The majority of professionals advise travelers to show up for domestic flights at least two hours prior.