Security wait times at Ontario International Airport (ONT)
Ontario, California KONT #53 US airport by passengers
Official wait times are not published as open data, so we combine what travelers report with practical checkpoint advice.
- FAA status
- No delays reported Updated 1 min ago
- Weather now
- VFR 70°F Observed 9 h ago
- Late departures
- 23.0%May 2026 to July 2026
- Security line
- No recent reportsAdd yours
Security wait at ONT
No security reports for ONT in the past week. The TSA does not publish wait times as open data, so this page fills in as travelers report. Be the first to report
Checkpoints and tips
Both terminal checkpoints open at 3:30 a.m. Terminal 2 closes at 12:45 a.m., and Terminal 4 closes at 11:45 p.m. TSA PreCheck and CLEAR are both available. The airport notes that TSA may not always keep the PreCheck lane open because of passenger flow.
- CLEAR kiosks are open every day in Terminals 2 and 4, and you can sign up for CLEAR there before your flight.
- PreCheck enrollment is available onsite with no appointment, in partnership with CLEAR. Existing members can renew on site.
- PreCheck use has doubled since onsite enrollment began. In August 2026, 26% of departing passengers were using it, and as many as half in Terminal 4 at peak times.
- A third-party guide says waits are usually under 20 minutes off-peak but can exceed 30 minutes at busy times. Check current wait times before you leave.
Reviewed October 9, 2026. Confirm details on the official airport website. Spotted a change?
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