Lambert St Louis Airport Security Wait Times Guide
STL Flight Delays
Before you set off to St. Louis Airport, it's recommended to check if there are any departure delays. Alternatively, you can use our user-friendly flight tracker to monitor the status of a specific flight.
Security Checkpoints - Location & Hours
Check the security checkpoint locations and hours below. Hours set by TSA are subject to change. Full body scanners are available at every checkpoint.
Terminal 1 - A Gates
- Location: Terminal 1
- Type: CLEAR, Standard, and PreCheck
- Hours: 4:00 AM – 8:30 PM
- CLEAR: Sunday through Friday 4:00 AM - 6:00 PM, Saturday 4:00 AM - 5:00 PM
- Serves Air Canada, Delta, United and charter flights.
Terminal 1 - C Gates
- Location: Terminal 1
- Type: CLEAR, Standard, and PreCheck
- Hours: 3:45 AM – 9:30 PM
- CLEAR: Sunday through Friday 4:00 AM - 6:00 PM, Saturday 4:00 AM - 5:00 PM
- Serves Air Choice One, Alaska, American, and Frontier.
Terminal 2 - E Gates
- Location: Terminal 2
- Type: CLEAR, Standard, and PreCheck
- Hours: 3:30 AM – 10:00 PM
- CLEAR: Sunday through Friday 4:00 AM - 8:00 PM, Saturday 4:00 AM - 7:00 PM
- Serves Southwest and international charter arrivals.
See information below for CLEAR Plus and TSA PreCheck (via CLEAR) enrollment hours and locations.
All data is subject to change by the Airport, TSA, CLEAR, or other authorities.
TSA PreCheck at STL
TSA PreCheck, available at Lambert St Louis Airport (STL), is a program designed to provide expedited security screening for travelers. With TSA PreCheck, passengers can keep their shoes, light outerwear, and belts on, as well as leave laptops and 3-1-1 compliant liquids in their carry-on bags during security checks.
Where to Use TSA PreCheck at STL:
- TSA PreCheck is available at Terminal 1 - A Gates, Terminal 1 - C Gates, and Terminal 2 - E Gates within STL.
- The service is intended for select frequent flyers of participating airlines and members of U.S. Customs and Border Protection (CBP) Trusted Traveler programs.
Learn More About TSA PreCheck:
- For detailed information on how to enroll in TSA PreCheck, visit iFly TSA PreCheck Guide.
Participating Airlines at STL:
- AeroMexico
- Air Canada
- Air Choice One
- Alaska Airlines
- American Airlines
- Cape Air
- Delta Air Lines
- Frontier Airlines
- Southwest Airlines
- United Airlines
- Volaris
- Avelo Airlines
iFly Tip: Avoid the stress of airport security by learning about common errors travelers make.
CLEAR Plus & TSA PreCheck Enrollment
CLEAR Plus and TSA PreCheck help you move through security faster at STL Airport by using biometric authentication and advanced technology. Enroll in CLEAR Plus and/or TSA PreCheck at designated CLEAR enrollment locations. Start your enrollment online, then visit the enrollment location with your U.S. Passport or another acceptable ID to complete the process in person. Enroll in TSA PreCheck. You can choose TSA PreCheck alone or bundle it with CLEAR Plus at a discount.
CLEAR Lane Locations:- Terminal 1, Checkpoint A
- Sun - Fri: 4:00am - 6:00pm
- Sat: 4:00am - 5:00pm
- Terminal 1, Checkpoint C
- Sun - Fri: 4:00am - 6:00pm
- Sat: 4:00am - 5:00pm
- Terminal 2, Checkpoint E
- Sun - Fri: 4:00am - 8:00pm
- Sat: 4:00am - 7:00pm
- Terminal 1, Checkpoint A
- CLEAR Plus Enrollment:
- Sun - Fri: 4:00am - 6:00pm
- Sat: 4:00am - 5:00pm
- CLEAR Plus Enrollment:
- Terminal 1, Checkpoint C
- CLEAR Plus Enrollment:
- Sun - Fri: 4:00am - 6:00pm
- Sat: 4:00am - 5:00pm
- CLEAR Plus Enrollment:
- Terminal 2, Checkpoint E
- CLEAR Plus Enrollment:
- 4:00am - 8:00pm
- TSA PreCheck® Enrollment:
- 6:00am - 7:00pm
- Located inside the upper level of Terminal 2 near Door 2 and 3.
- CLEAR Plus Enrollment:
For more details about the CLEAR program, including locations and available airports, visit the CLEAR Airport Security Guide.
How to Check STL Airport Security Wait Times
Follow these three simple steps to check security wait times on this page:
Step 1: Find the Checkpoint Times section. Scroll to the bottom of the page or click the “Check Wait Times” button in the STL Average Checkpoint Times widget.
Step 2: Choose your arrival time. Use the dropdown menu to select when you plan to reach security.
Step 3: View estimated wait times. The site will display the average wait time for your selected period.
Tips for Using Wait Times
- Wait times are estimates: Actual conditions may vary due to crowd levels and security delays.
- Arrive early during peak hours: Security lines are often longer in the mornings and around holidays.
- Check the official airport site: Some airports provide real-time security wait times for each checkpoint. Visit STL Airport’s official website and search for "security wait times" to see if this feature is available.
Lost Items at TSA Checkpoints
If you've lost an item at a TSA checkpoint or in checked baggage at Lambert St Louis Airport (STL), you should promptly contact the airport's Lost and Found. For detailed information and to report your lost item, you can reach the TSA Lost Items Contact at TSA Lost and Found Form. Be prepared to provide a comprehensive description of your item, including color and any unique features, to aid in its identification and recovery.
About STL Security Wait Times
The security wait times shown for Lambert St Louis Airport are computed using a comprehensive examination of historical flight records and TSA staffing timetables. Utilizing sophisticated data evaluation techniques, various 3rd party services, and publicly available data sets to offer fairly precise estimates of wait times at STL. However, it's important to realize that these estimates may vary due to unforeseen incidents. The TSA advises passengers to get to the airport well before their planned flight departure time.
We strive to assist you in your travel preparations by delivering reliable estimates of security checkpoint wait times. We also recommend contacting your airline for information on ticket counter wait times and any potential changes to your flight schedule. These factors should be taken into account when deciding when to arrive at STL. Keep in mind, each airline has its own suggested and mandatory arrival times.
iFly Tip: Understand the logistics behind your flight route with insights on airline hubs.
About this Page: Please note that while we strive to keep the content on this page current and accurate, we cannot guarantee it due to the ever-changing nature of airports and airlines; for more details about our data and practices, refer to our Trust & Transparency statement. To report any data issues, use our feedback form.
TSA Pre Check at STL
Terminal E
Concourse E Checkpoint
Terminal EAST
Concourse E-East Checkpoint
Terminal MAIN
Concourse A Checkpoint
Concourse C Checkpoint
Tips, Help & Resources
iFly.com can help you get to, through, and between airports around the world. Here are some things you may need to know that can assist you during your journey specific to STL:
- Once you get through security, pull up the interactive Lambert St Louis airport terminals map to navigate to your gate, and see all the STL restaurant and shopping options along the way.
- Remember that a great low-cost alternative to parking within the STL airport facility is to use an off-airport parking lot. They offer lower costs, a bit further away from the terminals.
- If you have some time before your flight's departure, be sure to grab a bite, peruse the shops, or jump on the free wifi.
- The next time you need to fly from the Saint Louis area, don't forget to check nearby airports to compare with STL airports' flight fares.
Lambert St Louis Airport wait times Q&A
Find more help here for your journey through the airport