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Knowing the ATL airport security wait times can make your journey through Hartsfield-Jackson Atlanta International Airport much smoother. ATL is the busiest airport in the world, handling thousands of travelers daily, and at peak hours, security queues can get long. The longest wait periods are usually found on morning and evening flights. Depending on the time of day, the average wait time for security at Atlanta's airport is between 20 and 45 minutes. In general, procedure is quicker for travelers who have TSA PreCheck or CLEAR. To aid with your planning, you can access real-time updates via travel apps and the internet. To prevent delays at the checkpoint, it is advisable to come early. Keeping track of ATL airport security wait times guarantees a stress-free airport experience whether you're traveling domestically or abroad.