The recommended arrival times at ATL vary based on your flight type and travel season: Domestic Flights: At least 2 hours before scheduled departure International Flights: At least 3 hours ahead During Holidays or Peak Travel Times: Add an extra 30–60 minutes Still, these are just estimates. Your best bet? Check the tsa wait times atl before you leave for the airport and a... https://airlinesofficesworld.com/hartsfield-jackson-atlanta-international-airport-atl-tsa-wait-times/