Atlanta Airport Security Wait Times & ATL Queue Guide 2026
Hartsfield-Jackson Atlanta International Airport (ATL/KATL) security wait times by checkpoint and time of day. Queue estimates for the Domestic Terminal and International Terminal, TSA PreCheck and CLEAR pricing, CT scanner deployment status, peak hours and the quietest windows at the world’s busiest airport, which handled 108.1 million passengers in 2024.
Atlanta Airport Security Wait Times Today
The Atlanta Airport security wait time estimates below show the typical ATL queue at each checkpoint for this hour and day of week. Hartsfield-Jackson Atlanta International Airport (ATL/KATL) has been the world’s busiest airport by passenger volume every year since 1998 except 2020. Unlike most large airports, ATL operates a fishbone layout with two separate terminal buildings and seven airside concourses, all connected by the underground Plane Train automated people mover. Security wait times vary by checkpoint, time of day, major holiday periods, and whether your departure is domestic or international.
How Long Is Security at Atlanta Airport?
Security wait times at Hartsfield-Jackson depend significantly on which checkpoint you use and what time you arrive. The airport operates three main TSA security checkpoints: Domestic North, Domestic South and the International Terminal. During quiet midweek windows from 10:00 to 15:00, most passengers clear a domestic checkpoint in 10 to 20 minutes in the standard lane. During the morning rush from 07:00 to 09:00, waits of 30 to 50 minutes are common in the standard lane, and on busy holiday travel days queues have extended well beyond an hour. The afternoon peak from 16:00 to 19:00 is a second daily pressure point that catches many travelers off guard, particularly at the Domestic South checkpoint which handles the high volume of Delta departures.
TSA PreCheck members at ATL typically clear the dedicated PreCheck lane in under 10 minutes at most hours. CLEAR members who also hold PreCheck get the fastest experience overall: CLEAR handles the identity verification step at a biometric kiosk, sending you directly to the physical screening area, and PreCheck handles the screening itself with no shoe removal and no laptop or liquid removal required. The two programs complement each other well at ATL and together represent the most effective way to reduce your security time at the world’s busiest airport.
The Plane Train journey from the domestic security checkpoint to your concourse adds 10 to 20 minutes to your pre-flight time depending on which concourse your gate is in. Concourses T, A and B are closest to security; Concourses D and E are the furthest on the domestic side. The International Terminal and Concourse F require either a Plane Train ride or the free inter-terminal shuttle from the domestic terminal. Factor this into your total airport arrival time, especially during the busiest departure windows.
Atlanta Airport Security History and Improvements
Hartsfield-Jackson Atlanta’s security operation handles a passenger volume that no other single airport in the world matches. With over 108 million passengers in 2024 spread across three active checkpoints, the pressure on TSA staffing and lane availability during peak periods is significant. The morning wave of Delta hub connections combined with leisure and business departures across all concourses creates a consistent 07:00 to 09:00 crunch that has been a feature of ATL since the airport’s volume recovery from the pandemic.
The most significant hardware investment in recent years is the phased rollout of CT scanner technology at ATL checkpoints. Installation began in 2022 at the Domestic South checkpoint and has continued into 2025 and 2026 across the Domestic North and International Terminal checkpoints. CT scanners create a 3D image of bag contents, allowing TSA officers to inspect carry-on luggage without requiring passengers to remove laptops. Passengers in CT-equipped lanes can leave electronics in their bag. However, the TSA 3-1-1 liquid rule remains in force at all ATL checkpoints: containers must be 3.4 ounces or 100ml or less, all packed in a clear quart-sized resealable bag. This applies regardless of scanner type. TSA PreCheck members are the main exception, as PreCheck allows liquids and laptops to stay in the bag under that program’s rules.
A further security change rolled out in July 2025 allows passengers to keep their shoes on at checkpoints equipped with newer imaging technology capable of scanning footwear in place. This applies at selected ATL lanes. Follow staff instructions at the checkpoint as not all lanes have this capability, and TSA officers will direct passengers accordingly.
Atlanta Airport Security Wait Times by Checkpoint
Hartsfield-Jackson operates two physically separate terminal buildings. Your security checkpoint is determined by your terminal and airline. The Domestic Terminal is divided into a North side and a South side by a central atrium, each with its own TSA checkpoint. The International Terminal has its own separate checkpoint. All three checkpoints connect to the same Plane Train system that serves all seven airside concourses. Treat the International Terminal as a separate operation: passengers on international flights should check in and clear security there, not at the Domestic Terminal.
Domestic Terminal North Security
10 to 20 minutes off-peak on weekdays. During the 07:00 to 09:00 morning peak and the 16:00 to 19:00 afternoon peak, expect 25 to 40 minutes in the standard lane. Major holiday travel periods push this toward 45 to 60 minutes.
The Domestic Terminal North checkpoint serves passengers flying on non-Delta carriers. The north side of the Domestic Terminal has its own baggage claim, check-in counters and curbside area, separated from the Delta south side by a central atrium. After clearing security, all passengers from both sides of the domestic terminal access the same Plane Train network to reach their concourse. Concourses T and A are the closest from the security exit; Concourses D and E are the furthest and require a full Plane Train ride of 10 to 15 minutes from the checkpoint. The CLEAR kiosk and TSA PreCheck lanes are available at the North checkpoint. Southwest Airlines is the second largest carrier at ATL and operates primarily from Concourse C’s south side, which is reached via the Plane Train from the domestic terminal.
Domestic Terminal South Security (Delta)
12 to 22 minutes off-peak on weekdays. During peak periods the Domestic South checkpoint carries the heaviest load at ATL due to Delta’s dominant share of ATL traffic. Expect 30 to 50 minutes in the standard lane during the 07:00 to 09:00 and 16:00 to 19:00 peaks. Summer and holiday periods can extend this to 60 minutes or beyond.
The Domestic South checkpoint is Delta’s primary security access point at Hartsfield-Jackson and the highest-volume single checkpoint at the airport. Delta Air Lines operates out of all seven concourses at ATL and accounts for the majority of the airport’s daily departures, making this checkpoint consistently the most congested during peak periods. The south checkpoint received a significant expansion in 2020 funded in part by a Delta contribution, adding automated screening lanes with CT scanners and improved bin return systems. Despite this capacity, the concentration of Delta morning bank departures from 06:00 to 09:00 still produces substantial queues in the standard lane. TSA PreCheck and CLEAR are available at the south checkpoint and are strongly recommended for Delta passengers flying during morning and afternoon peak windows. Delta Sky Priority, available to Diamond Medallion, Platinum Medallion and business class ticket holders, provides priority check-in and boarding benefits but security access follows the standard TSA program lanes rather than a separate airline-managed lane.
International Terminal Security (Concourse F)
8 to 18 minutes off-peak. International departure banks produce queues of 20 to 35 minutes during morning peak windows. Lower overall volume than the domestic checkpoints but concentrated into specific departure windows, particularly for transatlantic and transpacific morning departures.
The Maynard H. Jackson Jr. International Terminal at Hartsfield-Jackson is the dedicated facility for all international departures and serves as the arrivals hall for all international passengers entering the United States through Atlanta. The terminal opened in 2012 and connects to Concourse F, the airport’s newest concourse and the only one capable of accommodating an Airbus A380. Concourse F gates handle most non-Delta international carriers; Delta operates its own international routes from the same concourse area. Concourse E, reached via the Plane Train from Concourse F, handles additional international and overflow traffic including Aeromexico. After clearing security at the International Terminal, passengers proceed to passport control before reaching the departure gate area. Allow at least 20 minutes for this step during normal operations and up to 40 minutes during busy international departure windows. The International Terminal has its own check-in hall, separate from the Domestic Terminal, and is accessed via its own entrance from Interstate 75 at Exit 239. A free shuttle connects the International Terminal to the Domestic Terminal ground transportation area, running 24 hours a day with a journey time of approximately 15 minutes.
Atlanta Airport Security Peak Hours and Best Times to Fly
The two busiest windows for Atlanta Airport security are 07:00 to 09:00 (the Delta hub morning departure bank combined with leisure and connecting traffic) and 16:00 to 19:00 (the afternoon departure surge across all airlines). Fridays and Sundays are the most congested single days at ATL. Holiday travel produces the worst conditions of all: Thanksgiving week is typically the single most congested period of the year, followed closely by Christmas and New Year travel, Memorial Day weekend and Labor Day weekend. These periods add 30 to 60 percent to typical wait times across all three checkpoints.
The quietest windows at Hartsfield-Jackson are 10:00 to 15:00 on weekdays and after 20:00 on any day of the week. A Tuesday or Wednesday midday departure during a non-holiday period is the most relaxed combination available at ATL in the standard lane. Early morning pre-peak windows from 05:00 to 07:00 are also relatively light compared to the 07:00 to 09:00 rush, though this is highly dependent on which morning bank of departures is operating that day.
| Time of Day | Typical ATL Domestic Security Wait | Status |
|---|---|---|
| 04:00 to 05:00 | Under 12 min | Quiet |
| 05:00 to 07:00 | 10 to 18 min | Moderate |
| 07:00 to 09:00 | 30 to 50 min (longer on holidays) | Peak |
| 09:00 to 10:00 | 20 to 30 min | Busy |
| 10:00 to 15:00 | 10 to 20 min | Quiet |
| 15:00 to 16:00 | 15 to 25 min | Moderate |
| 16:00 to 19:00 | 25 to 45 min | Busy |
| 19:00 to 20:00 | 15 to 25 min | Moderate |
| 20:00 to 23:00 | 8 to 18 min | Quiet |
| 23:00 to 03:59 | Under 12 min | Quiet |
Atlanta Airport Priority Security Options: TSA PreCheck and CLEAR
Unlike European airports that sell per-trip fast track passes, priority security at Hartsfield-Jackson runs entirely through the TSA program system. The two main options are TSA PreCheck and CLEAR, which can be used independently or combined for the fastest possible experience. There is no separately managed airline priority security lane at ATL beyond these TSA programs. Business class and first class ticket holders who are not enrolled in PreCheck or CLEAR queue in the standard lane.
Recommended Arrival Times at Hartsfield-Jackson Atlanta Airport
The standard guidance from Hartsfield-Jackson and TSA is to arrive at least 2 hours before domestic departures and 3 hours before international departures. At ATL, the 2-hour domestic guideline assumes a normal security wait and Plane Train time to your concourse. If you are departing from Concourse E, which is the furthest domestic concourse from the security checkpoint, add an extra 5 to 10 minutes for the longer Plane Train ride. During peak holiday travel periods, add 30 to 45 minutes to both recommendations regardless of terminal.
When Should I Leave for Atlanta Airport? Calculator
Enter your flight details below to get a recommended time to be inside the terminal at Hartsfield-Jackson. The calculator factors in the typical ATL security wait at your departure hour, Plane Train and gate walk time, bag drop time and a safety buffer.
Tips to Beat Atlanta Airport Security Queues
A few practical decisions can significantly reduce your time in the ATL security queue regardless of which checkpoint you are using.
- Enroll in TSA PreCheck before your next ATL flight. At $78 for five years it is the most cost-effective security upgrade available at Hartsfield-Jackson. The PreCheck lane at ATL typically clears in under 10 minutes even during the busiest morning and afternoon peaks. Apply at tsaprecheck.com or at an enrollment center.
- Consider adding CLEAR if you travel frequently. CLEAR at $189 per year (less with Delta SkyMiles or credit card discounts) handles the identity verification step biometrically, letting you skip the ID document queue entirely. Used alongside PreCheck it produces the fastest possible experience at all three ATL checkpoints.
- Check the live wait time dashboard before you leave. The official ATL dashboard at atl.com/times shows current checkpoint conditions by minute. If Domestic South is showing a 40-minute wait and your flight is on Delta, leaving 20 minutes earlier is a better decision than arriving during the peak and hoping it clears.
- Know your concourse before you arrive. ATL has seven concourses spread across a significant distance. A gate in Concourse E adds 15 minutes of Plane Train travel compared to Concourse T. Check your boarding pass for the concourse assignment and factor the Plane Train ride into your total pre-flight time.
- Pack liquids in your checked bag where possible. The 3-1-1 rule still applies at all ATL checkpoints even on CT-equipped lanes. Removing the liquid step entirely speeds up your passage through the tray conveyor and reduces the risk of a bag pull for secondary screening.
- Use online check-in and mobile boarding passes. Most airlines at ATL support mobile boarding passes via their apps. Self-service bag drop kiosks are available at major carriers including Delta, Southwest and United, which shortens landside time before you reach the security queue.
- Avoid the 07:00 to 09:00 window at Domestic South if possible. Delta’s morning hub departure bank is the single most congested security window at ATL in normal operations. If your Delta flight departs at 08:00, TSA PreCheck is not optional, it is essential. If you do not have PreCheck, arrive by 05:30 to get ahead of the main wave.
- Book parking in advance at atl.com. Walk-up parking at ATL is significantly more expensive than pre-booked online rates. During the infrastructure redevelopment period, some parking areas require shuttle or Skytrain connections; allow extra time for these.
Atlanta Airport Layout and Terminal Overview
Hartsfield-Jackson Atlanta International Airport (ATL/KATL) is the world’s busiest airport by passenger volume and has held that title every year since 1998 except 2020. It handled 108.1 million passengers in 2024 and serves as the primary hub for Delta Air Lines, which accounts for the large majority of daily departures. The airport is located approximately 10 miles south of downtown Atlanta in College Park, Georgia, and is accessible via MARTA rail service (Red and Gold Lines) from the Airport station, which connects directly to the Domestic Terminal’s west end between baggage claim areas.
The airport operates a distinctive fishbone layout consisting of two terminal buildings and seven airside concourses. The Domestic Terminal serves as the main entry point, split into a North side for non-Delta carriers and a South side for Delta. After clearing security, passengers take the underground Plane Train, an automated people mover that runs 24 hours a day every two minutes, connecting all seven concourses in sequence: T, A, B, C, D, E and F. The journey from domestic security to Concourse T or A takes under five minutes; reaching Concourse E at the far domestic end takes around 15 minutes by Plane Train. The Maynard H. Jackson Jr. International Terminal sits at the eastern end of the complex and connects to Concourse F, the dedicated international concourse, which holds the only ATL gate capable of handling an Airbus A380. For the full concourse layout, gate assignments and terminal maps, see our Atlanta Airport map and terminal guide.
Atlanta Airport Security: FAQ
How long is security at Atlanta Airport in 2026?
Security wait times at Hartsfield-Jackson vary significantly by checkpoint, time of day and season. During off-peak weekday windows from 10:00 to 15:00, most passengers clear a domestic checkpoint in 10 to 20 minutes in the standard lane. During the morning peak from 07:00 to 09:00 and the afternoon peak from 16:00 to 19:00, waits of 30 to 50 minutes are common. TSA PreCheck and CLEAR members typically clear in under 10 minutes at any hour. Major holiday travel periods push all checkpoints significantly above average. The official ATL live security dashboard at atl.com/times and the MyTSA app provide current checkpoint conditions.
What are TSA PreCheck and CLEAR at Atlanta Airport and how do they work?
TSA PreCheck costs $78 for a five-year membership and gives access to dedicated express lanes where you keep on shoes, belts and light jackets and leave laptops and liquids in your bag. Most PreCheck members clear in under 10 minutes at ATL. CLEAR costs $189 per year with discounts for Delta SkyMiles members and certain credit card benefits. CLEAR uses biometric identification to verify your identity at a kiosk, letting you skip the document check line and go straight to physical screening. The two programs can be combined: CLEAR handles identity verification and PreCheck handles the physical screening with no removal of shoes, laptops or liquids. Both are available at Domestic North, Domestic South and the International Terminal checkpoints. Global Entry includes TSA PreCheck at no extra cost and is the best value for international travelers.
When is Atlanta Airport security busiest?
The two busiest windows at Hartsfield-Jackson are the morning peak from 07:00 to 09:00 and the afternoon and early evening peak from 16:00 to 19:00. Fridays and Sundays are consistently the most congested single days. Thanksgiving week, the Christmas and New Year period, Memorial Day weekend and Labor Day weekend all generate wait times well above the daily average across all three checkpoints. The quietest windows are 10:00 to 15:00 on weekdays and after 20:00 on any day. Tuesdays and Wednesdays during midday in non-holiday periods represent the most relaxed combination at ATL.
What time should I arrive at Atlanta Airport?
For domestic flights from the Domestic Terminal, arrive at least 2 hours before departure. ATL’s size means you need to account for check-in, security and the Plane Train ride to your concourse on top of the security wait. For international flights from the International Terminal, arrive at least 3 hours before departure to allow for check-in, security, passport control and the Plane Train to Concourse E or F. During peak holiday travel periods, add 30 to 45 minutes to both recommendations. TSA PreCheck and CLEAR members can reduce the domestic recommendation to 90 minutes during off-peak periods, though the Plane Train and gate walk time remain the same.
Are CT scanners in use at Atlanta Airport?
Yes. Hartsfield-Jackson has been deploying CT scanner technology across its checkpoints since 2022, with expansion continuing through 2025 and 2026. CT scanners allow passengers to leave laptops in their carry-on at equipped lanes. The TSA 3-1-1 liquid rule still applies at all ATL checkpoints regardless of scanner type: containers must be 3.4 ounces or 100ml or less and fit in a single clear quart-sized resealable bag. TSA PreCheck members are the main exception, as PreCheck permits liquids and laptops to remain in the bag during screening. Follow TSA officer instructions at the checkpoint as not all lanes have CT technology and requirements vary by lane.
What is the difference between the Domestic Terminal and International Terminal at Atlanta Airport?
The Domestic Terminal is the main entry point for most passengers, divided into North (non-Delta airlines) and South (Delta) sides, each with its own TSA checkpoint. The International Terminal, the Maynard H. Jackson Jr. International Terminal, is the separate facility for all international departures and arrivals. It has its own check-in hall, security checkpoint and access to Concourses E and F via the Plane Train. Passengers on international flights should check in and clear security at the International Terminal, not the Domestic Terminal. A free shuttle connects the two terminals with a journey time of approximately 15 minutes; treat them as separate airports for planning purposes.
Does Atlanta Airport have a live security wait time dashboard?
Yes. Hartsfield-Jackson publishes a real-time security wait time dashboard at atl.com/times showing current queue estimates for Domestic North, Domestic South and the International Terminal checkpoints. The MyTSA mobile app also aggregates passenger-reported wait times for ATL. Delta Air Lines displays estimated ATL security wait times on its app and website for Delta passengers. The Atlanta Journal-Constitution operates a user-reported real-time tool that collects GPS-verified passenger reports from inside the terminal, which is useful when the official dashboard is unavailable.
Does Atlanta Airport have priority security for business class passengers?
There is no separately managed airline priority security lane at Hartsfield-Jackson beyond the TSA program lanes. Business class and first class ticket holders who hold TSA PreCheck membership use the PreCheck lane. CLEAR, available to any passenger, gives the fastest identity verification experience regardless of ticket class. Delta Sky Priority provides priority check-in and boarding benefits for Diamond Medallion, Platinum Medallion and premium cabin passengers, but security lane access is through TSA PreCheck lanes, not a separate Delta-managed lane. Passengers without PreCheck or CLEAR in premium cabins queue in the standard lane regardless of ticket class.