Passing through Hartsfield-Jackson Atlanta International Airport (ATL) – the busiest airport in the world requires a lot of planning, especially in security checks. Airport management and the Transportation Security Administration (TSA) recommend that all passengers report two hours before domestic flights and three hours before international flights, respectively. This enables them to have sufficient time not only to provide security but also to park, return rented cars, and check in with the airlines.
This guide is a detailed overview of the security wait times, location of the checkpoints, screening types, expedited services, and identification needs that ATL has that will help to make the trip very successful and stress-free.
Overview: Typical ATL Security Wait Times
Wait times in ATL Airport are not predetermined in terms of security. They vary according to the time of the day, the week of the week, and seasonal travelers. There are official categories below, which provide a practical plan of arrival:
| Wait Time Range | Traffic Level | Typical Conditions |
| 0 – 15 minutes | Minimal Delays | Late evenings and overnight hours. Shortest queues and fastest screening. |
| 15 – 30 minutes | Moderate Flow | Mid-mornings and early afternoons. Lines are present but move steadily. |
| 30 – 45 minutes | Heavier Traffic | Morning rush (5:00 a.m. – 9:00 a.m.). Business travelers and early flights converge. |
| 45 – 60 minutes | Peak Congestion | Before major holidays and long weekends. Factor in extra time for all pre-flight steps. |
| 60+ minutes | Extended Delays | Major travel surges: Thanksgiving, Christmas, summer peaks. Arrive well in advance. |
Security Wait Time By Checkpoint
The table below shows the average security wait time at the domestic terminal at each checkpoint:
| Checkpoint | Average Wait Time |
| Main Checkpoint | 12 – 14 minutes |
| North Checkpoint | 14 – 16 minutes |
| Lower North Checkpoint | 21 – 24 minutes |
| South Checkpoint (TSA PreCheck only) | 2 – 4 minutes |
International Terminal Checkpoint
| Checkpoint | Average Wait Time |
| International Terminal Main Checkpoint | Approximately 7 minutes |
Domestic Checkpoint Information & Hours of Operation
ATL has four security checkpoints in its Domestic Terminal. Both are tailored to fit particular categories of travelers and have their own schedule. By having this information beforehand, you will be able to choose the most effective one in terms of your departure time.
Main Checkpoint- Standard Screening
The main security checkpoint is the Main Checkpoint, which is open 24 hours/ 7 days a week. It offers a steady, 24-hour service, which is the surest bet when departing extremely early in the morning or late at night.
North Checkpoint – Standard and Priority Checkpoint.
The North Checkpoint is open between 4:00 a.m. and 10:00 p.m. and has normal lanes and priority checks. This checkpoint serves as an alternative to the Main Checkpoint to daytime commuters who wish to take a less busy road through security.
Lower North Checkpoint – Standard and CLEAR Checkpoint.
The Lower North Checkpoint is open between 3:30 a.m. and 11:00 p.m., and there are both standard and CLEAR passengers, who are enrolled in a biometric identity verification programme. This is a favorite checkpoint among frequent flyers who are sensitive to speed and efficiency.
South Checkpoint – TSA PreCheck and CLEAR Plus.
Available from 4:00 a.m. to 10:00 p.m., the South Checkpoint is dedicated to expedited screening. Members of TSA PreCheck or CLEAR Plus are privileged to much faster processing and touchless ID verification and have significantly shorter wait times. This is the shortest checkpoint among qualified travelers at ATL with an average wait of 2-4 minutes.
International Terminal Checkpoint
To the passengers who are leaving on international flights, a special security checkpoint is offered at the International Terminal Departures area. The screening time is as follows:
| Screening Type | Operating Hours |
| Standard Screening | 4:30 a.m. – 12:00 a.m. (midnight) |
| TSA PreCheck Lanes | 7:00 a.m. – 10:00 a.m. and 2:00 p.m. – 7:00 p.m. (subject to change) |
It is important to mention that the presence of TSA PreCheck lanes at the International Terminal could depend on the number of people each day and the time of day. It is advisable to check the latest information before your departure. Checkpoints are all ADA accessible. Individuals who have disabilities or have special screening needs are advised to call TSA Cares at least 72 hours prior to their flights.
Security Overview: Important Things to Be Aware Of
The following are some important guidelines to bear in mind before going through security at ATL:
- Peak Hours: There are the busiest security times in both domestic and international terminals, which are 5:00 a.m. to 9:00 a.m. daily and days before and after the public holidays and long weekends. Getting to these windows may save you a lot of waiting time.
- Access Rules: Ticketed passengers are the only people who are allowed to pass TSA checkpoints. In certain cases, airlines can offer gate passes: one adult who is traveling with an unaccompanied minor or a passenger in need of assistance.
- Prohibited Items: TSA has stringent rules regarding banned items in carry-on baggage and in checked baggage. Before packing, passengers are highly encouraged to look at the official list of prohibited items on tsa.gov to avoid checkpoint delays or detention of the bag.
REAL ID ACT— May 7, 2025.
By May 7, 2025, the TSA will have completely implemented the REAL ID Act at every security checkpoint in all airports in the United States. All passengers 18 years and above are now required to carry a REAL ID-compliant type of identification to clear security checks in domestic flights.
The acceptable types of identification are:
- A REAL ID-compliant state-issued driver’s licence or ID card (identifiable by a star marking in the upper portion of the card)
- A valid U.S. passport or passport card
- Military ID of the U.S.
Other identification documents approved by TSA.
It should be mentioned that TSA PreCheck membership does not relieve passengers of this requirement. This is mandatory for all travelers irrespective of their screening programme status.
State-issued IDs that are not compliant will no longer be accepted in boarding domestic flights. To make sure that your ID is accepted, you can refer to your state DMV or to the list of accepted documents on tsa.gov.
Expedited Screening Options
ATL facilitates two already proven programmes that aim at streamlining the security process to become quicker and more convenient to eligible travelers.
TSA PreCheck
TSA PreCheck provides enrolled passengers with expedited lanes, whereby passengers can leave their shoes, belts, and light jackets during the screening process. Carry-on bags can also contain laptops and liquids that are approved by TSA. This programme helps to greatly reduce wait times, especially during peak travel times. It can be enrolled via the TSA site and an in-person appointment and background check.
CLEAR Plus
CLEAR involves biometric authentication and verification (fingerprint or iris scan) of a traveler to identify him or her immediately, where the traveler can skip the verification process at the ID document desk and go through physical screening.
Registration can be done online or at special CLEAR pods at the North and South checkpoints of ATL. CLEAR Plus members with TSA PreCheck can also combine both to have the swiftest conceivable path through security.
The ATL Security Checkpoints
All ATL security checkpoints are completely ADA-compliant, meaning that passengers with disabilities or mobility issues will be able to move around the airport safely and in a dignified manner. There are special lanes and trained personnel to help when required.
To get further individual assistance, passengers can call TSA Cares at least 72 hours prior to their flight. This programme offers special services to passengers using medical equipment (e.g., insulin pumps or oxygen tanks), mobility aids, or other special needs during the screening process. Preparation in advance takes care of the fact that the day of travel is properly prepared.
Frequently Asked Questions
Parking at ATL may be time-consuming, particularly during high travel seasons. Parking, transfers to the terminal by the shuttle, and walking to your check-in area will take 30-45 minutes, which is recommended. Construction within this buffer will guarantee that you do not reach security in a hurry.
Yes. After clearing any security checkpoint, you can access any concourse and gate, either using the Plane Train or the walkways. One does not need to re-screen on transferring between concourses, and hence connecting between flights is easy.
Yes. The Domestic, as well as International terminals, have a variety of food and retail stores in the pre-security zones that are open to everyone, whether they are waiting to receive arriving passengers or are passengers awaiting to check in with the airline. After security, a wider variety of restaurants and shops are offered in the different concourses.
Absolutely. TSA employees know how to treat medical devices with care and professionalism. Customers who carry with them insulin pumps, oxygen tanks, mobility aids, etc., are highly advised to call TSA Cares at least 72 hours before the flight. This will have the right screening arrangements done beforehand, and the day will go as smoothly as possible.
Domestic traveler children below the age of 18 years who are accompanied by an adult are usually not supposed to show identification at the TSA checkpoints. Nevertheless, airlines might demand age verification documents in the case of lap infants, unaccompanied minors, or passengers purporting to be eligible to receive special fares. It is always prudent to carry with them proper documentation of children.