Hartsfield-Jackson Atlanta International Airport (ATL) is one of the busiest airports in the world, handling millions of passengers annually. Know About The Hartsfield-Jackson Atlanta International Airport Security Wait Times as travel resumes to pre-pandemic levels, many flyers wonder what to expect in terms of security wait times at ATL. Whether you’re flying domestically or internationally, understanding the factors that influence security wait times can help you navigate the airport smoothly and avoid unnecessary stress.