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TSA Security Wait Times

LA Ontario Airport ONT

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Ontario International Airport (ONT) TSA Security Wait Time Information

The Ontario International Airport (ONT) has multiple TSA security lanes and convenient screening options like TSA PreCheck and CLEAR to ensure guests' safety and staff. The average wait time at ONT security checkpoints is 6 to 15 minutes, which can vary during peak hours. TSA recommends arriving at the airport two hours before the flight, but passenger flow at ONT averages under an hour. TSA provides a list of acceptable items for both checked and carry-on luggage. ONT also offers resources to help travelers feel safe and secure while making their way around the airport. These include City of Ontario Police & Fire Departments and Customs & Border Protection.

Get CLEAR Expedited Security at ONT!

Experience hassle-free security screening at Ontario airport with CLEAR's expedited services. Save time and skip the stress of security lines by joining CLEAR today. The CLEAR location at ONT is conveniently located within the airport, and we offer flexible hours to accommodate your travel schedule.

Exciting news! In partnership with iFly, we're offering a limited time promotion of 2 months of free CLEAR services. Plus, you can now add up to 3 family members to the trial at no extra cost. Don't miss this opportunity to simplify your airport experience. Sign up takes only a minute, so learn more about how CLEAR works and join us today!

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ONT Overview Map
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LA Ontario Airport (ONT) Terminals

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ONT - Ontario, CA - LA Ontario Airport
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Airport Security Checkpoints - Location and Hours

Terminal 2

Type:  All passengers and TSA Pre

Hours: Daily, 3:45 AM to 1:00 AM 

CLEAR Hours: Daily,  4:00 AM to 8:00 PM

Terminal 4

Type:  All passengers and TSA Pre

Hours: Daily, 3:45 AM to 1:00 AM 

CLEAR Hours: Daily,  4:00 AM to 8:00 PM

TSA PreCheck 

TSA PreCheck lanes are available at terminal 2 checkpoint at ONT airport. Frequent travelers and others who do not want to wait for long can sign up for TSA's PreCheck program at Ontario International Airport. Once signed in and approved, you will get a Known Traveler Number that helps you with access to an easy screening lane. With PreCheck, you don't need to remove shoes, belts, remove laptops from cases, and more. It is assumed that with PreCheck, you will need to wait for less than 5 minutes in a line for a security check. The office hours for PreCheck at the Ontario International Airport are from 3:45 a.m. to 1 a.m. daily.

About ONT Security Wait Times

At Ontario International Airport (ONT), the estimated wait times for security checks can vary due to different factors such as weather conditions, TSA staff availability, and airport renovations. To provide a reliable projection, ONT leverages flight volume data and TSA staffing models using advanced data science techniques. These wait times are projected to be accurate within five minutes, which has been validated by major US airlines, barring any significant outliers.

Travelers are advised to arrive at the airport well in advance of their scheduled flight departure and to use the security checkpoint wait time information provided by the TSA as a guide for planning their travel. It is recommended that you also check with your airline for any possible changes to flight schedules and ticket counter wait times as these may impact your decision regarding how early to arrive at ONT.

Please note that each airline has specific recommended arrival times, and even stricter required arrival times, at the check-in counter, departure gate, and onboard in your assigned seat before the scheduled departure time of the flight. The amount of advance arrival time required may vary depending on the airline you are using. It is essential to comply with your airline's policies and conditions of carriage, as failure to do so may result in denied boarding and forfeiture of any refund or compensation due, even if you have advance seat assignments and boarding passes.

TSA Pre Check at ONT


Terminal 2

Terminal 2 Checkpoint

Terminal 4

Terminal 4 Checkpoint

LA Ontario Airport wait times Q&A

The wait time at ONT security checkpoint varies depending on the time of day and the season. However, according to ONT's website, the average wait time is typically less than 20 minutes.

CLEAR Expedited Security is a service that allows you to bypass the regular security lines at ONT (in both terminals) and go through a separate, expedited security lane. To use this service, you must sign up for CLEAR and have your biometric data (fingerprint or iris scan) on file. When you arrive at the airport, you simply go to the CLEAR lane, scan your boarding pass and biometrics, and then proceed through security. This service can save you time and stress, especially during busy travel periods.

According to TSA regulations, liquids, aerosols, gels, creams, and pastes in carry-on luggage must be in containers that are 3.4 ounces (100 milliliters) or less per item. These containers must be placed in a clear, quart-sized plastic bag and placed in a screening bin for X-ray scanning. Larger containers of liquids can be packed in checked luggage.

If you require any assistance while going through the security checkpoints at ONT, you can speak to any TSA officer or ask for a Passenger Support Specialist (PSS). PSS's are available at ONT to help travelers with disabilities, medical conditions, and other special needs. They can also provide guidance on TSA policies and procedures.

No, the CLEAR hours may differ from the regular checkpoint hours. At ONT airport, CLEAR is available from 4:00 AM to 8:00 PM daily, while the regular checkpoint hours are from 3:45 AM to 1:00 AM daily. It is recommended to check the hours of operation for CLEAR and the regular checkpoint before arriving at the airport.

Peak hours for security checkpoints at ONT airport are typically between 6:00 AM to 9:00 AM and 4:00 PM to 7:00 PM. During these times, the wait time may be longer due to increased passenger traffic.